merlin00724
Member
I am having some issues with a 1794-IE8 flex module on a controllogix plc. this is measuring the weight of a tank on load cells. the scaling seems to be right with the module set for 4-20mA and the raw min/max is 0-30840, but with a measured 3.8mA from the transmitter I am getting a raw value of 40. which is showing the tank as not empty when it really is. we have about 12 tanks set up like this and they all behave the same, and have since being commissioned new. so I am not really going down the road of thinking I have an isolated hardware issue. if I simulate 3.7mA to the module then I finally get a 0 raw value.
any advice on how to tighten this up so that at 4 or 3.9mA I can get a 0 raw?
any advice on how to tighten this up so that at 4 or 3.9mA I can get a 0 raw?