If a functioning PLC-5 processor has its analog inputs formatted as BCD and I want to change it to a more conventional two's-complement binary format, what effects might I experience?

Can you offer any concerns or insight?

 

It depends on what is being done with the data in the PLC. Do a "Find All" on the raw addresses. If the data is converted using FRD instructions before it's used by the program, after you change it to binary, the FRDs won't be necessary. On the other hand, if the raw data is sent to a display unit that's set up for BCD, you don't want to mess that up.