LAUER LCA 042 User manual

TEXT DISPLAY
LCA 042
© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
The attractively designed LCA 042, incor-
porates many interesting features. One
of the successful LCA series of text dis-
plays.
Text displays are not exotic addons, but tools, with
which you can considerably improve the service
quality of machines and systems. Text displays
■avoid malfunctions,
■indicate how faults can be eliminated,
■provide operator guidance,
■give important set-up information,
■show what the machine is currently doing,
■support maintenance and servicing,
■issue instructions for carrying out adjustments,
■combine variable values with fixed texts
LCA text displays save time and money. Neither
designers nor production personnel can do without
textdisplays.Thereforetheyarepartofthestandard
equipment of every machine.
With the LCA 042 text display you can invoke up to
200messages.Itcanbedrivenbyanyprogrammable
con-troller or by individual contacts or proximity
switches.
Alltextdisplaysareunobtrusiveandhaveanunmi-
stakableappearance.LCAtextdisplaysarefunctional,
well-designedunits thatcanbeintegrated harmoni-
ously into your machines.
MANUAL FOR THE LCA 042
042 PRINT 01/11.89

TEXT DISPLAY
LCA 042
© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
CPU INPUT INPUT OUTPUT OUTPUT
SIMATIC
S5-115U
+ 24 V
UNIVERSAL-ADAPTER LCA 024
SPS/PLC
SPS/PLC
▲
▼
▼ ▼
▼
▼
▼
ENTER
SHIFT SHIFT
KEYBOARD
EPROM PROGRAMMER
-TEXT DISPLAY LCA 042 WITH ACCESSORIES
▲
▲
▲
EPROM
2764/2764 A
LCA 014
EPROM-PROGRAMMER
EPROM
SCHREIBEN/WRITE
EPROM
LESEN/READ
POWER ON
▲
▲
TESTKONSOLE LCA 015
LETZT ERST RES DIREKT
MELD MELD LÖSCH
BIN TAKT VAR MELD TAKT QUIT
256 GEHT LÖSCH
BIN BIN BIN BIN BIN BIN BIN BIN
128 64 32 16 8 4 2 1
SPS
LCA 020
LCA 015
LCA 010
LCA 014
LCA 293
PC
▼▼▼▼▼
▲
▼
EPROM
2764/2764 A
EPROM
2764/2764 A
LCA 048
LCA 030
LCA 031 LCA 030 LCA 031
LCA 038
LCA 024
LCA 010 POCKET KEYBOARD
LCA 014 EPROM-PROGRAMMER
LCA 048 EPROM 2764
LCA 015 TEST CONSOLE
LCA 020 INDUSTRIAL ADAPTER
LCA 024 UNIVERSAL ADAPTER
LCA 025 ADAPTER EXPANDER
LCA 293 P-SOFTWARE FOR LCA 042
LCA 030 FLAT CABLE 200 cm
LCA 031 FLAT CABLE 30 cm
LCA 038.2 ROUND CABLE 200 cm
LCA 038.4 ROUND CABLE 400 cm
LCA 038.6 ROUND CABLE 600 cm
LCA 038.8 ROUND CABLE 800 cm
Text display LCA 042 can ...
■display 200 messages with 40 characters
each - the message texts can be transfered
eitherintotheRAMbymeansofakeyboardor
into the EPROM using the LCA 014 (or a PC)
■displaytextsdirectly-thetextofamessage
is displayed for as long as the coded message
number is present on the inputs of the LCA
042
■store 19 messages and display them cyc-
lically - the number of messages invoked is
dis-playedinthelasttwocolumnsofatextline
■display the first message and store the
others - the other messages are requested
and displayed via the clock input
■display messages on several lines - the
first line contains the main information, the
other two lines additional information
■combine external variables and fixed
textsinoneline-allASCIIandBCDcharacters
are permissible as variables
■be driven by any programmable controller
using BCD/BIN-code or by universal
adapter LCA 024 (using contacts, proximity
switches etc.)
ACCESSORIES
PROG. CONT. CONNECTION
INTERFACING
PROGRAMMING
ACCESSORIES

