Does anyone have any kind of experience working with mA I/O?
Im facing this problem at work.
The system (a liquid surface level indicator) sends a signal ranging from 1 - 20 mA's to a cabinet which somehow processes that output to computer input. The company who manifactured this back in the late 90's is no longer available, so there is no support / service for these devices.
The problem is once a signal is received it only keeps counting up, not decreasing at all until reset of the whole system. This is kinda major problem since liquid is consumed constantly.
I am the one of us who has most experience with computers so I have to deal with this frequently. Where should I start looking for the problem?