Emerson Ak Protocol Nga 2000 Software Manual Protocol, English

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90003752(1) [NGA-e (AK-Protocol)] 10/98

Rosemount Analytical

NGA 2000

Software Manual

AK - Protocol

Software Version 3.2.X

1st Edition 10/98

Catalog No.: 90 003 752

Managing The Process Better

90003752(1) [NGA-e (AK-Protocol)] 10/98

Rosemount Analytical

This Operation Manual includes information about the operation of the instrument.

Information about the additional indications and notes regarding maintenance, troubleshooting and repair

are found in the accompanying Maintenance & Operation Manual.

Troubleshooting, component replacement and internal adjustments must be made by qualified

service personnel only.

Fisher-Rosemount GmbH & Co does not take responsibility for any omissions or errors in this manual.

Any liability for direct or indirect damages, which might occur in connection with the delivery or the use of

this manual, is expressly excluded to the extend permitted by applicable law.

This instrument has left the works in good order according to safety regulations.

To maintain this operating condition, the user must strictly follow the instructions and consider the warnings

in this manual or provided on the instrument.

Misprints and alterations reserved

1st Edition: 10/98

Read this operation manual carefully before attempting to operate the analyzer !

For expedient handling of reports of defects, please include the model and serial number which

can be read on the instrument identity plate.

Fisher - Rosemount GmbH & Co.

European Technology Center

Industriestrasse 1

D - 63594 Hasselroth • Germany

Phone + 49 (6055) 884-0

Telefax + 49 (6055) 884-209

Internet: http://www.processanalytic.com

90003752(1) [AK-Commands] 10/98 AK

Contents

I) V24/RS232/485 Interface – Basics 1-1

1Introduction ................................................................................................ 1-1

2Hardware ................................................................................................... 1-2

3Protocol settings ........................................................................................ 1-3

3.1 Command telegram............................................................................. 1-3

3.2 Response telegram............................................................................. 1-4

3.3 Command telegram for RS485 BUS operating ................................... 1-5

3.4 Response telegram for RS485 BUS operating.................................... 1-6

4Specifications of data settings ................................................................... 1-7

4.1 Head telegram (Header)...................................................................... 1-7

4.2 Data block and error status byte ......................................................... 1-8

4.3 End of telegram................................................................................... 1-9

5Examples for potential responses to control or write commands resp.

to command telegrams with data (format) errors ....................................... 1-10

6Function sequence and error status after the receipt of the

"SRES" or "STBY" commands................................................................... 1-18

II) V24/RS232/485 Interface – Single Analyzers and Systems 2-1

1Basic Informations ..................................................................................... 2-2

2List of all Codes [Commands - Overview including page numbers]..... 2-5

2.1 Control commands.............................................................................. 2-5

2.2 Read commands................................................................................. 2-6

2.3 Write commands................................................................................. 2-7

3Description of all Control Commands ........................................................ 2-8

4Description of all Read Commands ........................................................... 2-39

5Description of all Write Commands............................................................ 2-85

Supplement

1Overview about working AK commands in NGA devices ......... Supplement -1

2AK Service Commands............................................................. Supplement -3

AK 90003752(1) [AK-Commands] 10/98

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 1

Protocol settings of a serial interface

between a test bench control computer

and peripheral analyzers on exhaust test benches

1. Introduction

The serial interface is made for slow point to point connections (f ≤≤ 10 Hz). The

communication between the test bench control computer (TBCC) and the peripheral

analyzers works according to the master slave principle. That means that the peripheral

analyzers will only answer with a response telegram to the command telegram of the

TBCC. They will not send an own message.

You can distinguish two cases:

(1) Analyzers in a function unit (system)

Some analyzers are combined to a logical unit. They are connected to the TBCC via

an front-end computer. In that case the communication will not take place directly

between the TBCC and the analyzers, but between the TBCC and the front-end

computer. Each analyzer or the whole system unit will be identified by a defined

channel number:

K0 is the channel number for the whole defined system.

("Assembling command resp. assembling report")

Kn (n=1, nmax) is the channel number for each analyzer.

KV is the channel number for the front-end computer.

(2) Single analyzers

Each analyzer is connected directly to the TBCC. In that case the identification of each

analyzer will be done by the hardware connections and not by a software control. That

is why the two channel number bytes (Kn) could be deleted. But in spite of that the

channel number is generally 0 (K0) to get a uniform protocol.

The data transfer will only be done by ASCII code to get an easy handling of the protocol

with a terminal for simulation of the TBCC, the system unit and the analyzers. Therefore,

no parity check will be done as data saving.

1 - 2AK 90003752(1) [AK-Commands] 10/98

2. Hardware

1. Baud rate: 1200, 2400, 4800, 9600, 19200

2. Length of signs: 1 start bit

7 or 8 data bits

1 or 2 stop bits

3. Parity: even/odd/none

4. Operating: full duplex, no echo

5. Handshake: Xon/Xoff

6. Plug: 9 pin sub d, socket

7. Pin assignment: RS 232 module

RS 485 module

GND

Rxd

TxD

GND

RxD-

RxD+

TxD+

TxD-

Relay 1 contact NC/NO

Relay 2 contact NC/NO

Relay 3 contact NC/NO

Relay common node

Relay 1 contact NC/NO

Relay 2 contact NC/NO

Relay 3 contact NC/NO

Relay common node

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 3

3. Protocol settings

The data and command transfer protocol has the following structure:

3.1. Command telegram

1. Byte STX

2. Byte DON'T CARE

3. Byte FUNCT. CODE 1

4. Byte FUNCT. CODE 2 HEAD

5. Byte FUNCT. CODE 3

6. Byte FUNCT. CODE 4

7. Byte BLANK

8. Byte "K" VARIABLE DATA

9. Byte NUMBER (number with several

digits possible)

A(other data

Tcan also disappear,

Adepending on the

function code)

n. Byte ETX END

1 - 4AK 90003752(1) [AK-Commands] 10/98

3.2. Response telegram

1. Byte STX

2. Byte DON'T CARE

3. Byte FUNCT. CODE 1

4. Byte FUNCT. CODE 2 HEAD

5. Byte FUNCT. CODE 3

6. Byte FUNCT. CODE 4

7. Byte BLANK

8. Byte ERROR STATUS FIXED

DATA

AVARIABLE DATA

T(can also disappear,

Adepending on the

function code)

n. Byte ETX END

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 5

3.3. Command telegram for RS485 BUS operating

1. Byte STX

2. Byte BUS ADDRESS

3. Byte FUNCT. CODE 1

4. Byte FUNCT. CODE 2 HEAD

5. Byte FUNCT. CODE 3

6. Byte FUNCT. CODE 4

7. Byte BLANK

8. Byte "K" VARIABLE DATA

9. Byte NUMBER (Number with several

digits possible)

A(other data

Tcan also disappear,

Adepending on the

function code)

n. Byte ETX END

1 - 6AK 90003752(1) [AK-Commands] 10/98

3.4. Response telegram for RS485 BUS operating

1. Byte STX

2. Byte BUS ADDRESS

3. Byte FUNCT. CODE 1

4. Byte FUNCT. CODE 2 HEAD

5. Byte FUNCT. CODE 3

6. Byte FUNCT. CODE 4

7. Byte BLANK

8. Byte ERROR STATUS FIXED

DATA

AVARIABLE DATA

T(can also disappear,

Adepending on the

function code)

n. Byte ETX END

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 7

4. Specifications of data settings

4.1. Head telegram (Header)

The begin of each transfer is a "STX" in the first byte. Each "STX" will start a new transfer.

Previous transfers will be deleted, if they are not finished by "ETX". That means, only

completed telegrams may be interpreted and answered.

You can take any content for the "DON'T CARE" byte, excluding control signs or signs

reserved by the AK commands.

For the RS485 BUS operating an address byte will be used instead of the "DON'T CARE"

byte. The analyzers will only answer to this command if the bus address setup will concur

with this byte.

In the command telegram a function code will be sent to the system unit or the analyzer

with the four function bytes.

In the response telegram this function code will be sent back as an echo if the transfer is

successful. The echo will be four question marks (????), if

• the command telegram has not minimum the number of bytes of the head telegram, the

channel number in the data part and the end telegram (number of bytes = 10; using a

channel number with two digits = 11 bytes) or

• the function code has errors or is unknown.

The function code may not contain blanks.

There are three groups of function codes:

(1) Control commands

(2) Read commands

(3) Write commands

1 - 8AK 90003752(1) [AK-Commands] 10/98

4.2. Data block and error status byte

The data presentation is variable. A fixed format will not be used. A blank or a <CR> with

<LF> will be used as separating characters of data. The separation with <CR><LF> will

only be done, if the following complete date will have more than 60 digits. Each data set

will begin normally with a blank.

The data block of the command telegram has only variable data. These data depend on

the function code. They can disappear for some function codes excluding the channel

number. The channel number can have more than two bytes.

The data block of the response telegram is divided in fixed and variable data. The first

digit of the fixed data is a blank followed by an error status byte. The error status number

will be zero for an error free running analyzer or system unit. The error status number will

be counted up from 1 to 9 with each change in the error status. The error status number

will be zero again after the errors will be removed. Changing the status of the system will

not change the error status number. The variable data depend on the function code. They

can disappear for some function codes.

The long and variable floating point format or the E- Format are allowed to display the

digits of numbers. You can find in each analyzer protocol which of these formats may be

used. The decimal point can disappear for integers. The "+/-" sign may only be used for

negative numbers. Digits without physical meaning have to be vanished.

You can distinguish the following cases if a date with an error exists for a reading:

(1) The transfer of the date is not possible, e.g. an analyzer in a system is missing or it

cannot send a signal.

→→ The date will be replaced by a "#".

(2) The date is only valid with restrictions, e.g. FID temperature too low.

→→ The date will begin with a "#".

Range overflow and range underflow will be displayed in the same way. "Valid" means

that no criterions of plausibility will be considered.

Example:

You ask for a concentration value and the analyzer is in the "stand-by" mode. The date

must not be marked with "#" as "valid with restrictions", if the analyzer would work

normally in the operation mode.

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 9

If an analyzer or a system is not in the "REMOTE" status, the control and write commands

have to report "OF" ("Offline") in the data set to the. In system units the channel number

has to be reported, too.

If one analyzer is missing, a system unit has to send the channel number and "NA" ("Not

Available") to the test bench control computer with control and write commands.

A response telegram is not possible, if the test bench control computer has a direct

contact to the analyzers and one analyzer is missing or the whole system is missing. So

the test bench control computer has to realize the missing of devices by "Time Out".

If the system or the analyzer is occupied by executing a function, the new start of a control

command will lead to the response "BS" (Busy) in the data block of the response

telegram. The running function will not be disturbed. Exception: The order was a software

reset.

If the data or parameters transfer is not complete (i.e. not expected format) in the

command telegram to the system or the analyzer, the test bench control computer will get

a "SE" (Syntax Error) in the data block of the following response telegram.

If the system or the analyzers cannot work with the data or the parameters of the

command telegram (data error, parameter error), the test bench control computer will get

a "DF" (data error) in the data block of the following response telegram.

4.3. End of telegram

Each transfer will end with "ETX" in the last byte.

1 - 10 AK 90003752(1) [AK-Commands] 10/98

5. Examples for potential responses to control or write commands resp.

to command telegrams with data (format) errors:

1. Analyzer and/or system unit with several analyzers "Online"

and called analyzers are existing.

1. Byte STX

2. Byte DON'T

CARE

3. Byte C

4. Byte O

5. Byte D

6. Byte E

7. Byte BLANK

8. Byte xError status byte

evtl.

variable

...

Data

n. Byte ETX

Error status byte: Value is zero: Device without error.

Value is not zero: Device with one or more errors.

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 11

2. Analyzer and/or system unit with several analyzers "Offline"

and called analyzers are existing.

1. Byte STX

2. Byte DON'T

CARE

3. Byte C

4. Byte O

5. Byte D

6. Byte E

7. Byte BLANK

8. Byte xError status byte

9. Byte BLANK

10. Byte K

11. Byte n

12. Byte BLANK

13. Byte O

14. Byte F

evtl.

variable

...

Data

n. Byte ETX

Error status byte: Value is zero: Device without error.

Value is not zero: Device with one or more errors.

11. Byte: Channel number is zero: "The whole system unit offline".

Channel number is one to n: "Single analyzer offline".

