L200_e L200 E

User Manual: l200_e

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LCA 200
Text Display

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
VersionLAUER
2/06.94
© by SYSTEME
GMBH & CO. KG • KELTERSTR. 59 • D 72669 UNTERENSINGEN • TEL 07022/9660-0 • FAX 07022/9660-103
© Systeme Lauer GmbH & Co. KG

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
■ 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

LCA 200

■ 4 Ways of Operating (Modes)
Direct drive, binary drive, cyclical transfer,
selective transfer
■ 3 Message Formats
Last message, initial message, cyclical display
■ 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 LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

Programming the LCA 200 text display is
done with a PC (MSDOS). We supply the
LCAPRO planning software for this. The individual project data and the firmware are
loaded per down load into the EEPROM.

LCAPRO

RUN

LCA 200.
SERIAL-NR

LCA 200 back panel

▲
BIT
STATUS 24V
TERMINAL

STOP
CONTRAST

24V 0V D0 D1 D2 D3 D4 D5 D6 D7 S T
1 2 3 4 5 6 7 8 9 10 11 12

COM

FUSE
400mAT

The connection from the PC (COM1 or
COM2) to the LCA 200 is done with the LCA
733 cable

10 PLC outputs for max. 1024 messages

The LCA 200 fits
every PLC

CONTENTS OF THE LCA 200 MANUAL

Topics

Pages

The text display connections

Technical data

Dimensions and cross section of front panel

The character table

General interference safeguard precautions for LCA devices

Installation instructions

Current supply

The Communication Concept

Mode 1: Direct drive

Mode 2: Binary drive

Mode 3: Cyclical transfer

Mode 4: Selective transfer

Operation of the LCA 200 (Modes 3, 4)

The function area of LCA 200 functions

The priorities of the LCA 200

The text organization of the LCA 200

The variables of the LCA 200

Example of BIT variable

Example of STRING variable

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

Example of BCD variable

Example of ASCII variable

The diagnostic operation of the LCA 200

Time switch differences of the PLC outputs

PLC Cycle Time ≤ 1 ms

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.

The Text Display Connections

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

Call help texts
Call message texts
Supply variables
Operation of the text display

T (CLOCK) or D9

D7 (DATALINE 7)
S (SYNCHRONIZATION) or D8

D6 (DATALINE 6)

D5 (DATALINE 5)

D4 (DATALINE 4)

D3 (DATALINE 3)

D2 (DATALINE 2)

D1 (DATALINE 1)

D0 (DATALINE 0)

LCA 200

+ 24VDC (19...33V)

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:

PLC OUTPUTS
OPERATING VOLTAGE

TEXT DISPLAY LCA 200

Description

Technical Details
Operating voltage
Signal voltage
Power dissipation
Connections
Safeguard

+19 ... 33V= (DC)
+19 ... 33V= (DC)
6W
12pin strip connection, plug
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

Dimensions and Front Cross-section

LCA 200

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

RUN

LCA 200.

STOP

SERIAL-NR:

CONTRAST

24V 0V D0 D1 D2 D3 D4 D5 D6 D7 S T
1 2 3 4 5 6 7 8 9 10 11 12

COM

FUSE
400mAT

48,0 mm

216,0 mm

LCA 200 Rear panel

PLC Connection/supply

40 mm

(+1)

208 mm

(+1)

Mounting depth 40 mm

TEXT DISPLAY LCA 200

Description

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 characters.

TEXT DISPLAY LCA 200

Description

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 planning:

Power supply

Example of a suppressor with filter switch for large interference levels

+24 V

Power pack
unstable or
stablized

E
P

LCA 200

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.

Separation
point

According to the VDE 0113, it must be possible to measure the current to earth
at the separation point.

3. The built-in safety and relais coil inductances in the same switch cabinet
must be switched on with the corresponding recovery diodes, resprectively 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 recommend 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.

TEXT DISPLAY LCA 200

Description

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!

>250 mm

PERTURBING RADIATION SOURCE

>250 mm

TEXT DISPLAY
LCA 200

PERTURBING RADIATION SOURCE

Feed lines to the LCA 200 should not be lead in along with high tension
or high frequency cables.

