I am using two 9203 modules to measure a number of 4-20mA inputs and the readings are quite noisy. At present I dont know whether it is line frequency noise or random noise but all channels are affected in a similar way. A quick search of this formum reveals that it is quite a common problem with this module and some people have replaced them with 9208's but unfortunately I am stuck with using these modules. Is there a way to filter the signals by creating a task in MAX? I am using OPC to connect with my application, I am not using Labview.
I have tried measuring the same inputs using a compact fieldpoint module and it works perfectly so clearly my sigals are 'measurable' under the right conditions.
Thanks