PLC Data Comparison Instructions
As we have seen with counter and timers, some PLC instructions generate digital values other than simple Boolean (on/off) signals.
siemens plc timer instructions
PLC Math instructions
The IEC 61131-3 standard specifies several dedicated ladder instructions for performing arithmetic calculations. Some of them are shown here: PLC
PLC Counter Instructions
A counter is a PLC instruction that either increments (counts up) or decrements (counts down) an integer number value when
Siemens PLC Mathematics Instructions
This is Program for Siemens PLC Mathematics Instructions. Siemens PLC Math Instructions Implement ADD, SUB, MUL, DIV, MOD and NEG