CAN-8x23 user’s manual (Revision 3.20, Ma r/08/2012) ------
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Acyclic synchronous
For the TxPDO object, after receiving a n object from the SYNC producer,
the CAN-8x23 will respond with a pre-defined TxPDO message to the PDO
consumers. For the RxPDO object, the CAN-8x23 needs to receive the SYNC
objects to actuate the RxPDO object, which is received before the SYNC
object. The following figures indicate how the acyclic synchronous
transmission type works on the RxPDO and the TxPDO.
Cyclic synchronous