1 - 12 AK 90003752(1) [AK-Commands] 10/98

3. Called system unit "online", called single analyzer not available.

If the test bench control computer will call the devices directly and the system unit or

the analyzer are not available, you will not get any response telegram. So, the test

bench control computer will have to realize the missing of the system or of the analyzer

by "Time Out".

1. Byte STX

2. Byte DON'T

CARE

3. Byte C

4. Byte O

5. Byte D

6. Byte E

7. Byte BLANK

8. Byte xError status byte

9. Byte BLANK

10. Byte K

11. Byte n

12. Byte BLANK

13. Byte N

14. Byte A

15. Byte ETX

Error status byte: Value is zero: Device without error

Value is not zero: Device with one or more errors

11. Byte: Channel number one to n: "Called device not available".

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 13

4. Called system unit "offline", called single analyzer not available.

If the test bench control computer will call the devices directly and the system unit or

the analyzer are not available, you will not get any response telegram. So, the test

bench control computer will have to realize the missing of the system or of the analyzer

by "Time Out".

1. Byte STX

2. Byte DON'T

CARE

3. Byte C

4. Byte O

5. Byte D

6. Byte E

7. Byte BLANK

8. Byte xError status byte

9. Byte BLANK

10. Byte K

11. Byte 0

12. Byte BLANK

13. Byte O

14. Byte F

15. Byte BLANK

16. Byte K

17. Byte n

18. Byte BLANK

19. Byte N

20. Byte A

21. Byte ETX

1 - 14 AK 90003752(1) [AK-Commands] 10/98

Error status byte: Value is zero: Device without error.

Value is not zero: Device with one or more errors.

11. Byte: Channel number zero: "System unit offline"

17. Byte: Channel number one to n: "Called device not available.

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 15

5. Called unit or channel is busy with a running function.

1. Byte STX

2. Byte DON'T

CARE

3. Byte C

4. Byte O

5. Byte D

6. Byte E

7. Byte BLANK

8. Byte xError status byte

9. Byte BLANK

10. Byte K

11. Byte n

12. Byte BLANK

13. Byte B

14. Byte S

15. Byte ETX

Error status byte: Value is zero: Device without error.

Value is not zero: Device with one or more errors.

11. Byte: Channel number is zero: "The whole unit is busy".

Channel number is one to n: "Single analyzer is busy".

1 - 16 AK 90003752(1) [AK-Commands] 10/98

6. The data are incomplete or the data do not have the expected format.

1. Byte STX

2. Byte DON'T

CARE

3. Byte C

4. Byte O

5. Byte D

6. Byte E

7. Byte BLANK

8. Byte xError status byte

9. Byte BLANK

10. Byte K

11. Byte n

12. Byte BLANK

13. Byte S

14. Byte E

15. Byte ETX

Error status byte: Value is zero: Device without error.

Value is not zero: Device with one or more errors.

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 17

7. The data or the parameters do not have the expected size.

1. Byte STX

2. Byte DON'T

CARE

3. Byte C

4. Byte O

5. Byte D

6. Byte E

7. Byte BLANK

8. Byte xError status byte

9. Byte BLANK

10. Byte K

11. Byte n

12. Byte BLANK

13. Byte D

14. Byte F

15. Byte ETX

Error status byte: Value is zero: Device without error.

Value is not zero: Device with one or more errors.

1 - 18 AK 90003752(1) [AK-Commands] 10/98

6. Function sequence and error status after the receipt of the

'SRES' or 'STBY' commands

1. The test bench control computer is sending the control command SRES (Reset)

to the system unit or any single analyzer.

All running functions or procedures will be canceled. An initializing will start, that is

analogous to the switching on of the system unit or the analyzer: CPU and memory

check, regulating or controlling of required temperatures, igniting of the flame in a FID

an so on. The operation mode of the system or analyzer is "stand-by" during the

initializing, even if the device is not ready and error free. That means, the status STBY

will be reported to the read command ASTZ. The test bench control computer can only

realize with the read command ASTF (error status), if the device is ready for

measurements. The device will be ready to measure, if the essential functions of the

current measuring instruction will be error free.

Example:

The status of the system unit or analyzer is SXYZ. The test bench control computer

sends SRES:

Test bench control computer sends SRES Kn

→→ System or analyzer will response SRES x

The system unit or the analyzer will cancel the status SXYZ. It will run a CPU and

memory check and it will control the temperatures. If the temperatures are out of the

allowed setpoint range, the device will regulate it. The FID will control the flame and will

try to ignite it, if necessary, and so on. The test bench control computer will read the

operation mode and the error status:

Test bench control computer sends ASTZ Kn

→→ System or analyzer will response ASTZ 0 SMAN STBY

Test bench control computer sends ASTZ Kn

System or analyzer will response ASTZ x SMAN STBY

Test bench control computer sends ASTF Kn

System or analyzer will response ASTF x n

The error status byte will be zero and the system or the analyzer will be ready to

measure, if all temperatures are in the allowed setpoint range, if the FID flame is

burning etc.

If these parameters are not correct, the error status byte will be different from zero. The

test bench control computer will read the operation mode and the error status as long

as the system or the analyzer will be ready to measure. The test bench control

computer will control the maximum time for this reading.

I) V24/RS232/485-Interface - Basics

90003752(1) [AK-Commands] 10/98 AK 1 - 19

2. The test bench control computer is sending the control command STBY (Stand-

by) to the system unit or any single analyzer.

There are two different cases:

A If the system or the analyzer is resting, this mode will be finished. Then, it will be tried to

get the stand-by mode ready for an error free measurement. The system or the

analyzer will regulate all temperatures to the required setpoints, that were down during

the resting. The FID will control the flame burning and if necessary it will try to ignite the

flame etc. The operation mode of the system or analyzer is "stand-by" during these

checkups, even if the device is not ready and error free. That means, the status STBY

will be reported to the read command ASTZ. The test bench control computer can only

realize with the read command ASTF (error status), if the device is ready for

measurements. The device will be ready to measure, if the essential functions of the

current measuring instruction will be error free.

Example:

The system or the analyzer is resting. No error is existing. The test bench control

computer will ask for the operation mode:

Test bench control computer sends ASTZ Kn

→→ System or analyzer will response ASTZ 0 SREM SPAU

Test bench control computer sends STBY. System or analyzer shall accept the stand-

by mode:

Test bench control computer sends STBY Kn

→→ System or analyzer will response STBY 0

The system or analyzer is finishing the resting. Then, it will try to get the stand-by mode

for an error free measurement. The system or analyzer will check the conditions: Are all

temperatures in the setpoint range ? Is the FID flame burning ? etc. The test bench

control computer will read the operation mode:

Status is error free:

Test bench control computer sends ASTZ Kn

→→ System or analyzer will response ASTZ 0 SREM STBY

or status has still some errors:

Test bench control computer sends ASTZ Kn

→→ System or analyzer will response ASTZ x SREM STBY

Test bench control computer sends ASTF Kn

→→ System or analyzer will response ASTF x n

The error status byte will be zero and the system or the analyzer will be ready to

measure, if all temperatures are in the allowed setpoint range, if the FID flame is

burning etc.

If these parameters are not correct, the error status byte will be different from zero. The

test bench control computer will read the operation mode and the error status as long

as the system or the analyzer will be ready to measure. The test bench control

computer will control the maximum time for this reading.

1 - 20 AK 90003752(1) [AK-Commands] 10/98

B The system or the analyzer is in the operation mode SXYZ. This mode will be finished.

Then, it will be tried to get the stand-by mode ready for an error free measurement. If

there will be an error in the function SXYZ, the system or the analyzer will try to remove

this error to get the stand-by mode ready for an error free measurement (i.e. FID flame

is not burning, the FID will try to ignite). The operation mode of the system or analyzer

is "stand-by" during these check-ups, even if the device is not ready and error free.

That means, the status STBY will be reported to the read command ASTZ. The test

bench control computer can only realize with the read command ASTF (error status), if

the device is ready for measurements. The device will be ready to measure, if the

essential functions of the current measuring instruction will be error free.

Example:

The system or the analyzer is in the operation mode SXYZ. An error is existing with the

error number n, i.e. FID flame is not burning. The test bench control computer will ask

for the error status:

Test bench control computer sends ASTF Kn

→→ System or analyzer will response ASTF x n

Test bench control computer sends STBY. System or analyzer shall accept the stand-

by mode and get ready for an error free measurement:

Test bench control computer sends STBY Kn

→→ System or analyzer will response STBY x

The system or analyzer is finishing the operation mode SXYZ. Then, it will try to get the

stand-by mode for an error free measurement. The system or analyzer will check the

conditions and will try to remove the error, i.e. ignition of the FID flame. The test bench

control computer will read the operation mode:

Error is removed (e.g. Flame was ignited):

Test bench control computer sends ASTZ Kn

→→ System or analyzer will response ASTZ 0 SREM STBY

Error is still existing (e.g. Flame has not been ignited):

Test bench control computer sends ASTZ Kn

→→ System or analyzer will response ASTZ x SREM STBY

Test bench control computer sends ASTF Kn

→→ System or analyzer will response ASTF x n

The error status byte will be zero and the system or the analyzer will be ready to

measure, if the error is removed i.e. the FID flame is still burning.

If these parameters are not correct, the error status byte will be different from zero. The

test bench control computer will read the operation mode and the error status as long

as the system or the analyzer will be ready to measure. The test bench control

computer will control the maximum time for this reading.

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 1

Specifications of the criterions and codes for the communication

between

• the front-end computer (system computer) of an exhaust analyzer system and the test

bench control computer.

• each analyzer of an exhaust analyzer system and the test bench control computer.

• the front-end computer (system computer) of an exhaust analyzer system and their

single devices. The following measurement systems and equipments can also be such

single devices.

• the front-end computer (system computer) of a fuel consumption analyzer and a test

bench control computer.

• the front-end computer (system computer) of an SHED measurement equipment and

the test bench control computer. (SHED: Sealed Housing for Evaporative Determination)

• the front-end computer (system computer) of a sampling system and the test bench

control computer.

The computer of an analyzer or of a system will be named as FU

(Function Unit) and the test bench control computer will be abbreviated

with TBCC.

2 - 2AK 90003752(1) [AK-Commands] 10/98

1. Basic Informations

You can distinguish three cases:

(1) Exhaust analyzer system:

Some analyzers are combined logically. That means, these analyzers are connected with

the TBCC via an front-end computer (system computer). The communication does not

take place directly between the TBCC and the analyzers, but it will take place via the front-

end computer. The identification of each device resp. of the whole system will be done by

a channel number. K0 means the whole configured analyzer system ("assembling

command resp. assembling report"). Kn (n=1, nmax) means each physical available

analyzer. KV means the corresponding front-end computer.

Some analyzers and the sampling devices or systems (e.g. CVS equipment, particle

sampler, sampling system, etc.) are combined logically. That means, these analyzers are

connected with the TBCC via an front-end computer (system computer). The communi-

cation does not take place directly between the TBCC and the devices or systems, but it

will take place via the front-end computer. The identification of each device and system

will be done by a channel number. The handling of the analyzers will be like described

above. All the other devices or systems can only be called directly by the corresponding

channel number. The front-end computer must know the mnemonics of these devices and

systems. Furthermore, the front-end computer has to be able to send orders and read

commands to the channels resp. to send responses to the TBCC.

(2) Single exhaust analyzers (single channel analyzers):

All analyzers are connected to the TBCC individually. So, an identification of the analyzers

by the software would not be necessary, because the analyzers are identified by their

hardware connections. But to get a homogeneous protocol, the channel number will be

indicated with K0.

(3) Single exhaust analyzers (multi channel analyzers):

All analyzers are connected to the TBCC individually, but they measure more than a single

component (e.g. CO and C02). The identification by the software is necessary, because it

will call the single channels resp. components. That is why such a single analyzer will be

treated like a system.

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 3

The codes determined in this manual are valid for the communication between

• the TBCC and the front-end computer of an exhaust analyzer system.

• the front-end computer of an exhaust analyzer system and the corresponding single

devices.

• the TBCC and the single exhaust analyzers connected directly to the TBCC.

• the TBCC and other exhaust measuring or analyzing devices or equipments connected

directly to the TBCC.

The floating point format is valid for the signal transfer.

