LAUER LCA 042 User Manual

TEXT DISPLAY

LCA 042

The attractively designed LCA 042, incorporates many interesting features. One of the successful LCA series of text displays.

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 text displays. Therefore they are part of the standard equipment of every machine.

With the LCA 042 text display you can invoke up to 200 messages. It can be driven by any programmable con-troller or by individual contacts or proximity switches.

All text displays are unobtrusive and have an unmistakable appearance. LCA text displays are functional, well-designed units that can be integrated harmoniously into your machines.

MANUAL FOR THE LCA 042

042 PRINT 01/11.89

TEXT DISPLAY

LCA 042

CPU INPUT INPUT OUTPUT OUTPUT

SIMATIC S5-115U

+ 24 V

UNIVERSAL-ADAPTER LCA 024

SPS/PLC

▲

▼ ▼

▼

ENTER

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 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 either into the RAM by means of a keyboard or into the EPROM using the LCA 014 (or a PC)

■ display texts directly - the text of a message 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-played in the last two columns of a text line

■ 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 texts in one line - all ASCII and BCD characters

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

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 protected by copyright. All rights are reserved. Copying, reproduction, translation or transfer, in whole or in part, 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

1 TEXT DISPLAY LCA 044 2 TEXT DISPLAY LCA 045 3 TEXT DISPLAY LCA 143 4 TEXT DISPLAY LCA 145 5 TEXT DISPLAY LCA 245 6 TEXT DISPLAY LCA 265 7 DIAGNOSTIC SYSTEM LCA 285 8 INDUSTRIAL PRINTER LCA 710

FURTHER PRODUCTS FROM

OUR RANGE

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

-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

We recommend out text display LCA 042 for use with programmable controllers made by the following manufacturers:

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

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 PROGRAMMING and OPERATION. During programming operation 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

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 the use of this type of installation with the text display LCA 042 we supply the industrial adapter LCA 020.

The electrical connections between the programmable 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

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

The simplest and most economical way of connecting the text display to the programmable controller is by means of 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.

TEXT DISPLAY LCA 042

2

-CONNECTION OF THE LCA 010

ENTER

SHIFT

Pocket keyboard

LCA 010

1.2 CONNECTION OF THE LCA 010

The simplest way of entering and correcting message texts is by means of the pocket keyboard LCA 010. The LCA 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 alphanumeric 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 3.2 of this manual.

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 UB of 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 Standard VDE 100. The driver transformer must conform to German Electrical Standard VDE 0551. According to this standard one side of the operating voltage may be 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 guarantee 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 U

Bmax

:33V=

U

Bmin

:19V=

Current consumption : ≤ 350 mA (+24V=)

TEXT DISPLAY LCA 042

19

SOURCE OF INTERFERING RADIATION

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.

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 immunity1 to 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.

TEXT DISPLAY LCA 042

4

-ENTRY OF MESSAGE TEXTS WITH KEYBOARD LCA 010

ENTER

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

understandable dialog process. Before entering message texts you should first

delete all texts (program 1) and then initialize the LCA 042 (program 6). This procedure is not necessary if you only want to correct or expand message texts.

The individual programs are described in detail in the programming instructions, which are supplied with every text display.

3.1 ENTRY OF MESSAGE TEXTS WITH KEYBOARD LCA 010

TEXT DISPLAY LCA 042

5

EPROM

2764/2764 A

LCA 014

EPROM-PROGRAMMER

EPROM

SCHREIBEN/WRITE

EPROM

LESEN/READ

POWER ON

ENTER

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. Program initialization and message texts using the

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

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 Y iy * : 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 message texts and variables that can be depicted on text display LCA 042. The complete character set is available only via the EPROM. When using pocket keyboard LCA 010, 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.

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

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.

In order to invoke a message or a message text, the coded message number must simply be placed on the message inputs. Every time the message number is changed, a new message is displayed or stored, depending on the message variants.

The only condition for correct invocation of a message is that the message number must be present on the message inputs for a minimum period.

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. 100804020108421 number

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.

TEXT DISPLAY LCA 042

8

1) Due to standardization of the input signals the designations have been altered. The old designations are given in brackets. You may 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

You determine the message variant or operating mode of 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

All messages (max. 19) are registered in the message memory 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 variables. The number of variables and their position on the message line can be determined using place holders.

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.

TEXT DISPLAY LCA 042

10

CLOCK (DATA-CLOCK) can be triggered by a key or by the programmable controller.

