Peter Nachtwey
Member
I have a Mitsubishi Q03UDECPU. I am trying to learn how function blocks work on this PLC. I have written a FB that simply sets a bit when ever the input changes. This bit should then increment a counter. The first instance of the FB works but the second doesn't.
I am manually changing GblNewInt. I should see ChangeCount change, it does, and ChangeCount2 change, it doesn't, each time I change GlbNewInt.
I can see that ChangedBit2 is on at rung 39 but ChangeCount should have incremented once.
In the second instances of the FB I can see the Changed bit set but the MOV doesn't seem to be active.
I am manually changing GblNewInt. I should see ChangeCount change, it does, and ChangeCount2 change, it doesn't, each time I change GlbNewInt.
I can see that ChangedBit2 is on at rung 39 but ChangeCount should have incremented once.
In the second instances of the FB I can see the Changed bit set but the MOV doesn't seem to be active.
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