The physical units are determined as follows:

• Exhaust values: ppm

• Temperatures: K

• Pressures: Pa

• Flow: l/min

The analyzer system or each analyzer can be set to the operation mode "MANUAL"

selecting "REMOTE DISABLE" for the parameter "REMOTE EN-/DISABLE". This setup

does not depend on the previous status of the system or analyzer.

If you select "REMOTE ENABLE", the mode "MANUAL" will retain for the moment, but the

TBCC can call this operation mode with a control command. If the TBCC will setup the

system/the analyzer to "REMOTE", the system/the analyzer will execute control

commands from the TBCC. Precondition: The system/the analyzer is able to start the

function selected.

In the mode "REMOTE DISABLE", the TBCC can only send read commands. It is only

possible to read signals and status informations. If then the system or the analyzer is in

the mode "MANUAL", it will ignore the control command from the TBCC. No change of the

error status will be done in the response to the TBCC. Instead of that the response will

display "MANUAL" as first date.

The same will be valid, if the parameter is "REMOTE ENABLE", but the TBCC did switch

the system/the analyzer to the mode "MANUAL".

Otherwise, the operation mode can only be recognized by reading the status.

This is also valid during a test is running.

2 - 4AK 90003752(1) [AK-Commands] 10/98

If it is possible in a system to put single channels together to lines, so the following

definition will be valid:

A line is the summary of "1-x" analyzers to a logical group "y", that can be switched

physically to a gas channel "z". Each device can only be assigned to one line at the

same time. If you will try to assign a channel to another line and this channel is already

assigned, the front-end computer will send as response "DF" (data error).

The organization of each defined line will be done in the front-end computer (CODE

KV Ln ...). The order must be sent to the front-end computer "KV".

A line will be dissolved by the configuration without assignment of channels (CODE KV

Ln) or by the reset order (SRES).

All available gas inputs can be assigned to a defined line. So it is possible to assign

different lines to different gas sampling points, e.g. in front of a catalyst, behind a

catalyst. If the gas running time will change in such cases, you have to regard for it.

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 5

2. List of all Codes

2.1. Control commands

CODE Function Page

SALI Kn Mm Linearization check with spangas 2 - 8

SARA Kn Autoranging "OFF" (located range will remain) 2 - 9

SARE Kn Autoranging "ON" 2 - 9

SATK Kn Autom. calibration

(zero and span calibration + zerogas + stand-by) 2 - 10

SEGA Kn Spangas (spangas will flow with time limit) 2 - 15

SEMB Kn Mm Set range (1, 2, 3, 4) 2 - 16

SFRZ Kn Decimal point setup for floating point format 2 - 18

SGTS Kn Device test 2 - 19

SHDA K0 Hold mode "OFF" 2 - 20

SHDE K0 Hold mode "ON" 2 - 20

SINT Kn Start integration (integral average) 2 - 21

SLCH Kn Mm Linearization check (with gas distribution) 2 - 22

SLIN Kn Mm Linearization

(with determination of corrections and saving) 2 - 23

SLST Kn Set linearization step and get values 2 - 24

SMAN Kn Operation mode "Manual" 2 - 25

SMGA Kn Samplegas (will be sucked or will be on) 2 - 26

SNAB Kn Zerogas calibration 2 - 27

SNGA Kn Zerogas (zerogas will flow with time limit) 2 - 28

SPAB Kn Spangas calibration 2 - 29

SPAU Kn Pause (resting status, e.g. pumps, ozonator, deozonator, high

voltage off, gas input closed within the device) 2 - 30

SQEF Kn Mm Cross interference (only for CO analyzers) 2 - 31

SREM Kn Operation mode "Remote" 2 - 32

SRES Kn Reset (analyzer will change via initializing mode to stand-by) 2 - 33

SROF Kn Delay modus "OFF" (operation mode: signal output with/without

delay time, involved are SINT, AKON, AIKO, AIKG, analog signal) 2 - 34

SRON Kn Delay modus "ON" (analog to "SROF") 2 - 34

SSPL Kn Purging (purge air will be sucked or will be on) 2 - 35

ST9O Kn Set t90 time step (S = fast, M = medium, L = slowly) 2 - 36

STBY Kn Stand-by (get ready for measurement no matter of the previous

history) 2 - 37

Optional:

SCAL Kn Start system calibration (only for platform) 2 - 13

SENO Kn NO measurement (operation mode CLD) 2 - 17

SNOX Kn NOx measurement (operation mode CLD) 2 - 17

Kn: Channel n

Mm: Range m

Response

The response to the control commands will contain the CODE of the control command and

the error status byte (0-9).

2 - 6AK 90003752(1) [AK-Commands] 10/98

2.2. Read commands

CODE Function Page

AAEG Kn Spangas deviation 2 - 39

AALI Kn Mm Deviations of the last linearization checks with spangas 2 - 40

AANG Kn Zerogas deviation 2 - 41

AEMB Kn Selected range (R1, R2, R3, R4) 2 - 45

AFDA Kn CODE Zero- /spangas time (function length of calibration) 2 - 46

AFDA Kn CODE Purge time 2 - 46

AGID Kn Device identification 2 - 47

AGRWKn mLimit 2 - 48

AIKG Kn Concentration integral average; all (in ppm) 2 - 49

AIKO Kn Concentration integral average (in ppm) 2 - 51

AKAK Kn Mm Calibration gas concentration (in ppm) 2 - 53

AKAL Kn Stored calibration corrections 2 - 54

AKFG Kn Configuration of the system 2 - 57

AKON Kn Concentration (current value in ppm) 2 - 58

ALCH Kn Mm Deviations of the last linearization checks 2 - 61

ALIK Kn Calculation of linearization curve 2 - 62

ALIN Kn Mm Linearization values in the device (X/Y = Setpoint-/raw value) 2 - 63

ALKO Kn Mm Polynomial coefficents of the linearization curve 2 - 64

ALST Kn Linearization steps 2 - 65

AM90 Kn Actual response time (t90 time) 2 - 66

AMBA Kn Mm Begin of range (in ppm) 2 - 67

AMBE Kn Mm End of range (in ppm) 2 - 68

AMBU Kn Switch levels for autoranging 2 - 69

AMDR Kn Manual adjusted pressure 2 - 70

AQEF Kn Cross interference check result (in ppm) (only for CO analyzers) 2 - 71

ASOL Kn Setpoint value with limits 2 - 72

ASTA Kn General status of the system 2 - 73

ASTF Kn Internal error status 2 - 74

ASTZ Kn Device status 2 - 76

ASYZ Kn System time (year, month, day, hour, min., sec.) 2 - 78

AT9O Kn T90 time (response time) 2 - 79

ATEM Kn mTemperature 2 - 80

ATOL Kn Mm Stability tolerances 2 - 81

AVEZ Kn Delay and synchronization time 2 - 83

AZEI Kn CODE Times (for procedures) 2 - 84

Optional:

ABST Kn Counter of operating hours 2 - 42

ADRU Kn mPressure (for service) 2 - 43

ADUF Kn mFlow (for service) 2 - 44

AKEN Kn Device tag 2 - 56

AKOWKn Mm Correction (zerogas calibration and gradient) 2 - 60

AUKA Kn Uncorrected analog value 2 - 82

Kn: Channel n

Mm: Range m

Response

The response to the read command will contain the CODE of the read command,

the error status byte (0-9) and the data.

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 7

2.3. Write commands

CODE Function Page

EFDA Kn CODE

DATA Zero- /spangas time (function length of calibration) 2 - 85

EFDA Kn CODE Purge time 2 - 85

EGRWKn DATA Limits 2 - 87

EKAK Kn Mm

DATA Calibration gas concentration (in ppm)

Value = 0: no spangas available 2 - 88

EKFG Kn DATA Configuration of the system 2 - 90

ELIN Kn Mm

DATA Linearization values in the device (X/Y = Setpoint-/raw value) 2 - 91

ELKO Kn DATA Polynomial coefficents of the linearization curve 2 - 92

ELST Kn DATA Linearization steps 2 - 93

EMBA Kn Mm

DATA Begin of range (in ppm)

Value = 0: no range defined 2 - 94

EMBE Kn Mm

DATA End of range (in ppm)

Value = 0: no range defined 2 - 95

EMBU Kn DATA Switch levels for autoranging 2 - 96

EMDR Kn DATA Manual adjusted pressure 2 - 97

ESOL Kn m DATA Setpoint value with limits 2 - 98

ESYZ Kn DATA System time (year, month, day, hour, min., sec.) 2 - 99

ET9O Kn DATA T90 time (response time) 2 -100

ETOL Kn Mm

DATA Stability tolerances 2 -101

EVEZ Kn DATA Delay and synchronization time 2 -102

EZEI Kn CODE

DATA Times (for procedures) 2 -103

Optional:

EKEN Kn DATA Device tag 2 - 89

Kn: Channel n

Mm: Range m

Response

The response to the write commands will contain the CODE of the write command and

the error status byte (0 - 9).

2 - 8AK 90003752(1) [AK-Commands] 10/98

3. Description of all Control Commands

SALI – Control command "Linearization check with spangas"

Starting this command the analyzer in a system or the single analyzer will start the

spangas flow with all available spangases one after another. It will check the setpoint

values automatically. The device will record the determined values and store the raw/

setpoint deviations. These deviations can be read with the command "AALI".

Control command

SALI Kn Mx

Function associated to channel n, range x

Code

Response

SALI 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 9

SARA – Control command "Autoranging OFF"

SARE – Control command "Autoranging ON"

Starting the command "Autoranging ON" the analyzers in a system or the single analyzer

will select the best range for the current concentration automatically.

With the control command "SEMB" the autoranging will be stopped and the range sent

with the "SEMB" command will be selected. The command "Autoranging OFF" will stop

this function, but the found range will remain.

Control command

SARE K0

SARA K0

Function associated to the whole system unit

Code

SARE Kn

SARA Kn

Function associated to a single analyzer

Code

2 - 10 AK 90003752(1) [AK-Commands] 10/98

SATK – Control command "Automatic calibration"

Starting this command the analyzers in a system or the single analyzer will start a

calibration procedure to determine the correction values. The required calibration gases

and the pumps will be switched on automatically. Then, the calibration procedure will start

automatically. Such a procedure has to run until the end. It may not be canceled or

interrupted by other functions. Otherwise it is not sure that the correction values will be

valid to calculate the exhaust values of analysis. Exceptions are the commands "Reset" or

"Stand-by". After the procedure will be over the system, the analyzers in a system or the

single analyzer will have to change to the operation mode "Stand-by".

Control command

SATK K0

Function associated to the whole system unit

Code

SATK K1 Kn

Function associated to channel n

Function associated to channel 1

Code

SATK Kn M3

Function associated to channel n and range 3

Code

Response

SATK 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 11

Stability control procedure

Yes

Wait dead time Tt, if

gases were switched

Start timer for time-out To

Calculate concentration

mean value K1 over time Ti

Set and start timer

for stability time

Calculate concentration

mean value Knew over time Ti

Deviation = | K1 - Knew|

Time out ?

Dev.

≥≥

Tol.

Stability

time

over ?

Signal stable

Signal = Knew

Signal not

stable

K1 = Knew

Parameters:

To Time-out [xx s] (max. time for stability control)

Tt Dead time [xx s]

(Wait after gas switching)

Ti Integration time [xx,x s] (for K1, Knew)

Ts Stability time [xx s]

Tol. Tolerance [x,x % range]

2 - 12 AK 90003752(1) [AK-Commands] 10/98

Stability control

Stability controlled procedure of the zero/span calibration

Dead time Tt Time-out

Stability time Ts

2 * Deviation

Knew

Signal = Knew

Begin of

gas flow Begin of

stability

control

New begin

of stability

control

Calibration

Ti Ti

Dead time Stability

time Dead timeStability

time Stability

time

Begin of the

function SATK Average over Ti,

Read with AANG

Average over Ti,

Read with AAEG

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 13

Only for platform: SCAL – Control command "Start system calibration"

To control the system calibration procedures the commands "SCAL", "STBY" and "ASTZ"

have to be used. With "SCAL" the procedures will be started. For more exact description

of procedures see also the "documentation of system calibration".

Starting condition: All attached analyzer module are in the stand-by mode ("AK STBY")

and the variable "CALSTAT" is "0".

Otherwise the response is "BUSY" (BS).

