Issue:
Using EcoStructure Machine Expert Basic to program M221 PLCs in ladder logic, are there Always On and Always Off Memory Bits from the System bits (%S) that could be used?
Product Line:
EcoStructure Machine Expert Basic (all versions)
TM221 controllers
Resolution:
From the Machine Expert Basic help, there are no system bits (%S) listed for Always ON and Always OFF.
But in ladder logic it is easy way to program an Always ON and an Always OFF bits using normal memory bits (%M). See screenshot below.
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Publié pour: Schneider Electric Belgium
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