L200_e L200 E

User Manual: l200_e

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Find out what's going on virtually free off charge

A text display system which saves more than it costs

The universally applicable text display LCA 200 shows what your

machines and control can do. If you wish, it can do this 1024

times in different languages.

You make a precise display or message out of everything you

have. All you need are simple contacts or PLC outputs.

The small and compact LCA 200 with its enormous performance

capabilities, easily blends in with your machine design, whether it

be once, twice or, to put it a nutshell, as often as you want, as

often as you have something to display.

And why not in any case if you can have two text displays for the

price of one.

Programming the LCA 200 with any PC is such a dream that you

could fall into the temptation of not wanting to do anything else.

It only remains to be said: just simply try out this universally

applicable LCA 200 text display!

CiS-Nr.: 360.000.0400

Version 2/06.94

LCA 200

Text Display

LCA 200

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

■4 Ways of Operating (Modes)

Direct drive, binary drive, cyclical transfer,

selective transfer

■3 Message Formats

Last message, initial message, cyclical dis-

play

■6 Variable Formats

BIT, STRING, BCD, BIN, VBIN and ASCII

variables

■16 Function bits (external)

• Help text call

• Quitting (flashing called message text is

made static with Q-key)

• Forward/back paging in the message

memory

• Call additional lines

• Call main lines

• Supression of infos and faults

• Selection of message formats

• Selection of default text/help text number

■LCD-Display 2 x 40 characters

with LED background illumination

■Integrated EEPROM

for firmware, texts and variable definitions

■10 Inputs

for a comprehensive text display drive

■RS 232 Serial Interface

for programming with the software

LCAPRO

■Up to 1024 Message Texts

with 2 main lines and 30 additional lines,

every text is combinable with variables. Each

message text can be formulated as info or

fault.

■Up to 16 Help Texts

with 2 main lines and 30 additional lines

■Up to 4 Default Texts

with 2 main lines and 30 additional lines

The LCA 200 text display can be easily incorporated into your automation

concept. The drive and message text call which can be selected by means of

individual contacts (connectors) or any PLC system is extremely simple. The

same applies for the programming and parameterization of the LCA 200 with

the LCAPRO planning software.

Here is an outline of the most important performance capabilities

of the LCA 200

LCA 200 back panel

LCA 200.

1 2 3 4 5 6 7 8 9 10

24V 0V D0 D1 D2 D3 D4 D5 D6 D7

CONTRAST

COM

RUN STOP

SERIAL-NR

FUSE

400mAT

LCAPRO

Programming the LCA 200 text display is

done with a PC (MSDOS). We supply the

LCAPRO planning software for this. The indi-

vidual project data and the firmware are

loaded per down load into the EEPROM.

The connection from the PC (COM1 or

COM2) to the LCA 200 is done with the LCA

733 cable

BIT

10 PLC outputs for max. 1024 messages

STATUS

TERMINAL

24V

The LCA 200 fits

every PLC

▲

CONTENTS OF THE LCA 200 MANUAL

Topics Pages

The text display connections 1

Technical data 2

Dimensions and cross section of front panel 3

The character table 4

General interference safeguard precautions for LCA devices 5

Installation instructions 6

Current supply 7

The Communication Concept 8

Mode 1: Direct drive 8

Mode 2: Binary drive 9

Mode 3: Cyclical transfer 10

Mode 4: Selective transfer 13

Operation of the LCA 200 (Modes 3, 4) 16

The function area of LCA 200 functions 16

The priorities of the LCA 200 17

The text organization of the LCA 200 18

The variables of the LCA 200 19

Example of BIT variable 20

Example of STRING variable 21

Example of BINARY (BIN BYTE/BIN WORD/VBIN BYTE/VBIN WORD) variable 22

Example of BCD variable 24

Example of ASCII variable 25

The diagnostic operation of the LCA 200 26

Time switch differences of the PLC outputs 28

PLC Cycle Time ≤ 1 ms 29

Operating instructions, manuals and software are protected by copyright. All

rights reserved. The copying, production, translation and conversion of the whole

or part of it, is not allowed. An exception is made for a back-up copy of the

software for own use.

TEXT DISPLAY LCA 200 Description 1

The Text Display Connections

The connection between the PLC and the LCA 200 is achieved by means

of the 12pin terminal connector. Every function is brought into play by

means of this interface:

- Call help texts

- Call message texts

- Supply variables

- Operation of the text display

LCA 200

+ 24VDC (19...33V)

0 V

D5 (DATALINE 5)

D4 (DATALINE 4)

D3 (DATALINE 3)

D2 (DATALINE 2)

PLC OUTPUTS

OPERATING VOLTAGE

1 2 3 4 5 6 7 8 9 10

D0 (DATALINE 0)

D1 (DATALINE 1)

S (SYNCHRONIZATION) or D8

T (CLOCK) or D9

D6 (DATALINE 6)

D7 (DATALINE 7)

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

TEXT DISPLAY LCA 200 Description 2

Technical Details

Operating voltage +19 ... 33V= (DC)

Signal voltage +19 ... 33V= (DC)

Power dissipation 6 W

Connections 12pin strip connection, plug

Safeguard Front panel: IP 65

Back panel: IP 20 (as IEC 529)

Dimensions (without plug) 216 x 48 x 40 mm

Weight ca. 275 g

Humidity no rear panel condensation max. 95%

Input resistance ca. 5.8 KOhm

Input level LOW: < 9 V (typ. 10,5 V)

HIGH: > 16 V (typ. 14,5 V)

Resistance to interference per IEC 801-1 Operating voltage

per IEC 801-1 discharging on rear panel

Temperature Storage -25...+70° C

Operating 0...+50° C

Fuse Glass fuse 400 mAT

Display LCD (LED background illumination)

Reading angle (60° above/below) 120°

Lines 2

Characters per line 40

Height of character, pixel matrix 5 mm, 5 x 7 dots

Character set ASCII (8 free definable characters)

Message call direct, binary or in multiplex procedure

Message pages maximum 1024

Idle, message, help texts 2 main lines, 30 additional lines

per page

Memory (for firmware and texts) EEPROM 32 kB

for texts ca. 22 kB available

Variable formats BIT, STRING, BCD, BIN, VBIN, ASCII

TEXT DISPLAY LCA 200 Description 3

Dimensions and Front Cross-section

LCA 200

PLC Connection/supply

48,0 mm

216,0 mm

LCA 200 Rear panel

LCA 200.

1 2 3 4 5 6 7 8 9 10

24V 0V D0 D1 D2 D3 D4 D5 D6 D7

CONTRAST

COM

RUN STOP

SERIAL-NR:

FUSE

400mAT

208 mm (+1)

40 mm (+1)

Mounting depth 40 mm

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

TEXT DISPLAY LCA 200 Description 4

Character Table

The character table shows all the ASCII and special characters with the

corresponding decimal coding that can be displayed on the LCA 200.