Control command

SCAL Kx m (n)

Optional parameters

Type of system calibration

Function associated to channel x

Code

m Kx n

0 = ZERO-CAL K0 n = 1: switch into test mode

1 = ZERO/SPAN-CAL K0

2 = PROGRAM K0 else: switch into normal mode

3 = TEST ZERO-GAS K1...999 time-out in sec

4 = TEST SPAN-GAS1 K1...999 time-out in sec

5 = TEST SPAN-GAS2 K1...999 time-out in sec

6 = TEST SPAN-GAS3 K1...999 time-out in sec

7 = TEST SPAN-GAS4 K1...999 time-out in sec

8 = TEST CLOSE GASES K1...999 time-out in sec

If optional parameter "n" is not in the command string the appropriate variable will not be

changed.

2 - 14 AK 90003752(1) [AK-Commands] 10/98

Stop command

STBY K0

Function associated to the whole system unit

Code

Only using the channel number 0 (K0) will stop running "SYSCAL" procedure. Besides, all

procedures of the other analyzer modules will be stopped.

Response

SCAL 0

Error status

Code

Read command

ASTZ K0

Read of the whole FU

Code

With the command "ASTZ K0" it will be checked, if a system calibration is running or not.

"SCAL" will be sent back for a running system calibration. If no system calibration is

running this string will be missed.

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 15

SEGA – Control command "Spangas"

Starting this command the analyzers in a system or the single analyzer will switch on the

calibration valve to spangas and switch on the required pumps. This function will only

check the end point. It will not correct the calibration. If continuous line recorders will be

available, the paper transport will also be switched on.

Control command

SEGA K0

Function associated to the whole system unit

Code

SEGA K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SEGA 0

Error status

Code

2 - 16 AK 90003752(1) [AK-Commands] 10/98

SEMB – Control command "Set range"

Starting this command the analyzers in a system or the single analyzer will set the range

that is named in the data. If the function "Autoranging" is running at that moment, it will be

stopped and the named range will be selected.

Control command

SEMB K1 M4 Kn M2

Function associated to channel n range 2

Function associated to channel 1 range 4

Code

Response

SEMB 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 17

Only for CLD module: SENO/SNOX – Control command "Operation mode CLD"

Starting the command "SENO" the CLD analyzers in a system or the single CLD analyzer

will start the NO measurement. The command "SNOX" will start the NOx measurement.

Control command

SENO Kn

Function associated to channel n

Code for NO measurement

SNOX Kn

Function associated to channel n

Code for NOx measurement

Response

SENO 0

Error status

Code for NO measurement

SNOX 0

Error status

Code for NOx measurement

2 - 18 AK 90003752(1) [AK-Commands] 10/98

SFRZ – Control command "Decimal point setup for floating point format"

With this command the number of digits for real numbers will be setup. The real numbers

will be set to the number of relevant digits.

Standard setup: 6 relevant digits

This command will have an effect to the output of all real numbers. It is not possible to

vary it for different channels.

Control command

SFRZ K0 n

n = 2, ..., 8: Number of relevant digits

n = 1: Standard setup: 6 relevant digits

Function associated to the whole system unit

Code

Response

SFRZ 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 19

SGTS – Control command "Device test"

Starting this command the analyzers in a system or the single analyzer will switch off the

calibration gas and the samplegas. That means, all gas tubes to the analyzer device will

be closed and the pumps will be switched off. Then, the device can be checked via a gas

input that is located directly in front of the device.

Control command

SGTS K0

Function associated to the whole system unit

Code

SGTS K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SGTS 0

Error status

Code

2 - 20 AK 90003752(1) [AK-Commands] 10/98

SHDE – Control command "Hold status ON"

SHDA – Control command "Hold status OFF"

We have the possibility to activate the "Hold"-feature not only per calibration. We can do

this also by AK-Command "SHDE". With the command "SHDA" we have the possibility to

deactivate an activated "Hold" again. Starting the command "SHDE" will switch on the

"hold status". So it is possible to start the "Hold"-feature directly by AK command and not

only per calibration. With the "SHDA" command the "Hold status" will be deactivated.

Control command

SHDE K0

SHDA K0

Function associated to the whole system unit

Code

Response

SHDE 0

SHDA 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 21

SINT – Control command "Integrator"

Starting this command the FU will activate the internal integrators. The previous calculated

and stored integral averages will be set to zero. The integrator will calculate new integral

averages as long as the control command "SINT" will be received again. The result of the

integrator can be read with the command "AIKG".

Control command

SINT K0

Function associated to the whole system unit

Code

SINT K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SINT 0

Error status

Code

2 - 22 AK 90003752(1) [AK-Commands] 10/98

SLCH – Control command "Linearization check"

Starting this command the analyzers in a system or the single analyzer will switch on the

gas tubing to a gas distribution and a linearization procedure will run. The device will

record the correction values to the receiver specific raw curve. The deviations to the

correction values of the last determined linearization will be stored. Look at the command

"SLIN" for informations about the logic of the device control and of the gas distribution

control.

Control command

SLCH Kn Mn

Range n

Function associated to channel n

Code

Response

SLCH 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 23

SLIN – Control command "Linearization"

Starting this command the analyzers in a system or the single analyzer will switch on the

gas tubing to a gas distribution. A linearization procedure for the selected range will run.

The device will record the determined correction values to the receiver specific raw curve.

The values will be stored in the device to calculate the gas concentration. This procedure

will be controlled by several commands of the TBCC or the system. The device or the gas

distribution will only accept those commands, it they have already received the "SLIN"

command. The "SLIN" command prepares the device or the gas distribution to receive

and execute further commands being necessary for the linearization procedure. The

spangas concentration has to be set up before by the "EKAK" command.

Control command

SLIN Kn Mn

Range n

Function associated to channel n

Code

Response

SLIN 0

Error status

Code

2 - 24 AK 90003752(1) [AK-Commands] 10/98

SLST – Control command "Set linearization step"

Starting this command the gas distribution will switch on the named distribution step. The

device will work like described for the commands "SLIN" or "SLCH" depending on the

current procedure. The device will only accept the "SLST" command, if the commands

"SLIN" or "SLCH" were received before followed by the command "ELST".

Control command

SLST K1 n

Distribution step

Function associated to channel 1

Code

Response

SLST 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 25

SMAN – Control command "Operation mode MANUAL"

With this command the FU will change to the operation mode "Manual". Then it will only

be possible to start functions from an operating unit integrated in the FU. The same

operation mode will be enabled, if the service switch of the FU will be in the position

"Remote Disable". In that mode it will only be possible to answer to read commands of the

TBCC.

Control command

SMAN K0

Function associated to the whole system unit

Code

SMAN K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SMAN 0

Error status

Code

2 - 26 AK 90003752(1) [AK-Commands] 10/98

SMGA – Control command "Samplegas"

Starting this command the analyzers in a system or the single analyzer will switch on the

sample gas valve and the pumps necessary for the samplegas transport. If continuous line

recorders will be available, the paper transport will also be switched on.

Control command

SMGA K0

Function associated to the whole system unit

Code

SMGA K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SMGA 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 27

SNAB – Control command "Zerogas calibration"

Starting this command the analyzers in a system or the single analyzer will start a zerogas

calibration. The calibration gas flow will start automatically and the calibration procedure

will run. After this procedure will be over the system, the analyzer in a system or the single

analyzer will change to the stand-by mode. The running calibration procedure can be

canceled with the "STBY" command.

Control command

SNAB K0

Function associated to the whole system unit

Code

SNAB K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SNAB 0

Error status

Code

2 - 28 AK 90003752(1) [AK-Commands] 10/98

SNGA – Control command "Zerogas"

Starting this command the analyzers in a system or the single analyzer will switch on the

zerogas valve and the pumps necessary for the zerogas transport. This function will only

check the zero point. It will not correct the calibration. If continuous line recorders will be

available, the paper transport will also be switched on.

Control command

SNGA K0

Function associated to the whole system unit

Code

SNGA K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SNGA 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 29

SPAB – Control command "Spangas calibration"

Starting this command the analyzers in a system or the single analyzer will start a spangas

calibration. The calibration gas flow will start automatically and the calibration procedure

will run. After this procedure will be over the system, the analyzer in a system or the single

analyzer will change to the stand-by mode. The running calibration procedure can be

canceled with the "STBY" command.

Control command

SPAB K0

Function associated to the whole system unit

Code

SPAB K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SPAB 0

Error status

Code

2 - 30 AK 90003752(1) [AK-Commands] 10/98

SPAU – Control command "Pause"

With this command the FU will be set to a defined status of interruption. This command

will only be accepted, if the FU is already in the stand-by mode. The "SPAU" command

will switch off the operation modes (e.g. FID flame, pump of an NO device) or the

corresponding setpoints (e.g. temperature of the hot pipe). With the control command

„Reset“ or „Stand-by“ the FU will change to the stand-by mode to get ready for operation.

The real functionality of the "SPAU" command will depend on the used FU. It is part of

each device or system specification.

Control command

SPAU K0

Function associated to the whole system unit

Code

SPAU Kn

Function associated to channel n

Code

Response

SPAU 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 31

SQEF – Control command "Cross interference"

Starting this command the CO analyzer will measure wet C02. It will be produced by

streaming three percent C02 through water bottles at 20 degrees Celsius. The CO

analyzer will measure this gas mixture. The signal will be stored in the analyzer. It can be

read by the TBCC with the "AQEF" command. The measured concentration has to be

maximum 3 ppm for ranges smaller than 300 ppm. For bigger ranges it has to be

maximum 1 % of the end of range value. These limits will be controlled by the TBCC.

Control command

SQEF Kn

Function associated to channel n

Code

Response

SQEF 0

Error status

Code

2 - 32 AK 90003752(1) [AK-Commands] 10/98

SREM – Control command "Remote"

With this command the FU will change to the computing operation mode. Then, the

function start will only be possible by the TBCC. This operation mode may only be set, if

the service switch of the FU is in the position "Remote Enable".

Control command

SREM K0

Function associated to the whole system unit

Code

SREM K1 Kn

Function associated to channel n

Function associated to channel 1

Code

Response

SREM 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 33

SRES – Control command "Reset"

With this command the FU will get a software reset. This command has the same effect to

the FU like the switching off and on of the power supply. All running procedures will be

canceled. An initializing will be started, e.g. check and control of temperature setpoints.

After that the operation modes "Manual" and "Stand-by" will be enabled.

Control command

SRES K0

Function associated to the whole system unit

Code

SRES Kn

Function associated to channel n

Code

Response

SRES 0

Error status

Code

2 - 34 AK 90003752(1) [AK-Commands] 10/98

SRON –Control command "Delay modus ON"

SROF –Control command "Delay modus OFF"

Starting this command the analyzers in a system or the single analyzer will determine

measurement and integral values (averages), that will be delayed according to the delay

time of the write command "EVEZ". The read commands "AKON", "AIKO" and "AIKG" will

get an old value according to the synchronization time of the command "EVEZ". The

analog output will get the same delay. With the command "Delay modus OFF" the

integrators will start immediately and the measurement and integral values will be

determined and sent out without delay.

Control command

SRON K0

SROF K0

Function associated to the whole system unit

Code

SRON Kn

SROF Kn

Function associated to channel n

Code

Response

SRON 0

SROF 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 35

SSPL – Control command "Purging"

Starting this command the analyzers in a system or the single analyzer will switch on the

purge gas valve and the pumps necessary for the purge gas transport.

This function can be finished either by a new command or by a defined time interval. After

the purging will be over the system, the analyzer in a system or the single analyzer will

change to the stand-by mode.

Control command

SSPL K0

Function associated to the whole system unit

Code

SSPL Kn

Function associated to channel n

Code

Response

SSPL 0

Error status

Code

2 - 36 AK 90003752(1) [AK-Commands] 10/98

ST9O – Control command "Set t90 time step"

With this command the analyzer will use the t90 time according to the current step. The

abbreviation "S" means fast time, "M" means medium time and "L" means slow time. After

the switching on of the device or after a "Reset" the fastest time will be set.

Control command

ST9O K1 S

Function associated to channel 1, fast time

Code

Response

ST9O 0

Error status

Code

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90003752(1) [AK-Commands] 10/98 AK 2 - 37

STBY – Control command "Stand-by"

With the command "Stand-by" the FU will be set to a defined status of interruption.