>250 mm

PERTURBING RADIATION SOURCE

TEXT DISPLAY LCA 200

Description

Current Supply
To maintain stable operation of the LCA 200 text display, the following
information appertaining to current supply should be taken into consideration:
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
per DIN 19240

Current consumption

TEXT DISPLAY LCA 200

UB
UBmax
UBmin

: 24 VDC m ( 5% residual ripples)
: 33 VDC
: 19 VDC
: ~200 mA (to +24VDC)

Description

The Communication Concept

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

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 definitions 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 software. This diagnostic module provides a means of assistance in facilitating
the primary commissioning and in the search for faults in the drive software.

MESSAGE 8, 17
SELECTION OF PLANE 0, 1

MESSAGE 7, 16

MESSAGE 6, 15

MESSAGE 5, 14

MESSAGE 4, 13

MESSAGE 3, 12

MESSAGE 2, 11

MESSAGE 1, 10

MESSAGE 0, 9

LCA 200

+ 24VDC (19...33V)

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.

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.
PLC OUTPUTS
OPERATING VOLTAGE

Mode 1: Direct drive

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 available.
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.

TEXT DISPLAY LCA 200

Description

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).

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

LCA 200

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.

T = BIN (2 ) = 512

S = BIN (2 ) = 256

D7 = BIN (2 6 ) = 128

D6 = BIN (2 ) = 64

D5 = BIN (2 ) = 32

D4 = BIN (2 ) = 16

D3 = BIN (2 ) = 8

D2 = BIN (2 ) = 4

D1 = BIN (2 ) = 2

D0 = BIN (2 ) = 1

+ 24VDC (19...33V)

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

PLC OUTPUTS
OPERATING VOLTAGE

Mode 2: Binary drive

TEXT DISPLAY LCA 200

Description

The Communication Concept
Mode 3: Cyclical Transfer (Multiplex with Clock and Synchronization)
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).

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

LCA 200

The text display absorbs the applied bytes (data bits D0...7) with every
positive as well as negative edge of the clock bit.
10

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
0.
It is absolutely essential as the distance between two clock edges amounts
to at least a millisecond.

T (CLOCK) or D9

D7 (DATALINE 7)
S (SYNCHRONIZATION) or D8

D6 (DATALINE 6)

D5 (DATALINE 5)

D4 (DATALINE 4)

D3 (DATALINE 3)

D2 (DATALINE 2)

D1 (DATALINE 1)

D0 (DATALINE 0)

+ 24VDC (19...33V)

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.

PLC OUTPUTS
OPERATING VOLTAGE

Mode 3: Cyclical transfer

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.

TEXT DISPLAY LCA 200

Description

The Communication Concept

LCA 200

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.

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

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.

15M

14M

13M

12M

11M

255M 254M 253M 252M

263M 262M 261M

271M 270M 269M 268M

10M

251M 250M 249M 248M

260M 259M 258M 257M 256M
267M 266M 265M 264M

127

1007M 1006M 1005M 1004M 1003M 1002M 1001M 1000M

128

1015M 1014M 1013M 1012M 1011M 1010M 1009M 1008M

129

1023M 1022M 1021M 1020M 1019M 1018M 1017M 1016M

BIT VARIABLES
STRING VARIABLES
BCD VARIABLES
BIN VARIABLES
VBIN VARIABLES
ASCII VARIABLES

VARIABLES

Cyclical Transfer of
addresses 0 to 255

MAX. ADDRESS RANGE

Example:

MESSAGE TEXTS

FUNCTION

DATABIT
7

255
258

TEXT DISPLAY LCA 200

M = MESSAGE TEXTS # 258 (ADDRESSES 34.2)

Description

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
;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.

;Reset the address
;Zero run synchronization
S = set log 1

;Load 8 databits corresponding to the selected addresses
from the data array, e.g. by indirect addressing.

TEXT DISPLAY LCA 200

Description

The Communication Concept
Mode 4: Selective Transfer (Multiplex with Clock and Synchronization)

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

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 beginning. All the subsequent bytes can be transfered directly one after another,
as the text display automatically increments the address pointer after every
clock.

