Rockwell Automation 20-COMM-I Interbus Adapter - Manual (Page 83)

Using Explicit Messaging (PCP Communications) 6-21
Figure 6.4 LAD6 - PCP Write Subroutine (Continued)
0009
M1:1.0
15
Status
Message
Present
L
B3:47
12
PCP Write
Reply Msg
1-Shot
When the Command / Status Message handshake is complete, reset the 1-shot bits and exit the PCP Write routine by turning the
"Execute PCP Write" bit off (B3:47/10)
0010
M0:1.0
15
Command
Message
Acknowledge
M1:1.0
15
Status
Message
Present
U
B3:47
10
Execute
PCP Write
Subroutine
U
B3:47
11
PCP Write
Routine
1-shot
U
B3:47
12
PCP Write
Reply Msg
1-Shot
U
M0:1.0
15
Command
Message
Acknowledge
0011 END
20COMM-UM007A-EN-P.book Page 21 Tuesday, January 22, 2002 10:52 AM