Running functions like measuring or purging will be canceled. Then, the stand-by mode

will be enabled. The ranges will keep selected. The FU will get ready for measurement

and operating, no matter which mode was the previous.

Control command

STBY Kn

Function associated to the whole system unit

Code

Response

STBY 0

Error status

Code

2 - 38 AK 90003752(1) [AK-Commands] 10/98

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90003752(1) [AK-Commands] 10/98 AK 2 - 39

4. Description of all Read Commands

AAEG – Read command "Deviation to spangas"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The measured and stored signal of the last spangas measurement.

∗ The deviation from the setpoint value of the linearized curve in ppm and percent,

referred to the end of range value.

Spangas measurement: Signal after the end of the functions "Automatic calibration" or

"Spangas", stability controlled or time controlled depending on the setup in "EFDA".

Read command

AAEG K0

AAEG Kn

Read of the whole system unit

Code

Response

AAEG 0 M1 XXX YYY ZZ ... Mn XXX YYY ZZ

Deviation [%]

Deviation [ppm]

Signal [ppm]

Range n

Deviation [%]

Deviation [ppm]

Signal [ppm]

Range 1

Error status

Code

The values will get the same format for the read of single channels.

2 - 40 AK 90003752(1) [AK-Commands] 10/98

AALI – Read command "Deviations of the last linearization check with spangas"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device) and subchannel (range):

∗ The determined and stored deviations in ppm of the last linearization check with

spangas.

Read command

AALI Kn Mx

Read of channel n and range x

Code

Response

AALI 0 AAA BBB ...... XXX

xth difference

2nd difference

1st difference

Error status

Code

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90003752(1) [AK-Commands] 10/98 AK 2 - 41

AANG – Read command "Deviation to zerogas"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The determined and stored signal of the last zerogas measurement with its range.

∗ The deviation from the setpoint value of the linearized curve in ppm and percent,

referred to the end of range value.

Zerogas measurement: Signal after the end of the functions "Automatic calibration" or

"Zerogas", stability controlled or time controlled depending on the setup in "EFDA".

Read command

AANG K0

AANG Kn

Read of the whole system unit

Code

Response

AANG 0 M1 XXX YYY ZZ ... Mn XXX YYY ZZ

Deviation [%]

Deviation [ppm]

Signal [ppm]

Range n

Deviation [%]

Deviation [ppm]

Signal [ppm]

Range 1

Error status

Code

The values will get the same format for the read of single channels.

2 - 42 AK 90003752(1) [AK-Commands] 10/98

ABST – Read command "Counter of operating hours"

To this read command the FU will send to the TBCC the following data:

∗ The operating hours until now for the roots fan, the turbo compressor, the sampling

pumps etc. The operating hours will only be sent as integers.

Read command

ABST K0

Read of the whole system unit

Code

Response

ABST 0 T1 T2 ... Tn

Value of each hour of operation

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 43

ADRU – Read command "Pressure"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device) and if need be for the subchannel

(pressure measurement):

∗ The signal in Pascal.

Note: At the moment no subchannels will be used.

Read command

ADRU K0

ADRU Kn (m)

Read of channel n (and subchannel m)

Code

Response

ADRU 0 XXX

Pressure value

Error status

Code

2 - 44 AK 90003752(1) [AK-Commands] 10/98

ADUF – Read command "Flow"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device) and subchannel (flow

measurement):

∗ The signal in liter per time unit.

Read command

ADUF K0

ADUF Kn (m)

Read of channel n (and subchannel m)

Code

Response

ADUF 0 XXX

Flow value

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 45

AEMB – Read command "Selected range"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The selected and used range at this moment.

Read command

AEMB K0

AEMB Kn

Read of channel n

Code

Response

AEMB 0 Mn

Range with setup

Error status

Code

2 - 46 AK 90003752(1) [AK-Commands] 10/98

AFDA – Read command "Function length"

To this read command the FU will send to the TBCC the following data for the called

channel (device):

∗ The function or procedure times of the function determined in "CODE".

Functions like "SATK", "SLIN", "SLCH", "SALI", "SQEF", "SNGA" or "SEGA" will run time

controlled according to the times T1 to T4 or stability controlled.

Time control: If only T1 is set or if T2 = 0, time control will run with step time T1

(total function time).

Stability control: Times T1 to T4 have to be set.

Read command

AFDA K0 CODE

AFDA Kn CODE

Code for the function

Read of channel n

Code

Response

AFDA 0 T1 (T2 T3 T4)

"Time out"; after this time is over, the procedure will be

canceled and you will get an error message; this time will

start after the wait.

Integration time to get the mean value of one signal.

Stability time: All signals have to be in a certain tolerance

during this time.

Time to wait for: after the switching on resp. changing of

gases or the stepping time of time control.

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 47

AGID – Read command "Device identification"

To this read command the gas analyzer will send to the TBCC a text string consisting of

several data. These data will be separated by a slash ( / ).

Read command

AGID K0

Read of the whole system unit

Code

Response

AGID 0 a/b/c

Device identification a = Name and serial number

b = Program version

c = Date

Error status

Code

2 - 48 AK 90003752(1) [AK-Commands] 10/98

AGRW – Read command "Limits"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The corresponding limits, e.g. maximum deviations of calibration.

Read command

AGRW K0 m

AGRW Kn m

Read of channel n and subchannel m

m = 0: Zerogas calibration

m = 1: Spangas calibration

Code

Response

AGRW 0 XXX

Limit

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 49

AIKG – Read command "Concentration integral value; all"

To this read command the FU will send to the TBCC the following data:

∗ The corrected average signal valid at that moment (e.g. analyzed value), that has been

calculated since the last "SINT" command. The physical parameter is described in the

section about FU. The value will be limited to six relevant digits, because it is useless to

send gas concentrations in an accuracy less than pars pro mille. Look at the example of

the "AKON" command !

Cf. the "SFRZ" command !

Read command

AIKG K0

Read of the whole system unit

Code

AIKG K1 ... Kn

Read of channel n

Read of channel 1

Code

2 - 50 AK 90003752(1) [AK-Commands] 10/98

Response

AIKG 0 123400 12340 1234 123.4 12.34 -1.23 #

Channel 7 no signal,

invalid or range

overflow/underflow

Channel 6 negative value

1 digit before/ 2 digits after

decimal point.

Channel 5 positive value

2 digit before / 2 digits after

decimal point.

Channel 4 positive value

3 digits before / 1 digit after

decimal point.

Channel 3 positive value

4 digits

Channel 2 positive value

5 digits

Channel 1 positive value

6 digits

Error status

Code

The values will get the same format for the read of single channels.

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 51

AIKO – Read command "Concentration integral value"

To this read command the FU will send to the TBCC the following data:

∗ The corrected average signal valid at that moment (e.g. analyzed value), that has been

calculated since the last "SINT" command resp. the last "AIKO" command. The physical

parameter is described in the section about FU. The value will be limited to six relevant

digits, because it is useless to send gas concentrations in an accuracy less than pars

pro mille. Look at the example of the "AKON" command !

Read command

AIKO K0

Read of the whole system unit

Code

AIKO K1 ... Kn

Read of channel n

Read of channel 1

Code

2 - 52 AK 90003752(1) [AK-Commands] 10/98

Response

AIKO 0 123400 12340 1234 123.4 12.34 -1.23 #

Channel 7 no signal,

invalid or range

overflow/underflow

Channel 6 negative value

1 digit before/ 2 digits after

decimal point.

Channel 5 positive value

2 digit before / 2 digits after

decimal point.

Channel 4 positive value

3 digits before / 1 digit after

decimal point.

Channel 3 positive value

4 digits

Channel 2 positive value

5 digits

Channel 1 positive value

6 digits

Error status

Code

The values will get the same format for the read of single channels.

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 53

AKAK – Read command "Calibration gas concentration"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device) and range:

∗ The calibration gas concentration in ppm.

Read command

AKAK Kn [Mx]

Range number (optional); x = 1, 2, 3, 4

Output of all ranges,

if no range is named.

Read of channel n

Code

Response

AKAK 0 M1 XXX M2 XXX ... Mn ZZZ

Concentration of calibration gas

Range n

Concentration of calibration gas

Range 2

Concentration of calibration gas

Range 1

Error status

Code

The values will get the same format for the read of single ranges.

2 - 54 AK 90003752(1) [AK-Commands] 10/98

AKAL – Read command "Stored calibration corrections"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The corrections in ppm determined and stored during the last calibration. These

corrections are also necessary to calculate the analyzer values (deviations from the

linearized curve).

∗ The sum of deviations (total correction) to the calibration before the last linearization

check for the last range calibrated with zero and spangas.

Read command

AKAL K0 [Mx]

AKAL Kn [Mx]

Range number (optional); x = 1, 2, 3, 4

Output of all ranges,

if no range is named.

Read of channel n

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 55

Response

AKAL 0 M1 aaa kk AAA KK ..... Mn xxx ff XXX FF

Deviation of the

final point value

Correction for the

final point

Deviation of the

zero value

Correction for the

zero point

nth range

Deviation of the

final point value

Correction for the

final point

Deviation of the

zero value

Correction for the

zero point

1st range

Error status

Code

2 - 56 AK 90003752(1) [AK-Commands] 10/98

AKEN – Read command "Device tag"

To this read command the FU will send to the TBCC the tag for the called channel

(device).

Read command

AKEN K0

AKEN Kn

Read of channel n

Code

Response

AKEN 0 XXX..X

Device tag

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 57

AKFG – Read command "Configuration of the system"

To this read command the system will send to the TBCC the following data:

∗ The adjustment about the channels (analyzers or virtual channels) that are expected to

send the current signals and the corresponding sequence.

∗ The channels that can be called with the total channel command "K0". That means:

Which devices can be included with "K0" or "KV Ln" to operation modes like measuring,

zerogas and spangas.

∗ Which channel will analyze which chemical component.

∗ The sequence in which the signals of analyzers or calculated values from virtual

channels will be sent to the total channel read command "K0" or "KV Ln". This

information will be done by the string "XYZ" standing for each component, e.g. C0, N0,

NOx, BRETT (Lambda according to Brettschneider) etc.

Read command

AKFG K0

AKFG KV Ln

Read of the whole system unit resp.

some defined lines

Code

Response

AKFG 0 XYZ Kn XYZ Km XYZ Kx

Selected channel x, component XYZ

Selected channel m, component XYZ

Selected channel n, component XYZ

Error status

Code

2 - 58 AK 90003752(1) [AK-Commands] 10/98

AKON – Read command "Signal" (measured concentration value)

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data:

∗ The corrected signal (concentration value) valid at that moment. Normally the physical

unit is ppm. The value will be limited to six relevant digits, because it is useless to send

gas concentrations in an accuracy less than pars pro mille.

Example for four relevant digits (default: six digits):

measured

conc. [ppm] sent

conc. [ppm]

123456 123500

12356 12360

1234.4 1234

123.45 123.5

12.56 12.56

1.23 1.23

Cf. the "SFRZ" command !

Read command

AKON K0

Read of the whole system unit

Code

AKON K1 .... Kn

Read of channel n

Read of channel 1

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 59

Response

AKON 0 123400 12340 1234 123.4 12.34 -1.23 #

Channel 7 no signal,

invalid or range

overflow/underflow

Channel 6 negative value

1 digit before/ 2 digits after

decimal point.

Channel 5 positive value

2 digit before / 2 digits after

decimal point.

Channel 4 positive value

3 digits before / 1 digit after

decimal point.

Channel 3 positive value

4 digits

Channel 2 positive value

5 digits

Channel 1 positive value

6 digits

Error status

Code

The values will get the same format for the read of single channels.

2 - 60 AK 90003752(1) [AK-Commands] 10/98

AKOW – Read command "Correction for zerogas calibration and gradient"

To this read command each analyzer in a system or the single analyzer will send to the

TBCC the following data:

∗ The correction of the last zero calibration and the gradient of the calibration curve.

Read command

AKOW K0 Mx

AKOW Kn Mx

Read of channel n range x

Code

Response

AKOW 0 XXX YYY

Steepness of the calibration curve

Correction of the zero calibration

Error status

Code

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90003752(1) [AK-Commands] 10/98 AK 2 - 61

ALCH – Read command "Deviations of the last linearization check"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device) and subchannel (range):

∗ The determined and stored deviations of the last linearization check in ppm.

∗ The information if these deviations will be in the lawful tolerances. That means: Is the

check o.k. or not ?

