Analog Input Cards for Programmable Logic Controller.


Thread Starter

Mr. Samar

In one of our installation, we require to configure 9 Analog input (AI) signals in an AI card of a PLC. Now my question is which AI card should I select. Either I should go for a 16 Channel AI card or an 32 channel AI card.

Leaving the cost factor & the availability of more spare channels in 32 channel AI card, please share the Pros & Cons of selecting 32 channel AI card in this case.

I would be interested to know more on the probability of failure.
Is the resolution the same on the 16 and 32? If so the 32 may react a little slower depending on the speed of the PC. If high resolution in not needed and do not need super fast input response (if on a slow to moderate computer) you could use the 32.