SCADAPack 535e Analog Inputs

[MitchellM]

Hi there,

Is anybody else experiencing issues with the 535e units losing their analog input signals. We run the units extensively in our wastewater network monitoring well levels, pressures, currents etc and are starting to see a large increase in them dropping out to an under range value then returning to the previous known value within seconds.

We report back to GeoSCADA using DNP3 protocol and have found a constant 4-20mA value on the input does not produce this fault, it is only a constantly varying input that does. Have proven it’s not loss of 24V supply to the units or instruments. 

Anyone else experiencing this?

cheers