You can create your own special characters with the 8 definable charac-

ters.

TEXT DISPLAY LCA 200 Description 5

General Interference Protection Measures

Even the best electronic can only guarantee a secure function up to a

certain interference level. In order to avoid unnecessary breakdowns of

apparatus, the following information should be born in mind when plan-

ning:

1. If possible put the supply and signal wires of the LCA device in separate

cable channels.

2. The safety distance to the source of interference should be at least 250

mm.

3. The built-in safety and relais coil inductances in the same switch cabinet

must be switched on with the corresponding recovery diodes, resprec-

tively R-C-erasure parts.

4. Do not use fluorescent lamps for illumination of the control cabinet.

5. Fix a central earthing point with a large enough cross section to connect

the PE earth wire.

6. If there's great field strength as with a large transformer, we recom-

mend the installation of a separate insulating plate.

7. Frequency converters and other devices can only be suppressed with

shielded filter switches.

8. The best drainage of high frequency interferences is achieved with

shielded signal wires, whereby the protection should be earthed both

sides. However steps to incorporate an equipotential bonding

conductor M 10 mm2 must be made (refer to VDE 0100. Part 547).

9. Ready made filters inserted before the supply circuit, have proven

themselves to be effective in the case of large interferences.

Example of a suppressor with filter switch for large interference levels

Power pack

unstable or

stablized

LCA 200

+24 V

0 V

Power supply

Separation

point

According to the VDE 0113, it must be possible to measure the current to earth

at the separation point.

TEXT DISPLAY LCA 200 Description 6

Installation Instructions

To maintain a stable operation of the text display, all the perturbing

radiation sources should be at least 250 mm distance from the LCA 200.

This also applies to the data and supply lines of the LCA 200.

With cable lengths > 5 m, we recommend protected lines earthed on both

sides. Please note that in this case, an equipotential bonding conductor

with a minimum diameter of 10 times cable sheathing will be necessary.

The reason being the compensating current!

Feed lines to the LCA 200 should not be lead in along with high tension

or high frequency cables.

TEXT DISPLAY

LCA 200

>250 mm

>250 mm>250 mm

PERTURBING RADIATION SOURCE

TEXT DISPLAY LCA 200 Description 7

Current Supply

To maintain stable operation of the LCA 200 text display, the following

information appertaining to current supply should be taken into conside-

ration:

Only run the LCA 200 within the specified range of operating voltage.

Short term voltage interruptions of m 4 ms are permissible.

An operating voltage UB of 35 V is permissible for the duration of m 100

ms (repeating frequency ca. 1 Hz).

The LCA devices may only be run with the safety »low voltage« as of

VDE 100. The control transformer must confirm to the VDE 0551.

Thereupon according to the VDE a single pin earthing of the operating

current is possible. We recommend this earthing when running our

devices.

Without single pin earthing of the operating voltage, you require your

own control transformer to operate the LCA 200.

If switching on is done with the operating/signal voltage

safeguards or relais, they must be equipped with recovery

diodes and/or interference protection switches.

Operating current UB: 24 VDC m ( 5% residual ripples)

per DIN 19240 UBmax : 33 VDC

UBmin : 19 VDC

Current consumption : ~200 mA (to +24VDC)

TEXT DISPLAY LCA 200 Description 8

The Communication Concept

The LCA 200 text display possesses 10 digital inputs for driving. For

example, 10 digital PLC outputs can be used to call and update texts and

variables.

The functionality of the 10 inputs is determined with the LCAPRO planning

software.

After a data record has been created which contains text and variable defi-

nitions it is transfered into the text display together with the firmware for

the selected mode through the serial RS 232 interface of a PC. This data

finally ends up non-volatile in the integrated EEPROM of the LCA 200 text

display.

At the moment, 4 drive modes are available. There is a diagnostic module

for every mode which can be activated with the LCAPRO planning soft-

ware. This diagnostic module provides a means of assistance in facilitating

the primary commissioning and in the search for faults in the drive soft-

ware.

Mode 1: Direct Drive (without Clock and Synchronization)

This mode presents the simplest type of drive. Filing log 1 (24V) permits

double line message texts to be activated with the terminals 3...11

(Do...D7,S) 9.

If all the inputs are log 0, a double line idle text appears.

With log 1 at the terminals 12 (T), a second plane can be activated (e.g. for

language selection). Whereby there are 2 idle and 18 message texts availa-

ble.

If several inputs are log 1, the texts roll through in a time cycle preset by

the planning software.

With the text groups "idle texts" and "message texts", so called default

texts or category texts can be defined.

If a text is lined up but not projected, an empty display appears.

The internal variable "text number" can be applied in the filed texts.

LCA 200

+ 24VDC (19...33V)

0 V

MESSAGE 5, 14

MESSAGE 4, 13

MESSAGE 3, 12

MESSAGE 2, 11

PLC OUTPUTS

OPERATING VOLTAGE

1 2 3 4 5 6 7 8 9 10

MESSAGE 0, 9

MESSAGE 1, 10

MESSAGE 8, 17

SELECTION OF PLANE 0, 1

MESSAGE 6, 15

MESSAGE 7, 16

Mode 1: Direct drive

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

TEXT DISPLAY LCA 200 Description 9

The Communication Concept

Mode 2: Binary drive (without Clock and Synchronization)

On apply a binary value (10 bit) with this mode, it is possible to activate a

maximum of 1024 double line messages (0...1023).

The binary values are filed with the terminals 3...12 (Do...D7, S, T). The

most significant bit (MSB) is terminal 12 (T), the lowest significant (LSB) is

terminal 3 (D0).

A default message text can be defined for non-planned message texts. It

is advisable to integrate the variable "text number" here.

If a text is lined up but hasn’t been planned, an empty display appears.

LCA 200

+ 24VDC (19...33V)

0 V

PLC OUTPUTS

OPERATING VOLTAGE

1 2 3 4 5 6 7 8 9 10 11 12

D0 = BIN (2 ) = 1

D1 = BIN (2 ) = 2

D2 = BIN (2 ) = 4

D3 = BIN (2 ) = 8

D4 = BIN (2 ) = 16

D5 = BIN (2 ) = 32

D6 = BIN (2 ) = 64

D7 = BIN (2 ) = 128

S = BIN (2 ) = 256

T = BIN (2 ) = 512

Mode 2: Binary drive

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

TEXT DISPLAY LCA 200 Description 10

The Communication Concept

Mode 3: Cyclical Transfer (Multiplex with Clock and Synchroniza-

tion)

A maximum of 256 bytes (terminals 3...10 = D0...7 = data bit 0...7) are

cyclically transfered with the terminals 11 (S= synchronbit) and 12

(T=Clock).