T (CLOCK) or D9

D7 (DATALINE 7)
S (SYNCHRONIZATION) or D8

D6 (DATALINE 6)

D5 (DATALINE 5)

D4 (DATALINE 4)

D3 (DATALINE 3)

D2 (DATALINE 2)

D1 (DATALINE 1)

+ 24VDC (19...33V)

D0 (DATALINE 0)

LCA 200

It is essential that there is a minimum interval of a millisecond between two
clock flanks.
PLC OUTPUTS
OPERATING VOLTAGE

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.

Mode 4: Selective transfer

Advantage: Fast reaction. However the PLC program is more complicated and requires more execution time than the cyclical transfer.

TEXT DISPLAY LCA 200

Description

The Communication Concept

LCA 200

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.

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

If the synchronous input S remains log 0, the address pointer (+1) is increased 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. Whereby the creation of a PLC program is made easier.

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

MESSAGE TEXTS

15M

14M

13M

12M

11M

10M

255M 254M 253M 252M 251M 250M 249M 248M

263M 262M 261M

271M 270M 269M 268M 267M 266M 265M 264M

260M 259M 258M 257M 256M

127

1007M 1006M 1005M 1004M 1003M 1002M 1001M 1000M

128

1015M 1014M 1013M 1012M 1011M 1010M 1009M 1008M

129

1023M 1022M 1021M 1020M 1019M 1018M 1017M 1016M

BIT VARIABLES
STRING VARIABLES
BCD VARIABLES
BIN VARIABLES
VBIN VARIABLES
ASCII VARIABLES

255
258

TEXT DISPLAY LCA 200

VARIABLES

MAX. ADDRESS RANGE

FUNCTION

DATABIT
7

M = MESSAGE TEXTS # 258 (ADDRESSES 34.2)

Description

The Communication Concept
Flow diagram in Mode 4
E

Status bit 0:log 1 = address pointer is positioned
correctly
H

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

TEXT DISPLAY LCA 200

Description

Operation of the LCA 200 (Modes 3, 4)
ADDRESS 00
BIT 0

BIT 1

BIT 2

BIT 3

BIT 4

BIT 5

BIT 6

BIT 7

Call Help Texts H
The help text, having been preselected with
the bits H0...H3 is called with log 1.
Quit Flashing Texts Q
The flashing message text currently being presented 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.
Leaf Forwards in the Message Memory ▼
Leafing forward is done from the older to the
next latest message in the active display memory (information or fault) with the positive
edge (0/1).
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).
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.
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.
Suppress Information UH
Active information are suppressed with log 1
(messages).
Suppress Faults US
Active faults are suppressed with log 1 (messages).

TEXT DISPLAY LCA 200

ADDRESS 01
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 registered messages in the message memory*) is
determined with these 2 bits. The following
combinations are possible:
F1

0
0
1
1

0
1
0
1

Last value message
First value message
Cyclical display
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.

Description

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.
7

ab
H3

General Outline of the LCA 200 Functions:
SYMBOL
H
Q
▼
▲
Z
i
UH
US
H0
H1
H2
H3
F0
F1
R0
R1

=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=

ADR/BIT
00.0
00.1
00.2
00.3
00.4
00.5
00.6
00.7
01.0
01.1
01.2
01.3
01.4
01.5
01.6
01.7

FUNCTION
Calling a help text
Quitting a flashing text
Leafing forwards in active message memory
Leafing backwards in active message memory
Call additional information (lines 3..32)
Call main information (lines 1 + 2)
Suppression of information
Suppression of faults
Selection of the help text bit 0
Selection of the help text bit 1
Selection of the help text bit 2
Selection of the help text bit 3
Selection of the message format bit 0
Selection of the message format bit 1
Selection of the idle text bit 0
Selection of the idle text bit 1

Operation of the LCA 200 (Modes 3, 4)
Priorities of the LCA 200
The LCA 200 possesses 4 priority stages:
- Idle priority
- Info priority
- Fault priority
- Help priority

(priority 0 = lowest priority)
(priority 1)
(priority 2)
(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

Operation of the LCA 200 (Modes 3, 4)

The Data Block:

MESSAGE TEXTS

15M

14M

13M

12M

11M

10M

255M 254M 253M 252M

263M 262M 261M 260M 259M 258M 257M 256M

271M 270M 269M 268M

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).

251M 250M 249M 248M

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.

