Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 212)

ASCII Module
PLC-2 Family Processors
Appendix A
AĆ44
WB004:0000
15
WB004:0000
05
BTR
BLOCK XFER READ
RACK :
GROUP :
MODULE:
DATA :
LENGTH =
CNTL:
001
1
1 = HIGH
FO003:0000
0
FB004:0000
CNTL
12
EN
CNTL
15
DN
CNTL
13
ER
WB004:0000
17
BTW
BLOCK XFER WRITE
RACK :
GROUP :
MODULE:
DATA :
LENGTH =
CNTL:
001
1
1 = HIGH
FO002:0000
0
FO004:0000
CNTL
02
EN
CNTL
05
DN
CNTL
03
ER
Read status word 1 & 2
and data
Write command words 1 & 2
initialization data and message
data.
RUNG NUMBER RM12
WD005:0000
00
RUNG NUMBER RM13
RUNG NUMBER RM14
EOP
Initialization: Turns off rung 1 except for
1st scan at power-up