MESSAGE

0 1 2 3 63 64 65

Main line 000 003 006 009 189 192 195 1st add. line 001 004 007 010 to 190 193 196

2nd add. line 002 005 008 011 191 194 197

-THE MULTI-LINE MESSAGE

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

CLOCK

BCD 080/BIN 128

BCD 100/BIN 256

BCD 200

1st CLOCK = additional line 1 2nd CLOCK = additional line 2 3rd CLOCK = main line

1) log 0 = OV, open input log 1 = +24 V

= CLOCK

2) Example

4.3.2 MULTI-LINE MESSAGE

Multi-line messages consist of a main message and two addi-tional messages. For certain messages a multi-line display is advantageous, for example:

- to display message texts in three different languages

- to give information on the fault in the main message and information on fault elimination in the additional messa-ge

- to indicate an operation in the main message and adjust-ment values in the additional message.

The main message is always invoked using message number (003)2). The two message numbers (004 + 005)2) which follow this main message are reserved for the two additional mes-sages. The additional messages are invoked simply with CLOCK.

In this message variant each message occupies three lines. The LCA 042 can thus display a maximum of 65 x 3 messages. In principle the main line can be positioned using any messa-ge number pattern. It is however advantageous to use the allocation: 000, 003, 006 ...

If a new message is invoked while the LCA 042 is displaying an additional message, the display of the additional message is immediately stopped and the new main message dis-played.

DIRECT/SEQUENTIAL ( 7 ) = 0

1)

TEXT/VARIABLE ( 20 ) = 0 CLOCK ( 8 ) =

TEXT DISPLAY LCA 042

11

-THE FIRST MESSAGE

MESSAGE- or TEXTNUMBER FUNCTION POWER 18 5 17 4 16 3 15 2 14 1 7 20 8 10 25

BCD 001/BIN 001

DIRECT/SEQUENTIAL

BCD 002/BIN 002

BCD 004/BIN 004

BCD 008/BIN 008

BCD 010/BIN 016

0V, GND

BCD 020/BIN 032

BCD 040/BIN 064

BCD 080/BIN 128

BCD 100/BIN 256

BCD 200

+24 V=

CLOCK

PAGE FORWARDS

Programmable Controller

Prog. Cont. outputs

0 DIRECT MESSAGE 1 FIRST MESSAGE

1) log 0 = OV, open input

log 1 = +24 V

= CLOCK

4.3.3 FIRST MESSAGE

With this message variant the LCA 042 can register a maximum of 19 messages in the message memory.

All messages are stored one after the other and the first message is continuously displayed. The other messages can be invoked and displayed as often as desired with function input CLOCK.

When function input DIRECT/SEQUENTIAL becomes “logical 1”, the registration of the messages begins. With a “logic 0” on the input the registration ends and the internal messa-ge memory is erased. The LCA 042 then displays the text of message number 000.

The message memory always registers the last 19 messages. Message 000 is not stored. CLOCK must not last longer than 2s, otherwise cyclic display will take place.

DIRECT/SEQUENTIAL ( 7 ) = 1

1)

TEXT/VARIABLE ( 20 ) = 0 CLOCK ( 8 ) =

The function input DIRECT/ SEQUENTIAL can be driven by the programmable controller or hard-wired. CLOCK (DATACLOCK) can be triggered by a key or by the programmable controller.

TEXT DISPLAY LCA 042

12

4.3.4 CYCLIC DISPLAY

With this message variant the LCA 042 can register a maximum of 19 messages.

All messages are stored one after the other and are displayed cyclically.

When function input DIRECT/SEQUENTIAL becomes “logical 1”, the registration of the messages begins. With a “logic 0” on the input the registration ends and the internal message memory is erased. The LCA 042 then displays only the text of message number 000 (information text).

The message memory always registers the last 19 messages. Each message is displayed for approx. 2.5s.

The function input DIRECT/ SEQUENTIAL and CLOCK (DATA-CLOCK) can be driven by the programmable controller or hard-wired.

