In the PLC configuration, is the memory address of the I/O in question %QD or %ID??
- Q is for output, I is for input.
- To change, right click the I/O, select replace element, and choose the desired element.
In the channel parameters for each I/O, is the proper u16_Type selected? Is the corresponding u16_Circuit selected? (X_IN.... for inputs, X_OUT... for outputs)