Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 242)

ASCII Module
For PLCĆ3 Processor
Appendix B
B-20
A write (only) program for transferring data from your processor’s
data table to your ASCII device is presented with rung descriptions in
Figure A.19.
Figure B.10
Example Write (Only) Program
00
WO005:0000
00
MOV
MOVE FROM A TO R
A : WO001:0000
0000000000000000
R : WO002:0000
0000000000000000
RUNG NUMBER RM0
Load zeros into command word 1 with
selector switch or on first scan
RUNG NUMBER RM1
WO003:0000
07
WO002:0000
07
Power-up/reset power-up initialization bit
WO003:0000
07
S0003
01
WO005:0000
01
L
RUNG NUMBER RM2
WO005:0000
RUNG NUMBER RM3
TON
TIMER ON
1.0 SECOND
TP =
TA =
T0001
2
0
T0001
17
TE
T0001
15
TD
01
Energize at power-up to load initialization words. Also energized on
on 1st scan after processor selection of run monitor mode
Energize timer on power-up
WO005:0000
01
T0001
15
RUNG NUMBER RM4
U
De-energize timer after transferring initialization words
00
WO005:0000
WO002:0000
17
RUNG NUMBER RM5
Command word 1 initialization bit. Module expects
up to 4 initialization words
01
I
0001
I
0001
Example Write (Only) Program