Siemens SIMATIC ET 200eco PN Operating Instructions Manual page 194

I/O device analog input/analog output
10.1 I/O device analog input
STL
U M 20.1
SPB END
CLR
= M 20.0
END :NOP 0
This is only an example. The logic and memory assignment have to be adapted to the
structure of the used PLC program.
Addition information on SFB 53 "WRREC" is available in the System Software for S7-
300/400 System and Standard Functions manual.
194
Explanation
Checking if WRREC is "Busy"
Reset request for Dynamic Ref. Temp.
Operating Instructions, 08/2016, A5E01250250-AJ
ET 200eco PN