Process interfacing via an automation system (PLC, PC)
9.4 Control with FB 79
SIMATIC MV500
Operating Instructions, 06/2018, C79000-G8976-C494-01
133
Table 9- 39 Program selection procedure
1 DISA = 1
TRN = 0
TRG = 0
Program selection is prepared.
DISA must have the value "1". No edge change is necessary.
2 SEL0 = 1
SEL1 = 1
SEL2 = 0
Select program, for example, program 11.
3 TRD = 0
Program selection is started.
5 TRD = 1
Program change is completed after approximately 150 ms to 15 s.
If the selected program is not saved, "TRD" and "RDY" will retain the value "0".
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