Siemens SIMATIC ET 200eco PN - Page 194

I/O device analog input/analog output
10.1 I/O device analog input
ET 200eco PN
194 Operating Instructions, 08/2016, A5E01250250-AJ
STL
Explanation
U M 20.1
Checking if WRREC is "Busy"
SPB END
CLR
= M 20.0
Reset request for Dynamic Ref. Temp.
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.