TEXT DISPLAY
LCA 042
© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
1 Connections to the LCA 042
1.0 Connections to the LCA 042
1.1 Connection of the Prog. Cont.
1.1.1 Prog. Cont. connection via industrial adapter LCA
020
1.1.2 Prog. Cont. connection via round cable LCA 038
1.2 Connection of the pocket keyboard LCA 010
1.3 Connection of the EPROM programmer LCA 014
2 Specifications of the LCA 042
2.1 Power supply
2.2 Installation instructions
2.3 Specifications
3 Programming the LCA 042
3.1 Entry of message texts with keyboard LCA 010
3.2 Copying message texts into EPROM
3.3 ASCII character chard
4 Operation of the LCA 042
4.1 Invocation of messages by the Prog. Cont.
4.2 The message number
4.3 The message variants
4.3.1 Direct message
4.3.2 Multi-line message
4.3.3 First message
4.3.4 Cyclic display
4.4 External variables
5 Text display without Prog. Cont.
5.1 Universal Adapter LCA 024/025
Operating instructions, manuals and software are pro-
tected by copyright. All rights are reserved. Copying,
reproduction,translationor transfer, inwholeor inpart,
is forbidden. The only exception a back-up copy of the
software for the customer's own use.
TABLE OF CONTENTS

TEXT DISPLAY
LCA 042
© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
1TEXT DISPLAY LCA 044
2TEXT DISPLAY LCA 045
3TEXT DISPLAY LCA 143
4TEXT DISPLAY LCA 145
5TEXT DISPLAY LCA 245
6TEXT DISPLAY LCA 265
7DIAGNOSTIC SYSTEM LCA 285
8INDUSTRIAL PRINTER LCA 710
FURTHER PRODUCTS FROM
OUR RANGE

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
1
Prog. Cont. interface Pocket keyboard
LCA 010
EPROM programmer
LCA 014
CPU INPUT INPUT OUTPUT OUTPUT
SIMATIC
S5-115U
EBERLE
PLS 508
EPROM
2764/2764 A
LCA 014
EPROM-PROGRAMMER
EPROM
SCHREIBEN/WRITE
EPROM
LESEN/READ
POWER ON
ENTER
SHIFT SHIFT
-CONNECTIONS TO THE LCA 042
1.0 CONNECTIONS TO THE LCA 042
There are three plug-type connectors on the rear of the
LCA 042:
- Connector for programmable controller
25-pin DIN plug
- Connector for pocket keyboard LCA 010
20-pin plug
- Connector for EPROM programmer LCA 014
10-pin plug
WerecommendouttextdisplayLCA 042forusewithpro-
grammable controllers made by the following manufac-
turers:
AEG Kunke
April Mitsubishi
ABB Texas Instruments
B & R Selectron
Eberle Schiele
Festo Siemens
IFM Omron
Inter Control Philips
Klaschka
Klöckner-Moeller
and many others

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
15
-CONNECTION OF THE PROGRAMMABLE CONTROLLER
CPU INPUT INPUT OUTPUT OUTPUT
SIMATIC
S5-115U
EBERLE
PLS 508
1) For increased protection against
interference you should wire the
connection “0V Signal”.
MESSAGE or TEXTNUMBER FUNCTION POWER
5 17 4 16 3 15 2 14 1 8 20 7 22 10 11 24 25
BCD 001/BIN 001
BCD 002/BIN 002
BCD 004/BIN 004
BCD 008/BIN 008
BCD 010/BIN 016
0V, GND
0V Signal 1)
+24 V=
BCD 020/BIN 032
BCD 040/BIN 064
CLOCK
TEXT/VARIABLE
DIRECT/SEQUENTIAL
BCD 080/BIN 128
BCD 100
1.1 CONNECTION OF THE PROG. CONT.
The parallel interface is the most important connection
be-tween the machine (controller) and the text display
LCA 042. All significant functions of the LCA 042 are
performed via this interface. These functions are:
- invoking the message texts (max. 200)
- invoking the message variants (functions)
- entering external variables
All inputs are high-active (Ri = 2.6kΩ)
BIN 0... 199
BCD 0... 199 = coded message number
CLOCK = 1. invoke additional messages
2.display external variables on text display
3. invoke further messages
(at first message)
TEXT/VARIABLE = switch between message text and
external variable
DIRECT/SEQUENTIAL = switch between direct message and first
message (sequential display)
The connection to the programmable controller is made
via industrial adapter LCA 020 or round cable LCA 038.
Text display LCA 042 distinguishes between PROGRAM-
MINGand OPERATION.During programmingoperation of
the LCA 042 is not possible.
Before the LCA 042 is put into operation the following
preparations must be made:
1. initialize
2. store message texts
3. determine positions of variables by means of place
holders