The text display absorbs the applied bytes (data bits D0...7) with every

positive as well as negative edge of the clock bit.

The first byte is marked with the terminal 11 (S) = log 1. All the following

bytes are transfered with the reset synchronous input terminals 11 (S) = log

It is absolutely essential as the distance between two clock edges amounts

to at least a millisecond.

As the outputs of the various PLC and componentry manufacturers have

differing switching delays for log 0/log 1 - and log 1/log 0 transfers, a

"clock delay time" can be set with the planning software. It can be set

within the range 250 µs and 10ms.

The cyclical transfer is to be recommended if the PLC cycle time is short (<

10ms) or the PLC has a timer interrupter facility <10ms with fast periphery

access. All the data bits of the address area are transfered into the LCA 200

cyclically.

Advantage: minimum programming and execution time. The PLC only

has to present the information for the respective addresses that follow and

to invert the clock bit. 256 PLC cycles are necessary for the maximum

number of 256 addresses. In order to increase the speed for updating the

data, the number of maximum addresses must be reduced to the highest

number of applied addresses if they are less than 256.

The synchronising S log 1 and the clock flank puts the address pointer onto

the address 00. Every positive (0 -> 1) or negative (1 -> 0) flank of the clock

T increases the address pointer (+1). The LCA reads the data bits of this

allocated address and calls functions, messages and/or variables. The clock

bit is inverted with every writing of the PLC output byte.

LCA 200

+ 24VDC (19...33V)

0 V

D5 (DATALINE 5)

D4 (DATALINE 4)

D3 (DATALINE 3)

D2 (DATALINE 2)

PLC OUTPUTS

OPERATING VOLTAGE

1 2 3 4 5 6 7 8 9 10

D0 (DATALINE 0)

D1 (DATALINE 1)

S (SYNCHRONIZATION) or D8

T (CLOCK) or D9

D6 (DATALINE 6)

D7 (DATALINE 7)

Mode 3: Cyclical transfer

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

TEXT DISPLAY LCA 200 Description 11

The Communication Concept

If the address pointer reaches the address 255, it must be reset again to

address 00 with the synchronization S (log 1). If the address pointer is not

reset, it remains on address 255.

With every address, the address pointer can be reset to address 0 with the

synchronization (log 1).

Data bits of the respective address must always be filed on the dataline

D0...D7.

You can glean the driving concept from the following flow diagram.

Whereby the creation of a PLC program will be made easier.

LCA 200

Example:

Cyclical Transfer of

addresses 0 to 255

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

6 5 4 3 2

258 M = MESSAGE TEXTS # 258 (ADDRESSES 34.2)

27M6M5M4M3M2

10M11M12M13M14M15M

33 250M251M252M253M254M255M

34 263M262M261M260M259M258M

266M267M268M269M270M271M

127 1002M1003M1004M1005M1006M1007M

129

128 1015M1014M1013M1012M1011M1010M

1018M1019M1020M1021M1022M1023M

248M

256M

264M

1000M

1008M

1016M

249M

257M

265M

1001M

1009M

1017M

HQI ZUHUS

H0H1F1 F0R0R1 H3 H2

BIT VARIABLES

STRING VARIABLES

BCD VARIABLES

BIN VARIABLES

VBIN VARIABLES

ASCII VARIABLES

255

MAX. ADDRESS RANGE

DATABIT

VARIABLES MESSAGE TEXTS FUNCTION

TEXT DISPLAY LCA 200 Description 12

The Communication Concept

Flow diagram in Mode 3

;PLC operated inputs/outputs

;Synchronous bit preferably previously occupied with 0 (reset)

;Invert clock bit

(Clock exchange 0/1 -> 1/0 -> 0/1)

;Address +1

;Load 8 databits corresponding to the selected addresses

from the data array, e.g. by indirect addressing.

;Reset the address

;Zero run synchronization

S = set log 1

;In our example the end address is the same as the maximum

address 255 => query on end address + 1.

If there are less addresses, the end address must be

correspondingly reduced.

With a PLC fresh run, the address counter is to be initialized

with the end address +1 so that in the 1st PLC cycle, the

address 0 will be transfered with synchronization.

TEXT DISPLAY LCA 200 Description 13

The Communication Concept

Mode 4: Selective Transfer (Multiplex with Clock and Synchroni-

zation)

Up to 256 selective bytes (terminals 3...10 = D0...7 = data bit 0...7) are

transfered through the terminals 11 (S = synchronous bit) and 12 (T =

Clock). Selective means that only data which has been changed will be

transfered from the PLC.

The text display incorporates the applied bytes (data bits D0...7) for every

positive as well as every negative edge of the clock bit (T).

Using the terminal 11 (S) = log 1, the address pointer which shows to the

transfer block of 256 bytes size, can be positioned. If the terminal 11 (S)

= log 0, data will be transfered to the previous set address.

If several bytes are to be transfered to the consecutive unbroken chain of

addresses, it is only necessary to position the address pointer at the begin-

ning. All the subsequent bytes can be transfered directly one after another,

as the text display automatically increments the address pointer after every

clock.

It is essential that there is a minimum interval of a millisecond between two

clock flanks.

As the outputs of the various PLC manufacturers and componentry have

differing switching delays for log 0/log 1 - and log 1/log 0 transfers, a

"clock delay time" can be set with the planning software. It can be set

within the range 250 µs and 10ms.

Selective transfer is to be recommended if the PLC cycle time is long. Only

addresses in which the data bits are altered, are transfered into the LCA

200.

Advantage: Fast reaction. However the PLC program is more complica-

ted and requires more execution time than the cyclical transfer.

LCA 200

+ 24VDC (19...33V)

0 V

D5 (DATALINE 5)

D4 (DATALINE 4)

D3 (DATALINE 3)

D2 (DATALINE 2)

PLC OUTPUTS

OPERATING VOLTAGE

1 2 3 4 5 6 7 8 9 10

D0 (DATALINE 0)

D1 (DATALINE 1)

S (SYNCHRONIZATION) or D8

T (CLOCK) or D9

D6 (DATALINE 6)

D7 (DATALINE 7)

Mode 4: Selective transfer

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

TEXT DISPLAY LCA 200 Description 14

The Communication Concept

As long as the synchronous input S is log 1, the binary coded address lies

with the datalines D0...D7. If the synchronous input S changes to log 0, the

data bits for functions, messages and/or variables lie with the datalines

D0...D7.

