Quick question...I am currently designing a system with a Micrologix 1400 with an additional IF4 (4 analog input) and a OF4 (4 analog output) card. The IF4 has 15 bit resolution, and the OF4 has 12 bit resolution. My question is this. Is it worth it to spend the extra money to do get this set up, or would it be better to save some money and just get the Micrologix 1400 that has analog ins/outs built in (both in and out have 12 bit res)??