ID 442710.00 22WE KEEP THINGS MOVING
Commissioning - SD6 and SIMATIC S7 with PROFINET
5
Operation manual PROFINET
5.2.8 Program acyclic communication service
To transfer acyclic parameter data, PROFINET provides the "Write data record"
and "Read data record" functions. These services are controlled via the
SIMATIC function blocks WRREC and RDREC.
1. Project tree > Devices tab: open the folder of the relevant IO controller
(e.g. PLC_1 [CPU 1513-1 PN]) > Program blocks.
2. Select the block in which you want to project the acyclic communication.
3. Instructions > Extended instructions > section Distributed I/O:
program the data exchange via the WRREC and RDREC function blocks.
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