4 SEND/RECEIVE Interface in the User Program
A-94
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
At various points (event and program-controlled) the user program sends data
on a connection using the AG_SEND call.
At various points in the CPU cycle, the user program accepts the data received
on the connection using an AG_RECV call.
Note
The blocks can also be called more than once in a cycle for the same
communication connection.
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