If the synchronous input S remains log 0, the address pointer (+1) is in-

creased with every clock flank. The transfer then corresponds to the cyclical

transfer. Thereupon there is a saving of a clock cycle for a renewed address

pointer positioning.

You can glean the drive principle from the following flow diagram. Where-

by the creation of a PLC program is made easier.

LCA 200

6 5 4 3 2

258 M = MESSAGE TEXTS # 258 (ADDRESSES 34.2)

27M6M5M4M3M2

10M11M12M13M14M15M

33 250M251M252M253M254M255M

34 263M262M261M260M259M258M

266M267M268M269M270M271M

127 1002M1003M1004M1005M1006M1007M

129

128 1015M1014M1013M1012M1011M1010M

1018M1019M1020M1021M1022M1023M

248M

256M

264M

1000M

1008M

1016M

249M

257M

265M

1001M

1009M

1017M

HQI ZUHUS

H0H1F1 F0R0R1 H3 H2

BIT VARIABLES

STRING VARIABLES

BCD VARIABLES

BIN VARIABLES

VBIN VARIABLES

ASCII VARIABLES

255

MAX. ADDRESS RANGE

DATABIT

VARIABLES MESSAGE TEXTS FUNCTION

Example:

Transfer of addresses

5, 6 and 145

Contents of address 5 = 0100 1100

Contents of address 6 = 1001 1101

Contents of address 145 = 0010 0010

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

TEXT DISPLAY LCA 200 Description 15

Status bit 0:log 1 = address pointer is positioned

correctly

Status bit 1:log 1 = actual data has still to be issued

The Communication Concept

Flow diagram in Mode 4

TEXT DISPLAY LCA 200 Description 16

Operation of the LCA 200 (Modes 3, 4)

The Function Range of the LCA 200

Operation of the LCA 200 is done with the first 16 function bits. They

determine the respective function of the text display.

General Outline of the LCA 200 Functions:

SYMBOL ADR/BIT FUNCTION

H = 00.0 Calling a help text

Q = 00.1 Quitting a flashing text

▼= 00.2 Leafing forwards in active message memory

▲= 00.3 Leafing backwards in active message memory

Z = 00.4 Call additional information (lines 3..32)

i = 00.5 Call main information (lines 1 + 2)

UH = 00.6 Suppression of information

US = 00.7 Suppression of faults

H0 = 01.0 Selection of the help text bit 0

H1 = 01.1 Selection of the help text bit 1

H2 = 01.2 Selection of the help text bit 2

H3 = 01.3 Selection of the help text bit 3

F0 = 01.4 Selection of the message format bit 0

F1 = 01.5 Selection of the message format bit 1

R0 = 01.6 Selection of the idle text bit 0

R1 = 01.7 Selection of the idle text bit 1

6 5 4 3 2

HQI ZUHUS

H0H1F1 F0R0R1 H3 H2

ADDRESS 00 ADDRESS 01

BIT 0 Call Help Texts H

The help text, having been preselected with

the bits H0...H3 is called with log 1.

BIT 1 Quit Flashing Texts Q

The flashing message text currently being pre-

sented is quitted with the positive edge (0/1)

and thereafter displayed as an established text.

If there is a fresh call for the message text, it will

be necessary to have renewed quitting.

BIT 2 Leaf Forwards in the Message Memory ▼

Leafing forward is done from the older to the

next latest message in the active display me-

mory (information or fault) with the positive

edge (0/1).

BIT 3 Leaf Backwards in the Message Memory ▲

Leafing backwards is done from the latest to

the next older message in the active display

memory (information or fault) with the positive

edge (0/1).

BIT 4 Call Additional Information Z

Always the next 2 text lines of the actual text

are called with the positive edge (0/1). This

function applies for the text groups: message,

help and idle text.

BIT 5 Call Main Information i

The first two lines of the actual text are called

with the positive edge (0/1). This function

applies for the text groups: message, help and

idle text.

BIT 6 Suppress Information UH

Active information are suppressed with log 1

(messages).

BIT 7 Suppress Faults US

Active faults are suppressed with log 1 (mes-

sages).

BIT 0...3 Call Help Texts H0...H3

A help text is binary coded selected out of 16

possible ones using this 4 bit. The call of the

address takes place in bit 0 (address 00).

BIT 4 + 5 Message Format F0 + F1

The message format for the maximum 128 re-

gistered messages in the message memory*) is

determined with these 2 bits. The following

combinations are possible:

F1 F0

0 0 Last value message

0 1 First value message

1 0 Cyclical display

1 1 Reserve function

BIT 6 + 7 Call idle texts R0...R1

A binary coded idle text is selected from a

selection of 4 with these 2 bits. The text is

called if there isn't a higher priority (message

or help text) active.

*) When there over 128 active messages, the latest messages

can only be considered, if older messages are cleared. It is

not then possible to achieve the time sequence.

TEXT DISPLAY LCA 200 Description 17

Operation of the LCA 200 (Modes 3, 4)

Priorities of the LCA 200

The LCA 200 possesses 4 priority stages:

- Idle priority (priority 0 = lowest priority)

- Info priority (priority 1)

- Fault priority (priority 2)

- Help priority (priority 3 = highest priority)

The LCA 200 puts the respectively highest (released) priority on display. By

setting the bit "H" in address 0, the help priority (highest priority) can be

displayed at any time. The desired help text number 0...15 is then to be filed

through the bits H0...3 in address 1.

The fault priority will then be displayed if the message bit is set with

parameterized message text of the priority "fault" and the bit "US" in

address 0 is set on log 0. Faults can be suppressed at any time by setting

the bit "US".

The info priority is displayed if a message bit with parameterized message

text of the "info" priority is set and the bit "UH" in address 0 is set to log

0. Infos can be suppressed at any time by setting the bit "UH".

The idle priority (lowest priority) is displayed, if the bit "H" in address 0 is

set to log 0 and no infos or faults are active.

TEXT DISPLAY LCA 200 Description 18

Operation of the LCA 200 (Modes 3, 4)

The Text Organization of the LCA 200

The LCA 200 can call a maximum of:

- 16 help texts

- 1024 message texts (infos and faults)

- 4 idle texts

Every help, message and idle text can be 32 lines, 40 characters (double

line information and 30 line additional information). The text groups are

lined up in order of priority. The help text has the highest priority, the idle

text has lowest priority.

Every message text is attached a message bit in the PLC. The 1024 message

bits in the LCA 200 have the addresses 2.0...129.7 (messages 0...1023).

If the message bit is log 1, the message text is switched on and if it is log

0 it will be switched off. If several message bits are log 1 at the same time,

then the message memory of the LCA 200 will register this. The message

memory can absorb maximum 128 infos and 128 faults. These are not

"non-volatile". If the message memory is full up and messages are

selectively deleted or new messages activated, there is no longer a timed

sequence. The display appears according to the selected message format

(F0, F1): as either first or last message or cyclical.