Read command

ALCH Kn Mx

Read of channel n and range x

Code

Response

ALCH 0 IO AAA BBB ... XXX

xth difference

2nd difference

1st difference

Checked result is o.k. (otherwise NO)

Error status

Code

2 - 62 AK 90003752(1) [AK-Commands] 10/98

Only for MLT analyzers: ALIK – Read command "Output of the linearization curve"

To this read command the x/y values of the linearization curve will be sent. With this

values can be determined the desired segment of the linearization curve and the interval

between the function values.

Read command

ALIK Kn a b c

Interval between the function values [ppm]

End concentration of the segment [ppm]

Beginning concentration of the segment [ppm]

Read of channel n

Only one channel can be checked (no K0).

Code

Response

ALIK s y1 x1 y2 x2 y3 x3...

Raw value No. 3

Setpoint value No. 3

Raw value No. 2

Setpoint value No. 2

Raw value No. 1

Setpoint value No. 1

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 63

ALIN – Read command "Linearization values" (X/Y = Setpoint / Raw value)

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device) and subchannel (range):

∗ The determined and stored setpoint/raw values of the last linearization.

Read command

ALIN Kn [Mx]

This information is optional. It will not be evaluated, because

the values are valid for all ranges.

Read of channel n and range x

Code

Response

ALIN 0 aaa AAA bbb BBB ...... xxx XXX

nth pair of values

2nd pair of values

1st pair of values

Error status

Code

2 - 64 AK 90003752(1) [AK-Commands] 10/98

ALKO – Read command "Polynomial coefficients of the linearization curve"

The coefficients of the linearization polynomial calculated by the analyzer linearization will

be transferred. These coefficients will be enabled using the polynomial method to

linearize.

Read command

ALKO Kn Mm

Read of channel n and range m

Code

Response

ALKO 0 Mm a0 a1 a2 a3...

Coefficients of the polynomial

Range m

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

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ALST – Read command "Linearization steps"

To this read command the gas distribution will send to the TBCC or to the system the

following data:

∗ The numbers and the division in percent of the distribution steps (maximum two digits

after decimal point).

This command will only be accepted by the gas distribution, if the commands "SLIN" or

"SLCH" have been received before.

Read command

ALST Kn

Read of the gas distribution

Code

Response

ALST 0 1 XY 2 XY ... n XY

Last distribution step n, division XY %

2nd distribution step, division XY %

1st distribution step, division XY %

Error status

Code

2 - 66 AK 90003752(1) [AK-Commands] 10/98

AM90 – Read command "Actual response time (t90)"

To this read command the analyzer will send the t90 time in seconds that is enabled to

calculate the concentration for the called channel at the moment.

Cf. "AT90", "ET90", "ST90" and "EM90"

Read command

AM90 Kn

Read of channel n

Code

Response

AM90 0 a

t90 time (response time) [s]

Error status

Code

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AMBA – Read command "Begin of range"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The begin of range values in ppm.

Read command

AMBA K0 [Mx]

AMBA Kn [Mx]

Range number (optional)

Read of channel n

Code

Response

AMBA 0 Mx XXX

Begin of range x

Range No. x

Error status

Code

The values will get the same format for the read of single channels.

2 - 68 AK 90003752(1) [AK-Commands] 10/98

AMBE – Read command "End of range"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The end of range values in ppm.

Read command

AMBE K0 [Mx]

AMBE Kn [Mx]

Range number (optional)

Read of channel n

Code

Response

AMBE 0 Mx XXX

End of range x

Range No. x

Error status

Code

The values will get the same format for the read of single channels.

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AMBU – Read command "Switching values for autoranging"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The adjusted switching values in ppm for a changing of ranges with autoranging.

Read command

AMBU K0

AMBU Kn

Read of channel n

Code

Response

AMBU 0 M1 xxx XXX M2 yyy YYY Mn zzz ZZZ

Switch on value of range n

Switch off value of range n

Range No. n

Switch on value of range 2

Switch off value of range 2

Range No. 2

Switch on value of range 1

Switch off value of range 1

Range No. 1

Error status

Code

The values will get the same format for the read of single channels.

2 - 70 AK 90003752(1) [AK-Commands] 10/98

AMDR – Read command "Manual adjusted pressure"

To this read command the gas analyzer will send the value adjusted for the parameter.

This value will be useful, if no pressure measurement will be installed in the analyzer.

Read command

AMDR Kn

Read of channel n

Code

Response

AMDR 0 a

Pressure [Pa]

Error status

Code

The values will get the same format for the read of single channels.

II) V24/RS232/485 Interface - Single Analyzers and Systems

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AQEF – Read command "Cross interference"

To this read command the CO analyzer or the system will send to the TBCC:

∗ The concentration value in ppm determined and stored in the analyzer. This value will

be stored in the device until a new cross interference will be determined by the "SQEF"

command. The TBCC will control, if limits will be exceeded. The TBCC will also start

actions if necessary.

Read command

AQEF Kn

Read of channel n

Code

Response

AQEF 0 XXX

Interference [ppm]

Error status

Code

2 - 72 AK 90003752(1) [AK-Commands] 10/98

ASOL – Read command "Setpoint value with limits"

To this read command the FU will send to the TBCC the following data for the called

channel (FU) and subchannel (e.g. heating):

∗ The adjusted setpoints with deviation limits for error reports.

For the actual used devices subchannel "m" will be:

m = 0 Concentration

m = 1 Temperature

m = 2 Pressure

m = 3 Flow

m = 4 Pocket calculator No. 1

m = 5 Pocket calculator No. 2

m = 6 Pocket calculator No. 3

m = 7 Pocket calculator No. 4

These assignations may be changed for devices used in the future !

Read command

ASOL K0 m

ASOL Kn m

Read of channel n and subchannel m

Code

Response

ASOL 0 WWW xxx XXX

Upper limit

Lower limit

Setpoint value

Error status

Code

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90003752(1) [AK-Commands] 10/98 AK 2 - 73

ASTA – Read command "General status of the system"

To this read command the FU will send to the TBCC:

∗ All channels of the FU with any error in their status at that moment. A detailed

description of the errors will not be sent to this read command. It is only possible to

read channel No. 0.

Read command

ASTA K0

Read of channel zero

Code

Response

ASTA 7 K1 K4 Kn

Channel n with error status

Channel 4 with error status

Channel 1 with error status

Error status

Code

2 - 74 AK 90003752(1) [AK-Commands] 10/98

ASTF – Read command "Error status"

To this read command the FU will send to the TBCC:

∗ All error existing at that moment in the called channel (FU). The description of the error

characterization is specific for each device. It will be symbolized with a number. A

reading to "K0" will get the errors of devices that are not assigned to single channels

(e.g. samplegas cooler).

Read command

ASTF Kn

Read of channel n

Code

Response

ASTF 7 XXX YYY ... NNN

nth error number

2nd error number

1st error number

Error status

Code

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90003752(1) [AK-Commands] 10/98 AK 2 - 75

TTypical meanings of errors for certain devices:

NDIR/NDUV Analyzers

No. 1=Flow error

No. 2=Chopper failure

No. 3=Thermostat failure

No. 4=RAM error

No. 5=Calibration error zerogas

No. 6=Calibration error spangas

No. 7=Range overflow

No. 8=External error (digital input)

No. 9=Error of pressure measurement

No.10 =Error of temperature measurement

TFID Analyzers

No. 1=Flow error

No. 2=Flame out

No. 3=Thermostat failure

No. 4=RAM error

No. 5=Calibration error zerogas

No. 6=Calibration error spangas

No. 7=Range overflow

No. 8=Fuel gas error

No. 9=Fuel air error

No.10 =H2 generator failure (optional H2 generators, if available)

No.11 =Temperature of the heated wires

No.12 =Temperature of the heated filters

No.13 =Response of ethane too high (optional for methane free measurement)

2 - 76 AK 90003752(1) [AK-Commands] 10/98

ASTZ – Read command "Status"

To this read command the FU will send to the TBCC the following data for the called

channel (FU):

∗ The device status at that moment

∗ Running procedures.

The status will be described by the code used for the activation of the function. The

operation modes "REMOTE" or "MANUAL" will also be sent. These modes will always be

the first codes in the data string. To the read of channel 0 the statuses of all channels (FU)

defined with "EKFG" will be sent. If a defined FU will be defect or not available and it

cannot send its status, the statuses of these channels (FU) will be replaced by "#",

analogous to the values like described for "AKON".

Read command

ASTZ K0

ASTZ Kn

Read of channel n

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 77

Response

ASTZ 0 KV SREM CODEn K1 SREM CODEn K2 # Kn SREM CODEn

SMAN SMAN SMAN

Status code

Channel n and

its status

Device is not

available

Channel 2 and

its status

Status code

Channel 1 and

its status

Status code

Channel 0 and

its status

Error status

Code

ASTZ 0 Kn SREM CODEn

SMAN

Status code

Channel n and its status

Error status

Code

2 - 78 AK 90003752(1) [AK-Commands] 10/98

ASYZ – Read command "System time"

To this read command the FU will send to the TBCC the following data for the called

channel (device):

∗ The current system time (calendar time).

Read command

ASYZ Kn

Read of channel n

Code

Response

ASYZ 0 JJMMTT hhmmss

Time of the system

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 79

AT9O – Read command "T90 time" (response time)

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The t90 time steps.

Read command

AT9O K0

AT9O Kn

Read of channel n

Code

Response

AT9O 0 XXX YYY ZZZ

T90 time (fast)

T90 time (medium)

T90 time (slowly)

Error status

Code

2 - 80 AK 90003752(1) [AK-Commands] 10/98

ATEM Read command "Temperature"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device) and subchannel (temperature

measurement):

∗ The signal in Kelvin.

Read command

ATEM K0 (m)

ATEM Kn (m)

Read of channel n (and subchannel m).

Note: Subchannel m is not in use at the moment.

Code

Response

ATEM 0 XXX

Temperature

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 81

ATOL – Read command "Stability tolerances"

To this read command the analyzers in a system, the single analyzer or the front-end

computer will send to the TBCC the following data:

∗ The necessary tolerances for functions running stability controlled.

Read command

ATOL Kn [Mx]

Range number (optional)

Read of channel n

Code

Response

ATOL 0 Mm Tnm

Tolerance of channel n

Range m as percent of end of range

Error status

Code

2 - 82 AK 90003752(1) [AK-Commands] 10/98

AUKA – Read command "Uncorrected analog value"

To this read command the called analyzer in a system or the single analyzer will send to

the TBCC the following data:

∗ The uncorrected analog output value in Volt and the corresponding range.

Read command

AUKA K0

AUKA Kn

Read of channel n

Code

Response

AUKA 0 Mn XXX

Uncorrected analog value

Range n

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 83

AVEZ – Read command "Delay and synchronization time"

To this read command the analyzers in a system or the single analyzer will send to the

TBCC the following data for the called channel (device):

∗ The delay time used for the record of valid signals or used to start the integrators by

"SINT".

∗ The synchronization time used for the output of values from an internal buffer that were

read by "AKON", "AIKO" and "AIKG". This synchronization time is also the delay time

for the output signal of those values.

This procedure will be started with the control command "SRON" and will be finished with

the control command "SROF".

Read command

AVEZ K0

AVEZ Kn

Read of channel n

Code

Response

AVEZ 0 XXX YYY

Time of synchronization

Delay time

Error status

Code

2 - 84 AK 90003752(1) [AK-Commands] 10/98

AZEI – Read command "Times"

To this read command the FU will send to the TBCC the following data for the called

channel (FU):

∗ The times used to start a function or procedure, e.g. times for the automatic start of a

calibration.

Read command

AZEI Kn CODE

Code of the function

Read of channel n

Code

The following codes will be supported:

SNAB, SPAB, SATK, SNGA, SEGA, SQEF, SSPL, SALI, SMGA

Response

AZEI 0 JJMMTT hhmmss T-0

Function length

Start time

Start date

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 85

5. Description of all Write Commands

EFDA – Write command "Function length"

With this write command the FU will get the function length of the function "SXXX" in

seconds for the called channel (device), e.g. "Time Out" for purging or for switching on the

calibration gases. If the function "SXXX" will be a procedure with several internal steps,

the times will be valid for each step and not for the whole procedure. If the function will be

for instance "Automatic calibration", the times will be valid for each spangas resp. each

range and not for the whole procedure. During this time of flow the analyzer will test, if the

setpoint value will be reached and stable. If this test will not succeed during the function

time, it will produce a function error. The same effect will exist for other procedures like

linearization, converter test etc. If the function length will be set to zero, the function will

run without any time limit.