267M 266M 265M 264M

127

1007M 1006M 1005M 1004M 1003M 1002M 1001M 1000M

128

1015M 1014M 1013M 1012M 1011M 1010M 1009M 1008M

129

1023M 1022M 1021M 1020M 1019M 1018M 1017M 1016M

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

BIT VARIABLES
STRING VARIABLES
BCD VARIABLES
BIN VARIABLES
VBIN VARIABLES
ASCII VARIABLES

VARIABLES

MAX. ADDRESS RANGE

FUNCTION

DATABIT

Calculation Formula:
Address a.b. -> Message text
((a-2) x 8) + b
Example:
34.2 -> 258

255
258

TEXT DISPLAY LCA 200

M = MESSAGE TEXTS # 258 (ADDRESSES 34.2)

Description

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 maximum length of 40 characters. The string itself may not have any
further variable. The longest of both strings determines by the reserved 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 allocated to each binary value of a byte in the data block.

Operation of the LCA 200 (Modes 3, 4)

NUMERICAL VARIABLES
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 parameterized and lies between 0...255. Pre-zeroes as well as pre-commas
and post comma positions can be parameterized. If the value is outside the MIN/MAX values, an inverse field will appear.
BIN WORD Variable
The transfered value at any particular word in the data block (2 consecutive 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 parameterized and lies between -128 and +127. Pre-zeroes, as well as precomma and post comma positions can be parameterized. If the value
is outside the MIN/MAX value, an inverse field will appear.

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 individual (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 responsible 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.

VBIN WORD Variable
The transfered value at any particular word in the data block (2 consecutive 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 pseudotetrades:
$ 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

Operation of the LCA 200 (Modes 3, 4)
Example BIT Variable
Message bit 33.5
BIT Variable 1 160.1
BIT Variable 2 160.2
BIT Variable 3 160.3

= log 1
=log1
=log0
=log0

-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

= log 1
=log0
=log1
=log0

-TRANSPORT - OFF
-VENTILATION - ON -COOL WATER - OFF

Message bit 33.5
BIT Variable 1 160.1
BIT Variable 2 160.2
BIT Variable 3 160.3

= log 1
=log0
=log1
=log 1

-TRANSPORT - OFF
-VENTILATION - ON -COOL WATER - ON

Message bit 33.5
BIT Variable 1 160.1
BIT Variable 2 160.2
BIT Variable 3 160.3

= log 1
=log1
=log1
=log1

-TRANSPORT - ON
-VENTILATION - ON

For example the message text 253 combines texts with the three bit variables:
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
Format
Text if bit log 0 2
Text if bit log 1 2
Address 3

-COOL WATER - ON

255M

254M 253M 252M

251M 250M

249M 248M

263M 262M 261M 260M

259M 258M

257M 256M

: VAR 1
: BIT
: WITHOUT
: WITH
: 160.1

Definition of the BIT Variable (2 texts per variable)
Name 1
Format
Text if bit log 0 2
Text if bit log 1 2
Address 3

160

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

: VAR 2
: BIT
: OFF
: ON
: 160.2

Definition of the BIT Variable (2 texts per variable)
Name 1
Format
Text if bit log 0 2
Text if bit log 1 2
Address 3

BIT
BIT
BIT
VAR3 VAR2 VAR1

: VAR 3
: BIT
: OFF
: ON
: 160.3

Definition of the Message Text 185

161

1)*

1 Name of the variable has maximum length of 16 characters
2 2 texts of the bit variable each one having a maximum
length of 40 characters are for log 0 and log 1
3 8 BIT variables can be delegated to each address
4 Reserved 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

TEXT DISPLAY LCA 200

Description

TRANSPORT jjjj
2)*
VENTILATION
jjj
4

3)*

COOL WATER jjj

* 1) VAR1
2) VAR2
3) VAR3

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).
20

Operation of the LCA 200 (Modes 3, 4)
Example STRING Variable
Message bit 33.2
= log 1
STRING Variable 163 =log0000 0000