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
16
-PROG. CONT. CONNECTION VIA INDUSTRIAL ADAPTER
1.1.1 INDUSTRIAL ADAPTER LCA 020
When using control cabinet techniques, connections are
normally made by means of screw terminals. To enable
theuseofthistypeofinstallationwiththetextdisplayLCA
042 we supply the industrial adapter LCA 020.
Theelectricalconnectionsbetweentheprogrammable
controller and the LCA 020 are made using the well-tried
wiring method via terminals and the connections
between the LCA 020 and the text display LCA 042 are by
means of ready-made flat cables (LCA 030 or LCA 031).
Flat cable LCA 030, LCA 031
INDUSTRIAL ADAPTER LCA020
Programmable Controller
Programmable Controller outputs
Programmable Controller connection

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
17
-PROG. CONT. CONNECTION VIA ROUND CABLE
Programmable Controller
Programmable Controller outputs
Round cabel LCA 038.2 ... 038.8
Programmable Controller connection
1.1.2 ROUND CABLE LCA 038
Thesimplest andmost economical wayof connectingthe
textdisplaytotheprogrammablecontrollerisbymeansof
ready-made round cables.
We supply round cable LCA 038 in 4 standard lengths
(from 200 to 800 cm) and a suitable plug for the text
display.
Further details can be found in the description of the
round cable.

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
2
-CONNECTION OF THE LCA 010
ENTER
SHIFT SHIFT
Pocket keyboard
LCA 010
1.2 CONNECTION OF THE LCA 010
The simplest way of entering and correcting message
textsisbymeansofthepocketkeyboardLCA010.TheLCA
010 is connected to the LCA 042 via a cable. As long as the
two units are connected together, no messages can be
invoked.
The pocket keyboard has 27 brown keys for alphanu-
meric characters and 8 red function keys. Following is a
description of the function keys:
Backwards in program
Forwards in program or invoke program
Cursor forwards; together with SHIFT key, backwards
Program selection
Shift key
Flash/delete
See also Section 3.1 of this manual.
ENTER
SHIFT

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
3
EPROM
2764/2764 A
LCA 014
EPROM-PROGRAMMER
EPROM
SCHREIBEN/WRITE
EPROM
LESEN/READ
POWER ON
-CONNECTION OF THE LCA 014
EPROM programmer
LCA 014
1.3 CONNECTION OF THE LCA 014
Using EPROM programmer LCA 014 the message text
stored in the RAM can be copied into a suitable EPROM.
TheLCA014doesnotrequireanadditionalvoltagesupply,
itis simply connectedto textdisplayLCA 042with a cable.
As long as the two units are connected together, no
message can be invoked.
TheEPROMisprogrammed,writtento, compared with
or read out in dialog with the LCA 042. The Pocket
keyboard LCA 010 is therefore required.
See also Section 3.2 of this manual.