Functions like "SATK", "SLIN", "SLCH", "SALI", "SQEF", "SNGA" or "SEGA" will run time

controlled according to the times T1 to T4 or stability controlled.

Time control: If only T1 is set or if T2 = 0, time control will run with step time T1

(total function time).

Stability control: Times T1 to T4 have to be set.

Write command

EFDA Kn SXXX T1 (T2 T3 T4)

"Time out"; after this time is over, the procedure

will be canceled and you will get an error message;

this time will start after the wait.

Integration time to get the mean value of one signal.

Stability time: All signals have to be in a certain

tolerance during this time.

Time to wait for: after the switching on / changing

of gases or the stepping time of time control.

Function

Addressed channel

Code

2 - 86 AK 90003752(1) [AK-Commands] 10/98

Response

EFDA 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 87

EGRW – Write command "Limit"

With this write command the analyzers in a system or the single analyzer will get the

required limits for the called channel (device), e.g. maximum deviation for calibration. If

these limits will be exceeded during the operation, it will cause a changing of the error

status byte. – The unit of limits is percent. The deviation value is referred to the setpoint.

For zero calibration the deviation value will be referred to the smallest spangas value.

Write command

EGRW Kn m XXX

Limit

Addressed subchannel m

m = 0: zero calibration; m = 1: spangas calibration

Addressed channel n

Code

Response

EGRW 0

Error status

Code

2 - 88 AK 90003752(1) [AK-Commands] 10/98

EKAK – Write command "Calibration gas concentration"

With this write command the analyzers in a system or the single analyzer will get the

spangas values for each range.

Write command

EKAK K0 M1 YYYY ... Mx ZZZZ

EKAK Kn M1 YYYY ... Mx ZZZZ

Spangas value

Addressed range x

Spangas value

Addressed range 1

Addressed channel n

Code

Response

EKAK 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 89

EKEN – Write command "Device tag"

With this write command the FU will get a tag to store in the FU memory. Then it will have

to be unchangeable. That means, if this part of memory will be written, the device

processor will have to save it against an overwriting automatically. The setup of a new tag

will only be possible by changing the processor.

The memory size for the tag is 30 ASCII characters.

Write command

EKEN Kn TAG

Data of the device tag

Read of channel n

Code

Response

EKEN 0

Error status

Code

2 - 90 AK 90003752(1) [AK-Commands] 10/98

EKFG – Write command "Configuration of the system"

With this write command the FU will get the channels (analyzers) sending the current

signals and their sequence. Furthermore the FU will get the channels that should be called

with the total channel command "K0" or "KV Ln", i.e. the channels that shall be included to

operation modes like measurement, zerogas and spangas. With the string XYZ the FU will

be told which chemical component or virtual device (e.g. Lambda) shall be combined with

which channel. The string XYZ will be for instance C0, N0, Nox or BRETT (Lambda

according to Brettschneider) etc. The other physical or virtual channels can only be called

directly with their channel number.

If no component and no channel number will be specified, the FU will get its default confi-

guration of the system. That means, that all physical and virtual available components will

be included to the read and control commands with the total channel command "K0" or

"KV Ln". Besides, the TBCC can get the real physical composition of the FU with the read

command "AKFG".

Write command

EKFG K0 XYZ Kn XYZ Km XYZ Kx

Adjusted channel x, component XYZ

Adjusted channel m, component XYZ

Adjusted channel n, component XYZ

Addressed channel 0

Code

EKFG KV Ln Kn ... Kx

Adjusted channel n to x

Lines getting assigned with adjusted

channels

Addressed channel; front-end computer

Code

Response

EKFG 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 91

ELIN – Write command "Linearization values (X/Y)"

With this write command the analyzers in a system or the single analyzer will get the

linearization values for the calculation of gas concentration for the called channel (device)

and subchannel (range). A new linearization curve will be calculated with these x/y-pairs.

Write command

ELIN Kn Mx aaa AAA bbb BBB ... xxx XXX

nth pair of values

2nd pair of values

1st pair of values

Addressed channel n

and range x

Code

Response

ELIN 0

Error status

Code

2 - 92 AK 90003752(1) [AK-Commands] 10/98

ELKO – Write command "Polynomial coefficients of the linearization curve"

The coefficients of a linearization polynomial will be transferred to the analyzer. These

values will then be enabled to calculate the gas concentration using the polynomial

method for linearization.

Write command

ELKO Kn a0 a1 a2 a3...

Polynomial coefficients

Read of channel n

Code

Response

ELKO 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 93

ELST – Write command "Linearization steps"

With this write command the device will get the numbers of the distribution steps and each

division in percent of the gas distribution used for linearization. But this command will only

be accepted, if the commands "SLIN" or "SLCH" were received before.

Write command

ELST Kn 1 XY 2 XY ... n XY

Last distribution step, division XY %

2nd distribution step, division XY %

1st distribution step, division XY %

Addressed channel n

Code

Response

ELST 0

Error status

Code

2 - 94 AK 90003752(1) [AK-Commands] 10/98

EMBA – Write command "Begin of range"

With this write command the analyzers in a system or the single analyzer will get each

begin of range of the total range in ppm. The analog output signal will be referred to these

values for instance.

Write command

EMBA Kn M1 YYYY [... Mx ZZZZ]

Begin of range x (optional)

Addressed range x (optional)

Begin of range 1

Addressed range 1

Addressed channel n

Code

Response

EMBA 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 95

EMBE – Write command "End of range"

With this write command the analyzers in a system or the single analyzer will get each end

of range of the total range in ppm. The analog output signal will be referred to these

values for instance.

Write command

EMBE Kn M1 YYYY [... Mx ZZZZ]

End of range x (optional)

Addressed range x (optional)

End of range 1

Addressed range 1

Addressed channel n

Code

Response

EMBE 0

Error status

Code

2 - 96 AK 90003752(1) [AK-Commands] 10/98

EMBU – Write command "Switch levels for autoranging"

With this write command the analyzers in a system or the single analyzer will get for the

called channel (device):

∗ The required values in ppm to switch from one range to another with autoranging.

Write command

EMBU Kn Mn XXX YYY [Mm XXX YYY ...] (optional)

Switching value to change to the bigger range

Switching value to change to the smaller range

Range n

Addressed channel n

Code

Response

EMBU 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 97

EMDR – Write command "Manual adjusted pressure"

With this write command the analyzer will get a pressure value for the called channel. This

value will be used as pressure correction, if no pressure measurement is installed in the

device.

Cf. "AMDR", "ADRU" !

Write command

EMDR Kn a

Pressure in Pa

Read of channel n

Code

Response

EMDR 0

Error status

Code

2 - 98 AK 90003752(1) [AK-Commands] 10/98

ESOL – Write command "Setpoint value with limits"

With this write command the FU will get the required setpoint values with acceptable

deviations for the called channel (device) and subchannel (e.g. heating). If these limits will

be exceeded during the operation, it will cause a changing of the error status byte.

For the actual used devices subchannel "m" will be:

m = 0 Concentration

m = 1 Temperature

m = 2 Pressure

m = 3 Flow

m = 4 Pocket calculator No. 1

m = 5 Pocket calculator No. 2

m = 6 Pocket calculator No. 3

m = 7 Pocket calculator No. 4

These assignations may be changed for devices used in the future !

Write command

ESOL Kn m XXX yyy YYY

Upper limit

Lower limit

Addressed setpoint value

Addressed subchannel m

Addressed channel n

Code

Response

ESOL 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 99

ESYZ – Write command "System time"

With this write command the FU will get the system time (calendar time) that has to be

adjusted for the called channel (device).

Write command

ESYZ Kn JJMMTT hhmmss

Value for the adjustment of the system time

Addressed channel n

Code

Response

ESYZ 0

Error status

Code

2 - 100 AK 90003752(1) [AK-Commands] 10/98

ET9O – Write command "T90 time" (response time)

With this write command the analyzers in a system or the single analyzer will get the t90

time steps in seconds that have to be adjusted for the called channel (device).

Write command

ET9O Kn XXX YYY ZZZ

Value for the adjustment of the t90 time (fast)

Value for the adjustment of the t90 time (medium)

Value for the adjustment of the t90 time (slowly)

Addressed channel n

Code

Response

ET9O 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 101

ETOL – Write command "Stability tolerances"

With this write command the analyzers in a system, the single analyzer or the front-end

computer will get the required tolerances for functions running stability controlled. The

tolerance will be specified in percent of the end of range value. The tolerance can be

adjusted for each range separately. No tolerance check will be done, if the tolerance value

will be set to T = 100%.

Write command

ETOL Kn M1 Tn1 [...Mm Tnm]

Tolerance channel n, range m in percent of the end of

range value;

tolerance deviation = 2 * tolerance (optional)

Tolerance channel n, range 1

Range 1

Addressed channel n

Code

Response

ETOL 0

Error status

Code

2 - 102 AK 90003752(1) [AK-Commands] 10/98

EVEZ – Write command "Delay and synchronization time"

With this write command the analyzers in a system or the single analyzer will get the delay

time and the synchronization time for the called channel (device). The delay time will be

used for integrators started by "SINT" or for the delayed record of valid signals. The

synchronization time will be used for the output of values that were read by "AKON",

"AIKO" and "AIKG" from an internal buffer. The same synchronization time will also delay

the analog signal of these values. This procedure will be started by the control command

"SRON" or will be finished by the control command "SROF".

Write command

EVEZ K0 XXX YYY

EVEZ Kn XXX YYY

Synchronization time

Delay time

Read of channel n

Code

Response

EVEZ 0

Error status

Code

II) V24/RS232/485 Interface - Single Analyzers and Systems

90003752(1) [AK-Commands] 10/98 AK 2 - 103

EZEI – Write command "Times"

With this write command the FU will get the times that have to be adjusted in the called

channel (device) for the automatic start of functions or procedures (e.g. "Automatic

calibration"). Furthermore, the FU will get the function length in seconds.

The following controls will be possible:

• If the calendar day will be mentioned, the function will start only once at one date.

If the calendar day will be missing, the function will start each day.

• The clock time as starting time and the function length have always to be mentioned.

• If the function length will be zero, the function will run without any time limit. Then it can

only be finished by another control command. A function length of the write command

"EFDA" will not be used here.

• Unused data will be replaced by "#".

If the functions shall start several times automatically at the same day, the times can be

set up in blocks one after another (maximum 4 digits).

Functions with day information will be deleted automatically after they will be ready.

Otherwise, the set-ups of functions will be deleted by resetting all values to zero.

Examples:

• CODE 871113 171200 0: The adjusted function will be started for one time at

13/11/87, 5 o'clock p.m. (17 o'clock), 12 minutes and

0 seconds. The function length will be unlimited.

• CODE 871113 171200 33: The adjusted function will be started for one time at

13/11/87, 5 o'clock p.m. (17 o'clock), 12 minutes and

0 seconds. The function length will be limited to 33 sec.

• CODE # 051208 0: The adjusted function will be started each day at

5 o'clock a.m., 12 minutes and 8 seconds.

The function length will be unlimited.

• CODE # 051200 1850: The adjusted function will be started each day at

5 o'clock a.m., 12 minutes and 0 seconds.

The function length will be limited to 1850 seconds.

• CODE # 060000 100 # 120000 0 # 180000 0 # 240000 150:

The adjusted function will be started each day at

6, 12, 18 (6 p.m.) and 24 (12 p.m.) o'clock.

