garciaortiz
Member
I have a problem and can't find an answer anywhere. I have a ladder logic aoi to control motors. In the routine there is an alarm for failure to start. If the motor is told to start but the auxiliary does not come in then after 3 seconds alarm.
I have three motors. Each one is using a UDT structure of data to pass the parameters to the AOI(start command, contactor status, etc.). When I use a local timer tag, if only one or two motors fail I don't get an alarm.
If I create an individual alarm and pass it with the structure the logic works fine.
Does anyone have an idea how this could happen? I thought each AOI was contained to itself.
Here are some clips from my logic.
I have three motors. Each one is using a UDT structure of data to pass the parameters to the AOI(start command, contactor status, etc.). When I use a local timer tag, if only one or two motors fail I don't get an alarm.
If I create an individual alarm and pass it with the structure the logic works fine.
Does anyone have an idea how this could happen? I thought each AOI was contained to itself.
Here are some clips from my logic.