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
18
DIAGNOSE-SYSTEM LCA 285.0
EXTERNE VARIABLE
2.1 VOLTAGE SUPPLY
To ensure correct operation of the text display LCA 042
observe the following instructions as regards the voltage
supply:
Use the LCA 042 only with operating voltages in the
range indicated.
Undervoltage transients of down to 9.5V for <= 1ms
are permissible.
An operating voltage UBof 35V= is permissible for <=
100ms (repetition frequency approx. 1Hz).
The LCA units may be driven only with “protective low
voltage” in accordance with German Electrical Stan-
dardVDE100.Thedrivertransformermustconformto
German Electrical Standard VDE 0551. According to
thisstandardonesideoftheoperatingvoltagemaybe
grounded: we recommend that this be done when
working with our units.
If one side of the operating voltage is not grounded,
you will require your own driver transformer to
operate the LCA 042.
The LCA 042 is grounded via the housing. Use a short
ground connection wire with a large cross-sectional
area (>= 2.5mm2)
If the operating voltage is also used to drive
inductances, protective circuitry must be
incorporated for them (recovery diode, etc.).
Operating voltages greater than those indicated
(+33V) can destroy the unit. In this case our guaran-
tee does not apply.
SPS LCA
~ 380 VAC
3/N/PE 380 VAC
= 24 VDC
+ 24VDC
0V DC
L 1
L 2
L 3
N
PE
Operating voltage UB: 24V= (<=5% residual ripple)
acc. to DIN 19240 UBmax :33V=
UBmin :19V=
Current consumption : ≤350 mA (+24V=)

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
19
SOURCE OF INTERFERING RADIATION
SOURCE OF INTERFERING RADIATION
SOURCE OF INTERFERING RADIATION
approx. 250 mm approx. 250 mm
approx. 250 mm
2.2 INSTALLATION INSTRUCTIONS
In order to reduce the effects of interfering signals
radiated by electric and magnetic fields, the minimum
distance from high-voltage or high-frequency carrying
cables and consumers should be >= 250mm. The input
wires to the LCA 042 should not be routed together with
high-voltage or high-frequency carrying cables.

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
20
max. thickness of material 5 mm
247 +0.5 mm
67 +0.5 mm
FRONT PANEL CUTOUT
254 mm
58 mm
74 mm
72 mm
LCA viewed from front
LCA viewed from above
LCA viewed from side
LCA viewed from rear
rubber seal
LCA 010 connection
Prog. Cont. connection
LCA 014 connection
message texts
EPROM
2.3 SPECIFICATIONS
A high degree of immunity1to interference and of
electrical protection (IP 65) ensure correct functioning,
even in rough industrial environments.
TECHNICAL DATA
Operating Voltage 19 ... 33 V
Power consumption 8 W
Signal voltage 19 ... 33 V=
Signal current (UB= 24V) 9 mA
Display flourescent
Characters per line 40
Character depiction 5 x 7 matrix
Character height 7 mm
Character set ASCII
Message invocation BCD / BINÄR
1 AKTIV / Ø AKTIV
Messages max 200
Messages text memory RAM/EPROM
External variables max. 40 characters
Operating temperature 0 ... 50 °C
Storage temperature -25 ... 70 °C
Connections plug-type
Electrical protection IP 65
Weight approx. 1000 g
Dimensions see dim. drawing
Installation is simple, all that is needed is a cutout in the
front panel. The rugged housing consists of two parts
which are separated for installation.
1) In order to ensure the maximum degree of immunity to
interference, the keyboard LCA 010 and the EPROM programmer
should not remain connected during operation of the text display.

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
4
-ENTRY OF MESSAGE TEXTS WITH KEYBOARD LCA 010
ENTER
SHIFT SHIFT
SYSTEME LAUER LCA 042 VERSION 00
‘
‘
Pocket keyboard
LCA 010
WHICH PROGRAM?
01: DELETE TEXT (ALL)
Invoke
program
Invoke
program
Invoke
program
Invoke
program
Invoke
program
Invoke
program
Invoke
program
02: FREE SETS?
03: ENTER AND EDIT TEXT
04: CHECK TEXT
06: INITIALIZE
07: TEST TEXT INVOCATION
09: EPROM PROGRAMMER
Using the pocket keyboard LCA 010 you can invoke the
various programs of the text display LCA 042 in an easily
understandabledialogpro-
cess. Before entering mes-
sage texts you should first
deletealltexts(program1)
and then initialize the LCA
042 (program 6). This pro-
cedure is not necessary if
you only want to correct
or expand message texts.
The individual programs
are described in detail in
the programming instruc-
tions, which are supplied
with every text display.
3.1 ENTRY OF MESSAGE TEXTS WITH KEY-
BOARD LCA 010