-PACKING MACHINE
-STATUS: -SETTING UP

Message bit 33.2
= log 1
STRING Variable 163 =log0000 0001

-PACKING MACHINE
-STATUS: -SINGLE TACT

Message bit 33.2
= log 1
STRING Variable 163 =log0000 0010

-PACKING MACHINE
-STATUS: -SEMI-AUTOMATIC

Message bit 33.2
= log 1
STRING Variable 163 =log0000 0011

-PACKING MACHINE
-STATUS: -AUTOMATIC

Message bit 33.2
= log 1
STRING Variable 163 =log0000 0100

-PACKING MACHINE
-STATUS: -AUTOMATIC WITH PREHEAT

Message bit 33.2
= log 1
STRING Variable 163 =log0000 0101

-PACKING MACHINE
-STATUS: -AUTOMATIC WITH HEAT REGULATION

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
Format
Text if STRING 0000 0000 2
Text if STRING 0000 0001 2
Text if STRING 0000 0010 2
Text if STRING 0000 0011 2
Text if STRING 0000 0100 2
Text if STRING 0000 0101 2
Address

255M 254M 253M 252M 251M

250M 249M 248M

263M 262M 261M 260M 259M

258M 257M 256M

: STATUS
: STRING
: SETTING UP
: SINGLE CLOCK
: SEMI-AUTOMATIC
: AUTOMATIC
: AUTOMATIC WITH PREHEAT
: AUTOMATIC WITH HEAT REGULATION
: 163

Definition of a message text 250
PACKUNG MACHINE
STATUS: jjjjjjjjjjjjjjjjjjjjjjjjjj
3

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
160

SETTING UP, SINGLE CLOCK, SEMI-AUTOMATIC, AUTOMATIC, AUTOMATIC
WITH PREHEAT, AUTOMATIC WITH HEAT REGULATION

161

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

162
163

STRING VARIABLE

TEXT DISPLAY LCA 200

1 Name of the variable has maximum length of 16 characters
2 256 texts (maximum 40 characters long) of the
STRING variables: from log 0000 0000 to log 1111
1111
3 Reserved 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

Description

Operation of the LCA 200 (Modes 3, 4)
Example BINARY (BIN BYTE, BIN WORD, VBIN BYTE, VBIN WORD) Variable

Message bit 34.4
BIN WORD Variable 160 (HIGH)
BIN WORD Variable 161 ( LOW)

= log 1
=0000 1000
=0010 0001

-PACKING MACHINE
-COMPLETED: -2081 -PIECES

Message bit 34.4
BIN WORD Variable 160 (HIGH)
BIN WORD Variable 161 (LOW)

= log 1
=0000 1000
=0010 0010

-PACKING MACHINE
-COMPLETED: -2082 -PIECES

Message bit 34.4
BIN WORD Variable 160 (HIGH)
BIN WORD Variable 161 (LOW)

= log 1
=0000 1000
=0010 0011

-PACKING MACHINE
-COMPLETED: -2083 -PIECES

Message bit 33.0
BIN BYTE Variable 163
VBIN WORD Variable 200 (HIGH )
VBIN WORD Variable 201 (LOW)
VBIN BYTE Variable 255

= log 1
= 0010 0100
= 1111 1111
= 1010 1111
= 1110 0100

Message bit 33.0
BIN BYTE Variable 163
VBIN WORD Variable 200 (HIGH)
VBIN WORD Variable 201 (LOW)
VBIN BYTE Variable 255

= log 1
= 0000 0100
= 0000 0001
= 0100 0001
= 0111 1100

-PACKING MACHINE
-TEMP: - 02,8 POS: - 0,81

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)

CYLINDER -36

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

255M 254M 253M

252M 251M

250M 249M 248M

263M 262M 261M

260M 259M

258M 257M

BIN WORD VARIABLE BIT 8...15

161

BIN WORD VARIABLE BIT 0...7

Name 1
Format
Address
Pre-comma positions
Post comma positions
Minimum
Maximum
Pre-zeroes

160

Definition of the BIN BYTE Variables

256M

Definition of the BIN WORD Variables
Name 1
Format
Address 2
Pre-comma positions
Post comma positions
Minimum
Maximum
Pre-zeroes

162
163

BIN BYTE VARIABLE BIT 0...7

200

VBIN WORD VARIABLE BIT 8...15

201

VBIN WORD VARIABLE BIT 0...7

255

VBIN BYTE VARIABLE BIT 0...7

TEXT DISPLAY LCA 200

: CYLINDER NUMBER
: BIN-1
: 163
:2
:0
:0
: 99
: None
: NUMBER OF PIECES
: BIN-2
: 160
:4
:0
:0
: 9999
: None

Definition of the VBIN BYTE Variables
1 Name of the variable has a maximum length of 16
characters
2 WORD variables always require two addresses
3 Reserved place for the variables in the idle, message
and help texts