As long as the function bit H (00.0) is log 1, a help text is displayed. Owing

to the higher priority of the help text the idle or message texts are suppres-

sed.

The LCA 200 will show the idle text if there is no active help or message

text.

Calculation Formula:

Address a.b. -> Message text

((a-2) x 8) + b

Example:

34.2 -> 258

6 5 4 3 2

258 M = MESSAGE TEXTS # 258 (ADDRESSES 34.2)

27M6M5M4M3

10M11M12M13M14M15M

33 250M251M252M253M254M255M

34 263M262M261M260M259M258M

266M267M268M269M270M271M

127 1002M1003M1004M1005M1006M1007M

129

128 1015M1014M1013M1012M1011M1010M

1018M1019M1020M1021M1022M1023M

248M

256M

264M

1000M

1008M

1016M

249M

257M

265M

1001M

1009M

1017M

abHQI ZUHUS

H0H1F1 F0R0R1 H3 H2

BIT VARIABLES

STRING VARIABLES

BCD VARIABLES

BIN VARIABLES

VBIN VARIABLES

ASCII VARIABLES

255

MAX. ADDRESS RANGE

DATABIT

VARIABLES MESSAGE TEXTS FUNCTION

The Data Block:

TEXT DISPLAY LCA 200 Description 19

Operation of the LCA 200 (Modes 3, 4)

The Variables of the LCA 200

The LCA 200 possesses character variables and numerical variables with

differing formats.

With the character variables, a string is allocated to the log states of indivi-

dual (bit variable) or several (STRING variable) bits.

With numerical variables it is decided upon as to whether the transfered

value from the PLC is either binary or BCD coded. The LCA 200 transforms

the numerical variable and presents it in decimal form.

Variables can be positioned on all addresses (0...255). The user is responsi-

ble to differentiate between function and message bit blocks.

The message bit block is automatically limited by a filed message text used

bit on the block byte 2 up to the highest amount.

If, for example, the M250 (byte 33.2) is planned as the maximum message

text, the addresses can be used for variables as of byte 34.

NUMERICAL VARIABLES

CHARACTER VARIABLES

BIT Variable

A string is allocated to each one of the 2 log states of any particular

bit in the data block. The string is user-defined and may have a maxi-

mum length of 40 characters. The string itself may not have any

further variable. The longest of both strings determines by the reser-

ved space.

Example:

Bit nn = log 0 » End switch off«

Bit nn = log 1 » End switch on«

STRING Variable

A string can allocated to any binary value of any particular byte in the

data block (0...255). That's a maximum of 256 strings. The strings are

user-defined and may have a maximum length of 40 characters. The

string itself may not have any further variable. If a value is outside the

value area, an inverse field will be presented on the display.

Example:

Byte nn = 0 >> Default setting <<

Byte nn = 1 >> Hot phase <<

Byte nn = 2 >> Cool phase <<

. .

ASCII Variable

The corresponding character from the character table will be alloca-

ted to each binary value of a byte in the data block.

BIN BYTE Variable

The transfered value at any particular byte in the data block will be

presented as a unsigned number. The value range can be parame-

terized and lies between 0...255. Pre-zeroes as well as pre-commas

and post comma positions can be parameterized. If the value is out-

side the MIN/MAX values, an inverse field will appear.

BIN WORD Variable

The transfered value at any particular word in the data block (2 conse-

cutive bytes) is presented as a unsigned number. The value range can

be parameterized and lies between 0...65535. Pre-zeroes, as well as

pre-comma and post comma positions can be parameterized.

Address nn = higher valued byte

Address nn+1 = lower valued byte

If the value is outside the MIN/MAX values, an inverse field will appear.

VBIN BYTE Variable

The transfered value at any particular byte in the data block will be

presented as a fixed signed number. The value range can be parame-

terized and lies between -128 and +127. Pre-zeroes, as well as pre-

comma and post comma positions can be parameterized. If the value

is outside the MIN/MAX value, an inverse field will appear.

VBIN WORD Variable

The transfered value at any particular word in the data block (2 conse-

cutive bytes) will be presented as a fixed signed number. The value

range can be parameterized and lies between -32768 and +32767.

Pre-zeroes, as well as pre-comma and post comma positions can be

parameterized.

Address nn = higher valued byte

Address nn+1 = lower valued byte

If the value is outside the MIN/MAX values, an inverse field will appear.

BCD Variable

The value transfered through the 4 or 8 datalines (D0...D3 or D0...D8)

is evaluated as a single or double digit BCD value and is showed in the

display.

To achieve a great amount of digit number presentations, more BCD

variables can be joined onto on another.

It is possible to fade in the following characters with the pseudote-

trades:

$ 0B hex corresponds to "+"

$ 0C corresponds to "-"

$ 0E corresponds to "."

$ 0A, 0D corresponds to "_" (Blank)

$ 0F corresponds to flashing blank

TEXT DISPLAY LCA 200 Description 20

Operation of the LCA 200 (Modes 3, 4)

Example BIT Variable

Two inscriptions (strings) are aligned to the two log states of a bit.

For example the message text 253 combines texts with the three bit varia-

bles:

Variable VAR1 (address 160.1)

Variable VAR2 (address 160.2)

Variable VAR3 (address 160.3)

Definition of the BIT Variable (2 texts per variable)

Name 1: VAR 1

Format : BIT

Text if bit log 0 2: WITHOUT

Text if bit log 1 2: WITH

Address 3: 160.1

Definition of the BIT Variable (2 texts per variable)

Name 1: VAR 2

Format : BIT

Text if bit log 0 2: OFF

Text if bit log 1 2: ON

Address 3: 160.2

Definition of the BIT Variable (2 texts per variable)

Name 1: VAR 3

Format : BIT

Text if bit log 0 2: OFF

Text if bit log 1 2: ON

Address 3: 160.3

Definition of the Message Text 185

TRANSPORT jjjj

VENTILATION jjj COOL WATER jjj

The message bit 253 (address 33.5) is log 1 and the appertaining message

text is presented in the text display. The texts "ON, WITH" for log 1 or "OFF,

WITHOUT" for log 0 are blended in on a selection basis dependent of the

log state of the databits for the variables VAR1, VAR2, VAR3 (addresses

160.1, 160.2, 160.3).