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
5
EPROM
2764/2764 A
LCA 014
EPROM-PROGRAMMER
EPROM
SCHREIBEN/WRITE
EPROM
LESEN/READ
POWER ON
ENTER
SHIFT SHIFT
-COPYING MESSAGE TEXTS INTO EPROM
3.2 COPYING MESSAGE TEXTS INTO EPROM
The texts entered using pocket keyboard LCA 010 are
stored in a battery-backed-up RAM. They can be deleted,
edited or expanded as often as you wish.
The contents of the RAM can be rapidly copied into an
EPROM using EPROM programmer LCA 014:
1. Programinitializationandmessagetextsusingthe
pocket keyboard.
2. Plug an empty EPROM 2764 (e.g. LCA 048) into the
LCA 014 socket.
3. Using the LCA010 invoke program 8 in text display
LCA 014.
4. Plug programmed EPROM into socket of LCA 042.
As long as there is an EPROM in the LCA 042, its contents
are valid and the LCA 010 is not accessed. If the EPROM is
removed, the contents of the RAM become valid. With
program 8 (READ EPROM) the contents of an EPROM can
also be copied into the RAM.
EPROM programmer
LCA 014
Pocket keyboard
LCA 010
08: EPROM PROGRAMMER
WRITE TO EPROM (Y/N)
COMPARE EPROM (Y/N)
READ EPROM (Y/N)
Y
Invoke program
Y
Invoke program
Y
Invoke program

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
21
20 30 40 50 60 70
SPACE 0@P°p
! 1 A Q aq
" 2 B R br
#3 C S cs
$4 D T dt
% 5 E U eu
& 6 F V fv
«7 G W gw
( 8 H X hx
) 9 I Yiy
* : J Z jz
+ ; K €kŠ
,<L…l š
- = M †mŸ
.>N▲n§
/ ? O ▼o■
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
▲
-
+
.
SPACE
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00
CR
ASCII BCD 3.3 ASCII CHARACTER CHART
The chart opposite shows the set of characters for mes-
sage texts and variables that can be depicted on text
display LCA 042. The complete character set is available
onlyviatheEPROM.WhenusingpocketkeyboardLCA010,
only the characters shown in outline in the chart are
available.
The variables can be ASCII-coded or BCD-coded. The
BCD chart for variables is thus shown separately.
Other country-specific character sets (German, Italian,
Spanish, Scandinavian) are available on request.

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
6
-INVOCATION OF MESSAGES BY THE PROG. CONT.
MESSAGE- or TEXT NUMBER FUNCTION POWER
18 5 17 4 16 3 15 2 14 1 8 20 7 22 10 11 24 25
OPERATING
VOLTAGE
MESSAGE
ØØØ
MESSAGE
ØØ1
TIME
1 2 3 4
>= 75 msec
+ 24V
0 V
ON
OFF
ON
OFF
TIME 1: Operating voltage is switched on. The LCA 042 is ready to operate after approx. 0.7s.
TIME 2: The message text of message ØØØ is displayed.
TIME 3: The message number of message ØØ1 is placed on the inputs of the LCA 042.
TIME 4: The message number must remain on the inputs for a minimum period of >= 75ms,
after this the message can change.
4.1 INVOCATION OF MESSAGES BY THE BY
PROG. CONT.
Inordertoinvokeamessageoramessagetext,thecoded
message number must simply be placed on the message
inputs.Everytimethemessagenumberischanged,anew
messageisdisplayedorstored,dependingonthemessa-
ge variants.
Theonly conditionfor correctinvocation ofa message
is that the message number must be present on the
message inputs for a minimum period.