Description

Name 1
Format
Address 2
Pre-comma positions
Post comma positions
Minimum
Maximum
Pre-zeroes

: TEMPERATURE
: VBIN BYTE
: 255
:2
:1
: -999
: +999
: Yes

Operation of the LCA 200 (Modes 3, 4)
Definition of the VBIN WORD Variables
Message bit 34.4
BIN WORD Variable 160 (HIGH)
BIN WORD Variable 161 ( LOW)

= log 1
=0000 1000
=0010 0001

-PACKING MACHINE
-COMPLETED: -2081 -PIECES

Message bit 34.4
BIN WORD Variable 160 (HIGH)
BIN WORD Variable 161 (LOW)

= log 1
=0000 1000
=0010 0010

-PACKING MACHINE
-COMPLETED: -2082 -PIECES

Message bit 34.4
BIN WORD Variable 160 (HIGH)
BIN WORD Variable 161 (LOW)

= log 1
=0000 1000
=0010 0011

-PACKING MACHINE
-COMPLETED: -2083 -PIECES

Message bit 33.0
BIN BYTE Variable 163
VBIN WORD Variable 200 (HIGH )
VBIN WORD Variable 201 (LOW)
VBIN BYTE Variable 255

= log 1
= 0010 0100
= 1111 1111
= 1010 1111
= 1110 0100

Message bit 33.0
BIN BYTE Variable 163
VBIN WORD Variable 200 (HIGH)
VBIN WORD Variable 201 (LOW)
VBIN BYTE Variable 255

= log 1
= 0000 0100
= 0000 0001
= 0100 0001
= 0111 1100

-PACKING MACHINE
-TEMP: - 02,8 POS: - 0,81

Name 1
Format
Address 2
Pre-comma positions
Post comma positions
Minimum
Maximum
Pre-zeroes
CYLINDER -36

Definition of the Message Text 248
PACKING MACHINE
1)*
COMPLETED: jjjj PIECES

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

255M 254M 253M

252M 251M

250M 249M 248M

263M 262M 261M

260M 259M

258M 257M

160

BIN WORD VARIABLE BIT 8...15

161

BIN WORD VARIABLE BIT 0...7

Definition of the Message Text 256
PACKING MACHINE
2)*
CYLINDER:
jj
TEMPERATURE: jjj.j °C
POSITION:
jj.jj
3

256M

VBIN WORD VARIABLE BIT 8...15

201

VBIN WORD VARIABLE BIT 0...7

255

VBIN BYTE VARIABLE BIT 0...7

TEXT DISPLAY LCA 200

NUMBER OF PIECES
CYLINDER NUMBER
TEMPERATURE
POSITION

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 displayed dependent of the BINARY value of the variable CYLINDER NUMBER
(address 163).

BIN BYTE VARIABLE BIT 0...7

200

* 1)
2)
3)
4)

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 displayed dependent of the BINARY value of the variable NUMBER OF PIECES
(addresses 160 + 161).

162
163

: POSITION
: VBIN WORD
: 200
:1
:2
: -458
: +299
: None

The actual temperature is displayed dependently of the BINARY value of
the variable TEMPERATURE (address 255).
1 Name of the variable has a maximum length of 16
characters
2 WORD variables always require two addresses
3 Reserved place for the variables in the idle, message
and help texts

Description

The actual position is displayed dependently of the BINARY value of the
variable POSITION (address 200 + 201).