1Name of the variable has maximum length of 16 cha-

racters

22 texts of the bit variable each one having a maximum

length of 40 characters are for log 0 and log 1

38 BIT variables can be delegated to each address

4Reserved place for the variables in the idle, message

or help text. The length of the field is determined by

the length of the longest text of the variable

2)* 3)*

1)*

* 1) VAR1

2) VAR2

3) VAR3

Message bit 33.5

BIT Variable 1 160.1

BIT Variable 2 160.2

BIT Variable 3 160.3

-TRANSPORT - ON

-VENTILATION -OFF -COOL WATER - OFF

Message bit 33.5

BIT Variable 1 160.1

BIT Variable 2 160.2

BIT Variable 3 160.3

Message bit 33.5

BIT Variable 1 160.1

BIT Variable 2 160.2

BIT Variable 3 160.3

Message bit 33.5

BIT Variable 1 160.1

BIT Variable 2 160.2

BIT Variable 3 160.3

161

160

6 5 4 3 2

255M

254M253M252M251M250M

263M262M261M260M259M258M

-TRANSPORT - OFF

-VENTILATION - ON -COOL WATER - OFF

-TRANSPORT - OFF

-VENTILATION - ON -COOL WATER - ON

-TRANSPORT - ON

-VENTILATION - ON -COOL WATER - ON

248M

256M

BIT

VAR1

249M

257M

BIT

VAR2

BIT

VAR3

= log 1

=log1

=log0

= log 1

=log0

=log1

=log0

= log 1

=log0

=log1

=log 1

= log 1

=log1

TEXT DISPLAY LCA 200 Description 21

Operation of the LCA 200 (Modes 3, 4)

Example STRING Variable

The 256 states of a byte in the data block are allocated to up to 256

inscriptions (strings). Our example shows 6 inscriptions.

The message text 250 (as in the example) combines commentary texts with

a STRING variable:

Variable STATUS (address 163)

Definition of a STRING Variable (max. 256 texts per variable)

Name 1: STATUS

Format : STRING

Text if STRING 0000 0000 2: SETTING UP

Text if STRING 0000 0001 2: SINGLE CLOCK

Text if STRING 0000 0010 2: SEMI-AUTOMATIC

Text if STRING 0000 0011 2: AUTOMATIC

Text if STRING 0000 0100 2: AUTOMATIC WITH PREHEAT

Text if STRING 0000 0101 2: AUTOMATIC WITH HEAT REGULATION

Address : 163

Definition of a message text 250

PACKUNG MACHINE

STATUS: jjjjjjjjjjjjjjjjjjjjjjjjjj

The message bit 250 (address 33.2) is log 1 and the appertaining message

text is presented in the display. Texts are blended in on a selection basis

SETTING UP, SINGLE CLOCK, SEMI-AUTOMATIC, AUTOMATIC, AUTOMATIC

WITH PREHEAT, AUTOMATIC WITH HEAT REGULATION

for the variable STATUS (address 163) dependent of the log state of the

data bits.

1Name of the variable has maximum length of 16 cha-

racters

2256 texts (maximum 40 characters long) of the

STRING variables: from log 0000 0000 to log 1111

1111

3Reserved place for the variables in the idle, message

or help text. The length of the field is determined by

the length of the longest text of the variable

-PACKING MACHINE

-STATUS: -SETTING UP

Message bit 33.2

STRING Variable 163

-PACKING MACHINE

-STATUS: -SINGLE TACT

-PACKING MACHINE

-STATUS: -SEMI-AUTOMATIC

Message bit 33.2

STRING Variable 163

-PACKING MACHINE

-STATUS: -AUTOMATIC

Message bit 33.2

STRING Variable 163

-PACKING MACHINE

-STATUS: -AUTOMATIC WITH PREHEAT

163

162

161

160

6 5 4 3 2

Message bit 33.2

STRING Variable 163

-PACKING MACHINE

-STATUS: -AUTOMATIC WITH HEAT REGULATION

STRING VARIABLE

255M254M253M252M251M250M

258M259M260M261M262M263M

248M

256M

249M

257M

Message bit 33.2

STRING Variable 163

= log 1

=log0000 0000

= log 1

=log0000 0001

Message bit 33.2

STRING Variable 163

= log 1

=log0000 0010

= log 1

=log0000 0011

= log 1

=log0000 0100

= log 1

=log0000 0101

TEXT DISPLAY LCA 200 Description 22

Operation of the LCA 200 (Modes 3, 4)

Example BINARY (BIN BYTE, BIN WORD, VBIN BYTE, VBIN WORD) Variable

Any byte or word from the data block can be presented as a decimal

number, and be selected as either without sign (BIN BYTE, BIN WORD),

with sign (VBIN BYTE, VBIN WORD), with or without pre-/post comma

positions, with or without pre-zeroes as well as having a limit on MIN/MAX

value . The message texts 248 and 256 (example) combine commentary

texts with BIN and VBIN variables:

BIN WORD variable NUMBER OF PIECES (address 160 + 161)

BIN BYTE variable CYLINDER NUMBER (address 163)

VBIN WORD variable TEMPERATURE (address 200 + 201)

VBIN BYTE variable POSITION (address 255)

Definition of the BIN BYTE Variables

Name 1: CYLINDER NUMBER

Format : BIN-1

Address : 163

Pre-comma positions : 2

Post comma positions : 0

Minimum : 0

Maximum : 99

Pre-zeroes : None

Definition of the BIN WORD Variables

Name 1: NUMBER OF PIECES

Format : BIN-2

Address 2: 160

Pre-comma positions : 4

Post comma positions : 0

Minimum : 0

Maximum : 9999

Pre-zeroes : None

Definition of the VBIN BYTE Variables

Name 1: TEMPERATURE

Format : VBIN BYTE

Address 2: 255

Pre-comma positions : 2

Post comma positions : 1

Minimum : -999

Maximum : +999

Pre-zeroes : Yes

1Name of the variable has a maximum length of 16

characters

2WORD variables always require two addresses

3Reserved place for the variables in the idle, message

and help texts

Message bit 34.4

BIN WORD Variable 160 (HIGH)

BIN WORD Variable 161 (LOW)

Message bit 34.4

BIN WORD Variable 160 (HIGH)

BIN WORD Variable 161 (LOW)

Message bit 34.4

BIN WORD Variable 160 (HIGH)

BIN WORD Variable 161 (LOW)

Message bit 33.0

BIN BYTE Variable 163

VBIN WORD Variable 200 (HIGH )

VBIN WORD Variable 201 (LOW)

VBIN BYTE Variable 255

Message bit 33.0

BIN BYTE Variable 163

VBIN WORD Variable 200 (HIGH)

VBIN WORD Variable 201 (LOW)