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
7
BIN BIN BIN BIN BIN BIN BIN BIN Mess.
1286432168421 number
000 00000 000
000 00001 001
000 00010 002
000 00011 003
000 00100 004
000 00101 005
000 00110 006
000 00111 007
to
110 00110 198
110 00111 199
BCD BCD BCD BCD BCD BCD BCD BCD BCD Mess.
100804020108421number
000 000000000
000 000001001
000 000010002
000 000011003
000 000100004
000 000101005
000 000110006
000 000111007
to
110 011000198
110 011001199
-THE MESSAGE NUMBER
MESSAGE 000
MESSAGE 001
MESSAGE 002
MESSAGE 003
MESSAGE 199
MESSAGE 000
MESSAGE 001
MESSAGE 002
MESSAGE 003
MESSAGE 199
4.2 THE MESSAGE NUMBER
The message number determines which message text is
invoked. The message number is coded to allow the
maximum quantity of messages to be invoked with the
minimum of message inputs.
Text display LCA 042 offers the of two coding options:
- BIN-coded message numbers, up to 199 pages
- BCD-coded message numbers, up to 199 pages
200 messages are available with the LCA 042. They have
the message numbers 000 ... 199. You can join up to 3
message text lines into one message text. The first line
contains the main information, the other two lines the
additional information.

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
8
1) Duetostandardizationoftheinputsignalsthedesignationshave
beenaltered.Theolddesignationsaregiveninbrackets.Youmay
still find these designations on some LCA units.
-THE MESSAGE VARIANTS
Optionally the function inputs can be:
- hard-wired (open input corresponds to “log 0”)
- driven by keys and switches
- driven by programmable controller outputs
MESSAGE- or TEXTNUMBER FUNCTION POWER
18 5 17 4 16 3 15 2 14 1 8 20 7 22 10 11 24 25
CLOCK
TEXT/VARIABLE
DIRECT/SEQUENTIAL
4.3 THE MESSAGE VARIANTS
Youdeterminethemessagevariantoroperatingmodeof
text display LCA 042 using the 3 function inputs
- DIRECT/SEQUENTIAL
- TEXT/VARIABLE (TEXT/DATA)1)
- CLOCK (DATA-CLOCK)1)
DIRECT MESSAGE
A message is invoked and displayed for as long as the
coded message number is present on the LCA 042.
MULTI-LINE MESSAGE
If one line per message is not enough, then to each main
message two additional messages, two additional lines,
can be invoked with CLOCK.
FIRST MESSAGE
The LCA 042 displays the first message first, all other
messages (max. 19) are registered in the order of their
appearance in the message memory. The last two
columns of the messa-ge line give information on the
number of messages registe-red. These messages are
invoked one after the other with CLOCK.
CYCLIC MESSAGE
Allmessages (max. 19) are registeredin the message me-
mory and displayed in rotation. The last two columns of
the message line give information on the number of
messages registered. The CLOCK must be at log 1 (+24V).
EXTERNAL VARIABLES
The LCA 042 can combine fixed texts with external varia-
bles. The number of variables and their position on the
message line can be determined using place holders.

© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL [phone] • FAX [phone]
TEXT DISPLAY LCA 042
9
-THE DIRECT MESSAGE DIRECT/SEQUENTIAL ( 7 ) = 0 1)
TEXT/VARIABLE ( 20 ) = 0
CLOCK ( 8 ) = 0
Programmable Controller
Prog. Cont. outputs
MESSAGE- or TEXTNUMBER FUNCTION POWER
18 5 17 4 16 3 15 2 14 1 8 20 7 10 25
BCD 001/BIN 001
BCD 002/BIN 002
BCD 004/BIN 004
BCD 008/BIN 008
BCD 010/BIN 016
0V, GND
+24 V=
BCD 020/BIN 032
BCD 040/BIN 064
BCD 080/BIN 128
BCD 100
BCD 200
1) log 0 = OV, open input
log 1 = +24 V
= CLOCK
4.3.1 DIRECT MESSAGE
The simplest operating mode is the “direct message”. A
message is displayed for as long as the coded message
number is present on the LCA 042. The display changes
analogously to the changing of the message number.
Message number 000 indicates that no message has
been invoked.