Operation of the LCA 200 (Modes 3, 4)
Example BCD Variable
Message bit 34.3
BCD Variable 159 (Digit 0_1)
BCD Variable 160 (Digit 2_3)
BCD Variable 161 (Digit 4)

= log 1
=0001 0010
=0000 0000
=0000 0000

Message bit 34.3
BCD Variable 159 (Digit 0_1)
BCD Variable 160 (Digit 2_3)
BCD Variable 161 (Digit 4)

= log 1
=0010 0011
=1001 0001
=0000 0100

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

BCD/DIGIT 0_1 (address 159)
BCD/DIGIT 2_3 (address 160)
BCD/DIGIT 4
(address 161)

-HEATING 1
-BOILER PRESSURE: -239-. -14-bar

Definition of the BCD Variables

= log 1
=0001 0101
=1000 0000
=0000 1000

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):

-HEATING 1
-BOILER PRESSURE: -158-.-08-bar

255M 254M 253M 252M 251M 250M 249M

248M

263M 262M 261M 260M 259M 258M 257M

256M

Name 1
Format
Address
Length of presentation

: DIGIT 0_1
: BCD
: 159
: 2 positions

Name 1
Format
Address
Length of presentation

: DIGIT 2_3
: BCD
: 160
: 2 positions

Name 1
Format
Address
Length of presentation

: DIGIT 4
: BCD
: 161
: 1 position

Definition of the Message Text 259
159

BCD VARIABLE DIGIT 0_1

160

BCD VARIABLE DIGIT 2_3

161

HEATING 1
1) 2)
3)*
BOILER PRESSURE: jjj . jj bar
2

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).

BCD VARIABLE DIGIT 4

1 Name of the variable has a maximum length of 16
characters
4 Reserved place for the variable in the idle, message or
help text

TEXT DISPLAY LCA 200

* 1) DIGIT 0_1
2) DIGIT 2_3
3) DIGIT 4

Description

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.

Operation of the LCA 200 (Modes 3, 4)
Example ASCII Variable
Message bit 33.2
ASCII Variable 163
ASCII Variable 164
ASCII Variable 165
ASCII Variable 166

= log 1
=0100 1011 "K"
= 0100 1110 "N"
= 0101 0101 "U"
= 0101 0100 "T"

Message bit 33.2
ASCII Variable 163
ASCII Variable 164
ASCII Variable 165
ASCII Variable 166

= log 1
=0100 1011 "S"
= 0100 1110 "W"
= 0101 0101 "E"
= 0101 0100 "N"

Message bit 33.2
ASCII Variable 163
ASCII Variable 164
ASCII Variable 165
ASCII Variable 166

= log 1
=0100 1011 "O"
= 0100 1110 "T"
= 0101 0101 "T"
= 0101 0100 "O"

-PACKING MACHINE
-OPERATOR: -OTTO

Message bit 33.2
ASCII Variable 163
ASCII Variable 164
ASCII Variable 165
ASCII Variable 166

= log 1
=0100 1011 "K"
= 0100 1110 "A"
= 0101 0101 "R"
= 0101 0100 "L"

-PACKING MACHINE
-OPERATOR: -KARL

Any particular byte of the data block can be presented as ASCII character
(refer to character list).

-PACKING MACHINE
-OPERATOR: -KNUT

The message text 250 (for example), combines the commentary texts with
several ASCII variables:

-PACKING MACHINE
-OPERATOR: -SWEN

Variable STATUS (address 163)
Definition of the ASCII Variable (64 texts per variable)

255M 254M 253M 252M

251M 250M 249M 248M

263M 262M 261M 260M

259M 258M 257M 256M

Name 1
Format
Address

: NAME 1
: ASCII
: 163

Name 1
Format
Address

: NAME 2
: ASCII
: 164

Name 1
Format
Address

: NAME 3
: ASCII
: 165

Name 1
Format
Address

: NAME 4
: ASCII
: 166

Definition of the Message Text 182
PACKING MACHINE
OPERATOR: jjjj
2

160
161

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).

162
163

NAME 1

164

NAME 2

165

NAME 3

166

NAME 4

TEXT DISPLAY LCA 200

1 Name of the variable has a maximum length of 16
characters
2 Reserved place for the variable in the idle, message or
help text.

Description

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 recommended 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
SELECTED PLANE: X

INPUTS: XXXXXXXXXX
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 sequence (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

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 appertaining 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 accompanying 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

Switching Time Differences of the PLC Outputs

LCA 200

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.

LCD DISPLAY LED BACKGROUND ILLUMINATION
2 LINES EACH WITH 40 CHARACTERS

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.

H
L
H

t ≥ 100 µS

PLC output with
change from 1 to 0
Other PLC output with
change from 0 to 1

TEXT DISPLAY LCA 200

Description

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.

TEXT DISPLAY LCA 200

Description

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