VBIN BYTE Variable 255

-PACKING MACHINE

-COMPLETED: -2081 -PIECES

-PACKING MACHINE

-COMPLETED: -2082 -PIECES

-PACKING MACHINE

-COMPLETED: -2083 -PIECES

-PACKING MACHINE

-TEMP: - 02,8 POS: - 0,81 CYLINDER -36

-PACKING MACHINE

-TEMP: + 12,4 POS: + 3,21 CYLINDER -4

6 5 4 3 2

255M254M253M252M251M250M

258M259M260M261M262M263M

248M

256M

249M

257M

BIN WORD VARIABLE BIT 0...7

BIN BYTE VARIABLE BIT 0...7

BIN WORD VARIABLE BIT 8...15

VBIN WORD VARIABLE BIT 0...7

VBIN WORD VARIABLE BIT 8...15

VBIN BYTE VARIABLE BIT 0...7

= log 1

=0000 1000

=0010 0001

= log 1

=0000 1000

=0010 0010

= log 1

=0000 1000

=0010 0011

= log 1

= 0010 0100

= 1111 1111

= 1010 1111

= 1110 0100

= log 1

= 0000 0100

= 0000 0001

= 0100 0001

= 0111 1100

255

201

200

163

162

161

160

TEXT DISPLAY LCA 200 Description 23

Operation of the LCA 200 (Modes 3, 4)

Definition of the VBIN WORD Variables

Name 1: POSITION

Format : VBIN WORD

Address 2: 200

Pre-comma positions : 1

Post comma positions : 2

Minimum : -458

Maximum : +299

Pre-zeroes : None

Definition of the Message Text 248

PACKING MACHINE

COMPLETED: jjjj PIECES

Definition of the Message Text 256

PACKING MACHINE

CYLINDER: jj

TEMPERATURE: jjj.j °C

POSITION: jj.jj

The message bit 256 (address 34.0) is log 1, and the appertaining message

text is presented in the text display. The actual number of pieces is display-

ed dependent of the BINARY value of the variable NUMBER OF PIECES

(addresses 160 + 161).

The message bit 248 (address 33.0) is log 1 and the appertaining message

text is presented in the text display. The actual number of pieces is display-

ed dependent of the BINARY value of the variable CYLINDER NUMBER

(address 163).

The actual temperature is displayed dependently of the BINARY value of

the variable TEMPERATURE (address 255).

The actual position is displayed dependently of the BINARY value of the

variable POSITION (address 200 + 201).

1Name of the variable has a maximum length of 16

characters

2WORD variables always require two addresses

3Reserved place for the variables in the idle, message

and help texts

1)*

* 1) NUMBER OF PIECES

2) CYLINDER NUMBER

3) TEMPERATURE

4) POSITION

2)*

Message bit 34.4

BIN WORD Variable 160 (HIGH)

BIN WORD Variable 161 (LOW)

Message bit 34.4

BIN WORD Variable 160 (HIGH)

BIN WORD Variable 161 (LOW)

Message bit 34.4

BIN WORD Variable 160 (HIGH)

BIN WORD Variable 161 (LOW)

Message bit 33.0

BIN BYTE Variable 163

VBIN WORD Variable 200 (HIGH )

VBIN WORD Variable 201 (LOW)

VBIN BYTE Variable 255

Message bit 33.0

BIN BYTE Variable 163

VBIN WORD Variable 200 (HIGH)

VBIN WORD Variable 201 (LOW)

VBIN BYTE Variable 255

-PACKING MACHINE

-COMPLETED: -2081 -PIECES

-PACKING MACHINE

-COMPLETED: -2082 -PIECES

-PACKING MACHINE

-COMPLETED: -2083 -PIECES

-PACKING MACHINE

-TEMP: - 02,8 POS: - 0,81 CYLINDER -36

-PACKING MACHINE

-TEMP: + 12,4 POS: + 3,21 CYLINDER -4

6 5 4 3 2

255M254M253M252M251M250M

258M259M260M261M262M263M

248M

256M

249M

257M

BIN WORD VARIABLE BIT 0...7

BIN BYTE VARIABLE BIT 0...7

BIN WORD VARIABLE BIT 8...15

VBIN WORD VARIABLE BIT 0...7

VBIN WORD VARIABLE BIT 8...15

VBIN BYTE VARIABLE BIT 0...7

= log 1

=0000 1000

=0010 0001

= log 1

=0000 1000

=0010 0010

= log 1

=0000 1000

=0010 0011

= log 1

= 0010 0100

= 1111 1111

= 1010 1111

= 1110 0100

= log 1

= 0000 0100

= 0000 0001

= 0100 0001

= 0111 1100

255

201

200

163

162

161

160

TEXT DISPLAY LCA 200 Description 24

1Name of the variable has a maximum length of 16

characters

4Reserved place for the variable in the idle, message or

help text

1) 2) 3)*

Operation of the LCA 200 (Modes 3, 4)

Example BCD Variable

The contents of any particular byte of a data block can be presented either

as one or two BCD numerals. The message text 259 (as in the example)

combines the commentary text with the BCD variable (length 5 digits):

BCD/DIGIT 0_1 (address 159)

BCD/DIGIT 2_3 (address 160)

BCD/DIGIT 4 (address 161)

Definition of the BCD Variables

Name 1: DIGIT 0_1

Format : BCD

Address : 159

Length of presentation : 2 positions

Name 1: DIGIT 2_3

Format : BCD

Address : 160

Length of presentation : 2 positions

Name 1: DIGIT 4

Format : BCD

Address : 161

Length of presentation : 1 position

Definition of the Message Text 259

HEATING 1

BOILER PRESSURE: jjj . jj bar

The message bit 259 (address 33.3) is log 1 and the appertaining message

text is presented in the text display. The actual pressure is displayed in bar

dependently of the value of the BCD variable DIGIT 0...4 (address

159...161).

If the BCD variable is only of one place, the lower valued nibble of the byte

is evaluated. The higher valued nibble can, for example, be used for

another variable.

Message bit 34.3

BCD Variable 159 (Digit 0_1)

BCD Variable 160 (Digit 2_3)

BCD Variable 161 (Digit 4)

Message bit 34.3

BCD Variable 159 (Digit 0_1)

BCD Variable 160 (Digit 2_3)

BCD Variable 161 (Digit 4)

Message bit 34.3

BCD Variable 159 (Digit 0_1)

BCD Variable 160 (Digit 2_3)

BCD Variable 161 (Digit 4)

-HEATING 1

-BOILER PRESSURE: -120-. -00-bar

-HEATING 1

-BOILER PRESSURE: -239-. -14-bar

-HEATING 1

-BOILER PRESSURE: -158-.-08-bar

6 5 4 3 2

= log 1

=0001 0010

=0000 0000

= log 1

=0010 0011

=1001 0001

=0000 0100

= log 1

=0001 0101

=1000 0000

=0000 1000

1 0

255M254M253M252M251M250M

258M259M260M261M262M263M

249M248M

256M257M

BCD VARIABLE DIGIT 0_1

BCD VARIABLE DIGIT 2_3

BCD VARIABLE DIGIT 4

161

160

159

* 1) DIGIT 0_1

2) DIGIT 2_3

3) DIGIT 4

TEXT DISPLAY LCA 200 Description 25

Operation of the LCA 200 (Modes 3, 4)

Example ASCII Variable

Any particular byte of the data block can be presented as ASCII character

(refer to character list).

