Technical data

In Figs. 9.16 to 9.20 you can see that the I/O input and output bytes of the
three stations in the manufacturing unit are practically directly connected or
"wired" to each other by the GP.
Station 1
Station 2
Station 3
PY 130
PY 3
PY 10
PY 110
Auto Man Start Stop PROGRAM SELECTION
IB
IB
QB
PY 11
IB
IB
PY 111
QB
Fig. 9.16: Station 1 Sends Control Commands and Program Selection to Stations 2 and 3
Station 1
Station 2
Auto Man Start Stop
PO51 PO52 Fault
1
Fault
2
PY 2
PY 3
PY 148
PY 149
Position and fault messages
IB
QB
IB
QB
Fig. 9.17: Station 2 Sends Acknowledgment, Position and Fault Messages to Station 1
B8976060/02 Communication with Global I/Os
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