-THE CYCLIC DISPLAY

1) log 0 = OV, open input

log 1 = +24 V

= CLOCK

MESSAGE- or TEXTNUMBER FUNCTION POWER 18 5 17 4 16 3 15 2 14 1 7 20 8 10 25

BCD 001/BIN 001

DIRECT/SEQUENTIAL

BCD 002/BIN 002

BCD 004/BIN 004

BCD 008/BIN 008

BCD 010/BIN 016

0V, GND

BCD 020/BIN 032

BCD 040/BIN 064

BCD 080/BIN 128

BCD 100/BIN 256

BCD 200

+24 V=

CLOCK

CYCLIC DISPLAY

Programmable Controller

Prog. Cont. outputs

0 DIRECT MESSAGE 1 FIRST MESSAGE

1

DIRECT/SEQUENTIAL ( 7 ) = 1

1)

TEXT/VARIABLE ( 20 ) = 0 CLOCK ( 8 ) = 1

TEXT DISPLAY LCA 042

13

-EXTERNAL VARIABLES

VAR 001 ... VAR 008 = BCD variables VAR 001 ... VAR 064 = ASCII variables

BCD 001/BIN 001 VAR 001

BCD 002/BIN 002 VAR 002

BCD 004/BIN 004 VAR 004

BCD 008/BIN 008 VAR 008

BCD 010/BIN 016 VAR 016

BCD 020/BIN 032 VAR 032

BCD 040/BIN 064 VAR 064

TEXT /VARIABLE

BCD 080/BIN 128

BCD 100/BIN 256

BCD 200

0V, GND

0V Signal

+24 V=

CLOCK

0 INVOKE MESSAGES 1 READ IN VARIABLE

VARIABLE IS TAKEN OVER

Programmable Controller

Prog. Cont. outputs

MESSAGE- or TEXTNUMBER FUNCTION POWER 18 5 17 4 16 3 15 2 14 1 7 20 8 22 10 25

OPERATING

VOLTAGE

MESSAGE

Ø54

TEXT

VARIABLE

1st

VARIABLE

2nd

VARIABLE

CLOCK

TIME 1 2 3 4 5 6 7

+ 24V 0 V

log 1 log 0

ON OFF

log 1 log 0

TIME 1: The message 054 (for example) is invoked and displayed

without variables (Time 1-2 >= 74ms)

TIME 2: The function input TEXT/VARIABLE is switched to variable

(Time 2-3 >= 21ms)

TIME 3: The 1st variable is created, CLOCKed into the LCA042 in BCD/

ASCII-code via the message inputs and displayed. The variables are written into the predetermined variable positions from left to right (Time 3-4 >= 15ms)

TIME 4: After the CLOCK there is an “idle time” (Time 4-5 >= 15ms) TIME 5: The 2nd variable is created, CLOCKed into the LCA 042 in BCD/

ASCII-code via the message inputs and displayed. The variables are written into the predetermined variable positions from left to right (Time 5-6 >= 15ms)

TIME 6: After the CLOCK there is an “idle time” (Time 6-7 >= 15ms) TIME 7: The text is displayed with variables until time point 7

4.4 EXTERNAL VARIABLES

External variables are pressures, temperatures, counter values etc. They can be read into any message text line. The variables in an invoked message can be updated as often as desired:

By means of place holders * (asterisks) you can determine the number and position of the variables in a text line:

A maximum of 40 external variables can be written into each text line.

FOIL-TEMP = 85.4 °C (NOM-TEMP = 94.0 °C)

DIRECT/SEQUENTIAL ( 7 ) = 0 TEXT/VARIABLE ( 20 ) = 1

CLOCK ( 8 ) =

FOIL-TEMP = 96.0 °C (NOM-TEMP = 94.0 °C)

FOIL-TEMP = ** * °C (NOM-TEMP = 94.0 °C)

TEXT DISPLAY LCA 042

14

1) Contacts, proximity switches, programmable controller outputs, etc.

-TEXT DISPLAY WITHOUT PROGRAMMABLE CONTROLLER

Flat cabel LCA 030, LCA 031

UNIVERSAL ADAPTER LCA 024

1)

Programmable Controller connection

+24 V=

5.1 UNIVERSAL ADAPTER LCA 024/025

When text display LCA 042 can not be driven by a programmable controller, for example when used with conventional relay controllers, we recommend the use of the universal adapter LCA 024.

Up to 64 limit switches, proximity switches, relays and electronic outputs can be connected to the LCA 024. The text display and the universal adapter are organized in such a way that a “logical 1” on terminal 1 of the LCA 024 invokes message 01 in the text display. The same applies for inputs 3...64. The terminal number corresponds to

the message number. If logical 1 is present on several inputs simultaneously, their messages can be

displayed cyclically or invoked one after the other by means of a key.

If 64 message inputs are not enough, an extension up to 127 inputs is possible using universal adapter expander LCA 025.

For more detailed information see the description of the universal adapter.