Appendix
General information about the system bus (CAN)
Process data transfer
14
449
EDBCSXA064 EN 3.2
14.7.3.4 Cyclic process data objects
X4
X14
X4
X14
X4
X14
X1 X1
X4
X14
X1 X1
PLC
Rx-PDO1
Tx-PDO1
ECSxS/P/M/A...
ECSXA218
Fig. 14−9 Example: Cyclic process data transfer from/to master (PLC)
For the quick exchange of process data from or to the master respectively one process data
object for input signals (Rx−PDO1) and one process data object for output signals
(Tx−PDO18 ), each with 8 bytes of user data, is provided.
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