
© 1989 by SYSTEME LAUER GMBH • D 72669 Unterensingen • Kelterstr. 59 • TEL 07022/ 96600 • FAX 07022/9660103
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 “lo-
gical 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 con-
troller 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