Functions
5.11 Operation in fieldbus systems
Frequency inverter
192 Operating Instructions, 08.10. 2008, t.b.d.
STEP 7 sample program for acyclic communication
Simple S7 program for parameterizing the frequency inverter
The S7 program, which supplies data for acyclic communication between the frequency
inverter and the central controller, can be used for PROFIBUS and PROFINET.
Figure 5-37 STEP 7 program example for acyclic communication - OB1
Flags 9.0 to 9.3 specify whether parameters are read or written:
● M9.0: request to read parameters
● M9.1: request to write parameters
● M9.2: displays the read process
● M9.3: displays the write process
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