The message text 250 (for example), combines the commentary texts with

several ASCII variables:

Variable STATUS (address 163)

Definition of the ASCII Variable (64 texts per variable)

Name 1: NAME 1

Format : ASCII

Address : 163

Name 1: NAME 2

Format : ASCII

Address : 164

Name 1: NAME 3

Format : ASCII

Address : 165

Name 1: NAME 4

Format : ASCII

Address : 166

Definition of the Message Text

182

PACKING MACHINE

OPERATOR: jjjj

The message bit 250 (address 32.2) is log 1 and the appertaining text is

presented in the text display. The corresponding ASCII characters (refer to

character list) are dependent of the contents of the ASCII variables NAME

1 - NAME 4 (address 163...166).

1Name of the variable has a maximum length of 16

characters

2Reserved place for the variable in the idle, message or

help text.

Message bit 33.2

ASCII Variable 163

ASCII Variable 164

ASCII Variable 165

ASCII Variable 166

Message bit 33.2

ASCII Variable 163

ASCII Variable 164

ASCII Variable 165

ASCII Variable 166

Message bit 33.2

ASCII Variable 163

ASCII Variable 164

ASCII Variable 165

ASCII Variable 166

Message bit 33.2

ASCII Variable 163

ASCII Variable 164

ASCII Variable 165

ASCII Variable 166

-PACKING MACHINE

-OPERATOR: -KNUT

-PACKING MACHINE

-OPERATOR: -SWEN

-PACKING MACHINE

-OPERATOR: -OTTO

-PACKING MACHINE

-OPERATOR: -KARL

163

162

161

160

6 5 4 3 2

255M254M253M252M251M250M

258M259M260M261M262M263M

= log 1

=0100 1011 "K"

= 0100 1110 "N"

= 0101 0101 "U"

= 0101 0100 "T"

= log 1

=0100 1011 "S"

= 0100 1110 "W"

= 0101 0101 "E"

= 0101 0100 "N"

= log 1

=0100 1011 "O"

= 0100 1110 "T"

= 0101 0101 "T"

= 0101 0100 "O"

= log 1

=0100 1011 "K"

= 0100 1110 "A"

= 0101 0101 "R"

= 0101 0100 "L"

1 0

249M248M

256M257M

NAME 1

166

165

164

NAME 4

NAME 2

NAME 3

TEXT DISPLAY LCA 200 Description 26

The Diagnostic Operation of the LCA 200

If problems should arise during the commissioning phase of the PLC and

LCA 200, then first check over the parallel connection from the PLC to the

LCA.

In order to check over the drive program from the PLC to the LCA, a

diagnostic module is available in the LCA and it can be switched on or off

through the parameterization LCAPRO software under the menu heading

"Transfer-Diagnoses". During the initial commissioning phase it is recom-

mended to install a time delay in the PLC program between the clock

flanks, as for example, with a PLC timer.

After switching on the diagnostic operation, a definite text depending on

the transfered modes, appears in the display:

Mode 1:

DIAGNOSTIC1 INPUTS: XXXXXXXXXX

SELECTED PLANE: X TEXTNR.: XX (X)

In the top line, the inputs of the LCA 200 are displayed in order of sequence

(T, S, D7...D0, therefore 12...3).

If the corresponding input is log 0, an 0 appears.

If the corresponding input is log 1, a 1 appears.

In the lower line you will see the currently active plane and text number.

If several inputs are log 1, the text number alters with the parameterized

"cycle time".

Text numbers are filed in brackets whether it concerns a idle text "R" or

a message text "M".

Mode 2:

DIAGNOSTIC2 INPUTS: XXXXXXXXXX

TEXTNR.: XXXX

In the top line, the inputs of the LCA 200 are presented in order of sequen-

ce (T, S, D7, therefore terminals 12...3).

If the corresponding input is log 0, an 0 appears.

If the corresponding input is log 1, a 1 appears.

You’ll see the currently activated text number in the bottom line.

TEXT DISPLAY LCA 200 Description 27

The Diagnostic Operation of the LCA 200

Mode 3:

DIAGNOSTIC3 ADDR.: XXX D7...D0: XXXXXXXXXX

LAST CHANGE ADDR.: XXX D7...D0: XXXXXXXXXX

Every data transfer is displayed in the top line. The address and the apper-

taining date is displayed with each change of clock. In order that every

clock edge is visibly recognized, the displayed value always moves one

place to the left or one place to the right.

In respect of the contents of the LCA 200, the bottom line only shows

amendments to data currently being transfered. Whereby it is easy to see

if the drive program is working correctly.

Mode 4:

DIAGNOSTIC4 ADDR.: XXX D7...D0: XXXXXXXXXX

LAST CHANGE ADDR.: XXX D7...D0: XXXXXXXXXX

Every data transfer is displayed in the top line. The address and the accom-

panying date is displayed with every change in clock. In order that the every

clock edge is visibly recognized, the displayed value always moves one

place to the left or one place to the right. If only one address is transfered

(set synchronous bit), the character "********" appears in the field D7...D0.

With respect to the contents of the LCA 200, the bottom lines only shows

ammendments to data currently being transfered. Whereby it is easy to see

if the drive program is working correctly.

TEXT DISPLAY LCA 200 Description 28

Switching Time Differences of the PLC Outputs

Should there be large time differences between the switching on and

switching off (more than 100µs), the clock delay time in the LCAPRO

software (menu heading "PROJECT", sub menu heading "TIMES", must

be increased.

With the Siemens digital outputs, the clock delay time should be set to a

value M 1000 µs. The clock delay time should not be larger than 1/3 of the

minimum PLC cycle.

LCA 200

t ≥ 100 µS PLC output with

change from 1 to 0

Other PLC output with

change from 0 to 1

LCD DISPLAY LED BACKGROUND ILLUMINATION

2 LINES EACH WITH 40 CHARACTERS

TEXT DISPLAY LCA 200 Description 29

PLC Cycle Time m 1 ms

If the cycle time of the PLC is m 1 ms or the output switch delay M the cycle

time, a "delay" must be programmed. Only the drive program (inner loop)

is called every n-PLC cycle.

L200_e L200 E

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