Hi,
I have an alicat mass flow controller (MCR). I need to wire for both input and output signal. I have an FI-AI-110 to read in 0-5 V signal and an FI-AO-200 to sent out 4-20mA signal. The alicat 8 Pin mini-DIN-Out is such that pin (4) is analog input signal -4-20mA pin(6) is 0-5Vdc pin (7) is Power in pin (8) is ground. On the FP-AI-110, I wire pin (6) to slot (1), pin (7) to slot (17) and pin(8) to slot (18). I can read the flow reading fine in labview. I then connect pin (4) of the alicat to slot (1) of the FP-AO-200. I cannot sent a signal to the Alicat controller. I think I need to connect both pin (7) and pin (8) of the alicat to the fieldpoint, but though that they should already be connected?