2 - 104 AK 90003752(1) [AK-Commands] 10/98

Write command

EZEI Kn CODE JJMMTT hhmmss T-0

Function length

Start time of the function

Start day of the function

Function that shall be started

Addressed channel

Code

Response

EZEI 0

Error status

Code

Supplement

90003752(1) [AK-Commands] 10/98 AK Supplement - 1

1. Overview about working AK commands in NGA devices

Code Function MLT local

V3.2 MLT/CU

V3.2 Other AM

V3.2

AAEG Deviation to span gas √ √

AALI Linearization check results √ √

AANG Deviation to zero gas √ √

ABST Hours of operation √ √

ADRU Pressure √ √ √

ADUF Flow √ √ √

AEMB Actual range number √ √ √

AFDA Function length √ √

AGID Device identification √ √ √

AGRWLimits √ √

AIKG PV average (Concentration integral value); all √ √

AIKO PV average (Concentration integral value); partial √ √

AKAK Span gases √ √ √

AKAL Calibration results √ √

AKEN Tag √ √

AKFG System configuration √ √ √

AKON Concentration √ √ √

AKOWCalibration values (Correction for zero and gradient) √ √

ALCH Linearization check results √ √

ALIK Calculation of linearization curve √ √

ALIN Linearization x/y-values √ √

ALKO Linearization polynomial coefficients √ √ √

ALST Linearization steps √ √

AM90 Actual t90 time √ √

AMBA Begin of ranges √ √ √

AMBE End of ranges √ √ √

AMBU Switch levels for autorange √ √

AMDR Manual pressure value √ √

APAR Parameters general

AQEF Cross interference check result √ √

ASOL Setpoints with limits √ √

ASTA Internal status √ √

ASTF Internal error status √ √

ASTZ Action status (running procedure) √ √

ASYZ Time and date of the system √ √ √

AT90 t90-times √ √

ATEM Temperature √ √ √

ATOL Tolerances for stability controlled procedures √ √

AUKA Uncorrected, analog PV value √ √ √

AVEZ Delay and synchronization time √ √

AZEI Times for procedures √ √

EFDA Function length √ √

EGRWLimits √ √

EKAK Span gases √ √ √

EKEN Tag √ √

EKFG System configuration √ √ √

ELIN Linearization x/y-values √ √

ELKO Linearization polynomial coefficients √ √ √

Supplement - 2AK 90003752(1) [AK-Commands] 10/98

Code Function MLT local

V3.2 MLT/CU

V3.2 Other AM

V3.2

ELST Linearization steps √ √

EMBA Begin of ranges √ √ √

EMBE End of ranges √ √ √

EMBU Switch levels for autorange √ √

EMDR Manual pressure value √ √

EPAR Parameters general

ESOL Setpoints with limits √ √

ESYZ Time and date of the system √ √

ET90 t90 times √ √

ETOL Tolerances for stability controlled procedures √ √

EVEZ Delay and synchronization time √ √

EZEI Times for procedures √ √

SALI Linearization check with span gases √ √

SARA Autoranging OFF √ √

SARE Autoranging ON √ √

SATK Zero and span calibration √ √

SCAL Start system calibration √

SEGA Open spangas valve √ √

SEMB Set range √ √ √

SENO Switch to NO mode for CLD module √

SFRZ Floating point format of real numbers √ √ √

SGTS Switch to device test status

SHDA Hold mode OFF √ √

SHDE Hold mode ON √ √

SINT Start integration √ √

SLCH Start linearization check √ √

SLIN Start linearization √ √

SLST Switch linearization step √ √

SMAN Communication: Manual √ √

SMGA Open sample gas valve √ √

SNAB Zero calibration √ √ √

SNGA Open zero gas valve √ √

SNOX Switch to NOx mode for CLD module √

SPAB Span calibration √ √ √

SPAU Set to pause mode √ √

SQEF Start cross interference measurement √ √

SREM Communication: Remote √ √

SRES µP-Reset √ √ √

SROF Delay mode OFF √ √

SRON Delay mode ON √ √

SRUC Purge backwards

SSPL Open purge gas valve √ √

ST90 Set t90 time √ √

STBY Set to stand-by √ √

Implemented additional Fisher-Rosemount specific commands (not official AK):

ALIK, AMBA, AMDR

EMBA, EMDR

SCAL, SFRZ, SHDA, SHDE, SNAB, SPAB

ASVC, ESVC, SSVC, (additional service commands)

Supplement

90003752(1) [AK-Commands] 10/98 AK Supplement - 3

2. AK Service Commands

ASVC K0 S599 ExactNode Name Reading of LON variables of a network node

Description: This command is an enlarged alternative to the S600 command. It may use the variables of

all network nodes, even if they will not be analyzer modules. You only have to know the right

node address (cf. S632).

Syntax: ExactNode = Right network node address

Name = Name of the variable

Response: ASVC 0 a

a: Value of the desired variable

Notes: Only texts without an AK separating sign will be valid as variable names.

The "ExactNode" is an address composed from a node address and its subnode address.

The formula is: ExactNode = Subnode * 256 + Node;

Example: Node = 2 Subnode = 1 ExactNode = 1*256 + 2 = 258

Cf.: S600, S630, S632

ESVC K0 S599 ExactNode Name a Writing from a LON variable of a network node

Description: This command is an enlarged alternative to the S600 command. It may use the variables of

all network nodes, even if they will not be analyzer modules. You only have to know the right

node address (cf. S632).

Syntax: ExactNode = Right network node address

Name = Name of the variables

a = Value of the variable

Notes: Only texts without an AK separating sign will be valid as variable names.

The "ExactNode" is an address composed from a node address and its subnode address.

The formula is: ExactNode = Subnode * 256 + Node;

Example: Node = 2 Subnode = 1 ExactNode = 1*256 + 2 = 258

Cf.: S600, S630, S632

SSVC K0 S599 ExactNode Name a Writing from a LON variable of a network node

without checking the range of values

Description: This command corresponds to "ESVC K0 S599...", only without checking the range of values.

Supplement - 4AK 90003752(1) [AK-Commands] 10/98

S600: Access to LON network variables

Access to network variables of an analyzer module.

Notes:

+ If a variable will contain several values (array), you can access to these values by adding the

corresponding number directly to the name of the variable.

Example: LINYA = [31, 44, 54]

LINYA1 = 31

LINYA2 = 44

LINYA3 = 54

+ The network variable knows its data type. The AK command will try to convert the text of value inputs to

the required type. Only if this will not be possible a syntax error will be reported.

+ If the data will be of the so-called "enum" type, the value will have to be inputted as integer. The text on

the display cannot be used, because this text information is only existing in the control unit.

To find out the integer value corresponding to a certain "enum" text, you have to look into the EXCEL-

File. In the EXCEL-File the first column of the "enum" text will correspond to the value "0", the next

column to the value "1" etc.

ASVC Kn S600 Name Reading of the variable value

Syntax: Name = Name of the variable

Response: ASVC 0 a

a: Value of the desired variable

Note: Only texts without an AK separating sign will be valid as variable names.

Cf.: S630 (which variables are existing ?)

ESVC Kn S600 Name a Writing of the variable value

Syntax: Name = Name of the variable

a = Value of the variable

Cf.: S630 (which variables are existing ?)

SSVC Kn S600 Name a Writing of the variable value

without checking the range of values

Description: This command corresponds to "ESVC Kn S600...", only without checking the range of values.

Supplement

90003752(1) [AK-Commands] 10/98 AK Supplement - 5

ASVC Kn S615 b Reading of the current data of a DIO board

Description: The current status of the named DIO board will be read.

Syntax: b: Board number (1, 2, 3 ,4; not SLOT-ID);

for b = 0 the data of all available DIO's will be sent

Response: ASVC 0 IIIIIIII OOOOOOOO OOOOOOOO OOOOOOOO RLLL

I1...8 Status of the digital input pins 1...8

O1...24Status of the digital output pins 1...24

R Retrigger error

L1...3 Overload group 1...3

SSVC Kx S617 n s [n s] Setup of the external switch variable DIGEXTSWITCH

Description: The outputs of a DIO board can be assigned to the single bits of the variable DIGEXTSWITCH.

For the platform the lowest 8 bits of this variable are available. With the command "SSVC"

each switch can be set. This on the other hand may cause a direct switch of an assigned

digital output.

Syntax: n: Switch number

s = Status (0 = OFF; 1 = ON)

x: If the channel number will be K0, the variable DIGEXTSWITCH will be called of the

module containing the local SIO

(platform SIO → control module, MLT SIO → analyzer module).

The parameters "n s" can be repeated up to seven times for the platform.

Examples: SSVC K0 S617 1 1 2 0 3 1 Set external switch 1 to HIGH

Set external switch 2 to LOW

Set external switch 3 to HIGH

Supplement - 6AK 90003752(1) [AK-Commands] 10/98

SSVC Kn S621 a Loading/Saving of device specific parameters

Description: With this command you can load/save the device specific parameters. This will be possible

via the serial interface and from /to the internal FLASH memory (if on ACU available!).

Syntax: a = 1: loading new configuration via the serial interface.

2: sending out the current configuration via the serial interface

3: saving the current configuration in the FLASH memory

4: loading the configuration saved in the FLASH memory

Notes: The data format for the loading via the serial interface (a = 1) corresponds to the data format

of the serial sending out (a = 2).

Some peculiarities will have to be heeded, because the serial interface will be used parallel

for AK and for in-/output of the data stream:

For a = 1 you will have to wait for the AK response, before you will start the sending of the

data stream.

For a = 2 the AK response ("<STX><don’t care>SSVC 0<ETX>") will be sent at first. It will

not be necessary to treat these response signs in a certain way, because this line will be deleted

as invalid stream!

Saving the configuration in the FLASH memory (a = 3) will overwrite the factory settings of

the device !!

With a = 4 the factory settings will be reloaded to the RAM memory and so to the actual

working memory.

Cf.: Instruction manual

Supplement

90003752(1) [AK-Commands] 10/98 AK Supplement - 7

ASVC Kn S630 Output of the LON variable names

Description: All LON variables that are available in an analyzer module will be sent out with their names.

If a variable will contain several values (array), it will be marked by an appendix in brackets.

In these brackets you will find the numbers to access to the array values of the variable.

Example: LINYA[1-7] contains 7 values. You can access to these values with the

names LINYA1, LINYA2, ... LINYA7.

Notes: K0 is not possible.

At the moment the command is implemented in a way that it will send out for each channel all

variables available in the certain module. That means that variable names may exist multiplex.

These multiplex available variables will be separated internal and each will be assigned to

another channel (subnode).

If variables will not exist multiplex, these variables will only exist once.

That means that a changing within a channel will have an effect as changing of the other

channels.

Cf.: S600 (Access to network variables)

ASVC Kn S631 Output of the LON node informations

Syntax: ASVC Kn S631

Response: ASVC 0 <name> <version> <node-number> <subnode-number>

ASVC Kn S632 Output of the LON node informations of all nodes

Syntax: ASVC K0 S632

Response: ASVC 0 <ExactNode> <NodeTag>

ExactNode = Exact node address in the network

NodeTag = Tag string of this node

Notes:The "ExactNode" is an address composed from the node address and its subnode

address.

The formula is: ExactNode = Subnode * 256 + Node;

Example: ExactNode = 258

Subnode = ExactNode mod 256 = 1

Node = ExactNode - ((ExactNode mod 256)*256) = 2

Cf.: S599, S600, S630

Supplement - 8AK 90003752(1) [AK-Commands] 10/98

ASVC Kn S640 a Output of values of the MLT concentration formula

Concentration formula:

Conce = FacP * FacT * FacSpan * Lin{(RawAvg - OffP - OffT - OffX) * RGain * Gain}

Meaning of the variables:

RawAvg: Raw value average (including t90 time)

OffP: Offset correction of physics

OffT: Offset correction of temperature

OffX: Offset correction of interferences from other channels

RGain: Analog pre amplifying factor (BIS)

Gain: Factor standardizing to the desired setpoint value (span)

Lin: Linearization procedure

FacSpan: Span factor standardizing the product "FacP*FacT*FacSpan" to 1.0 during the span cal.

FacT: Temperature correction in the sensitivity

FacP: Pressure correction in the sensitivity

Conce: Concentration value

Syntax: ASVC Kn S640 a

Response: ASVC 0 <value1> <value2> ...

a = 0: value1 = RawCount = uncorrected signal

value2 = RawAvg

value3 = OffT

value4 = OffX

value5 = OffP

value6 = Gain

value7 = RGain

a = 1: value1 = LinInput = (RawAvg - OffP - OffT - OffX) * RGain * Gain

value2 = LinOutput = Lin{(RawAvg - OffP - OffT - OffX) * RGain * Gain}

value3 = FacSpan

value4 = FacT

value5 = FacP

value6 = Conce

a = 2: value1 = Temperature for OffT

value2 = Temperature for FacT

value3 = Atmospheric pressure for FacP

Emerson Ak Protocol Nga 2000 Software Manual Protocol, English

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