Program instructions   
7.6 Counters 
  S7-200 SMART 
282  System Manual, V2.3, 07/2017, A5E03822230-AF 
Disabling a high-speed counter (any mode) 
The following steps describe how to disable the HSC0 high-speed counter (any mode): 
1.  Load SMB37 to disable the counter: 
SMB37 = 16#00 
–  Disables the counter 
2.  Execute the HSC instruction to disable the counter.