Chapter 5 Deployment CPU 21x-2BT02 with H1 / TCP/IP Manual VIPA CPU 21x
5-32 HB103E - Rev. 05/45
The OB1 cycle controls the sending and receiving of the data. The initiation
of transmission in station 1 is issued by a SEND handler block called in
FC1. The partner station answers with RECEIVE (FC2). By means of
SEND_ALL the data will be send and received by the partner with the
command RECEIVE_ALL.
Cycle operation block OB1:
FC1 - SEND FC2 - RECEIVE
OB1 - Cycle
FC 1 - SEND
FC 2 - RECEIVE
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