Last week, we looked at Siemens Counters in STEP7 Professional and why we don’t use them, so today we’re going to be taking a look at System Function Blocks, more specifically the IEC Timers and Counters that Siemens have created that we are all used to using in TIA Portal!



01:30 – OB1 and System Function Blocks
03:15 – System Function Block Counters (SFB CTU IEC_TC)
07:10 – Function Block in OB1
10:55 – Data Block(1) Monitoring
13:35 – Adding a Second Data Block
16:00 – System Function Block Timers (SFB TON IEC_TC)


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