Technical data

The following specification of the transmitted and received data includes the
assignment of the I/O bytes (PY) to the global I/O bytes (GB).
Bus
stn.
no.
Input/output bytes used for data
transmission
Assignment: input and
output words to
global I/Os
1
QB
QB
PY 2 -Send the control commands to
stations 2 and 3
PY 3 -Send the program selection
(number) to stations 2 and 3
PY 2 -> GPB 10
PY 3 -> GPB 11
output
GP
IB
IB
PY 2 -Receive the ack. from
station 2
PY 3 -Receive the position and fault
message from station 2
PY 2 <- GPB 100
PY 3 <- GPB 101
input GP
IB
IB
PY 4 -Receive the ack. from
station 3
PY 5 -Receive the position and fault
messages from station 3
PY 4 <- GPB 102
PY 5 <- GPB 103
input GP
2
IB
IB
IB
PY 10 -Receive the control commands
from station 1
PY 11 -Receive the program selection
from station 1
PY 12 -Receive the fault messages from
station 3
PY 10 <- GPB 10
PY 11 <- GPB 11
PY 12 <- GPB 122
input GP
QB
QB
QB
PY 20 -Send the ack. to stn. 1
PY 21 -Send the position and fault
messages to station 1
PY 22 -Send the fault messages to
station 3
PY 20 -> GPB 100
PY 21 -> GPB 101
PY 22 -> GPB 22
output
GP
3
IB
IB
IB
PY 110 -Receive the control commands
fromstation 1
PY 111 -Receive the program selectionl
from station 1
PY 112 -Receive the fault messages from
Station 2
PY 110 <- GPB 10
PY 111 <- GPB 11
PY 112 <- GPB 22
input GP
QB
QB
QB
PY 120 -Send the ack. to
station 1
PY 121 -Send the position and fault
messages to station 1
PY 122 -Send the fault messages to
station 2
PY 120 -> GPB 102
PY 121 -> GPB 103
PY 122 -> GPB 122
output
GP
Table 9.3: Specification of the Transmitted and Received Data and the Assignment to GP
Communication with Global I/Os B8976060/01
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