FI-AO-200 and FI_AI-110

[Boopster]

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?

[RavensFan]

I'm pretty sure you need to connect some power source to the V terminal of the module in order to complete the analog output loop.

[Boopster]

Correction,

On my alicat 8 pin mini din I have the following:

Pin #

(1) 4-20mA primary output signal

(4) analog input signal (4-20mA)

(7) Power in

(8) ground (common for power, communications and analog signals)

These are the connections I was thinking of making  using the FP-AI-110 and FP-AO-200.  Please see if I am missing anything before i wire it up.

Alicad pin 1 to FP-AI-110 I (in)

           pin 8 to FP-AI-110 com

           pin 4 to FP-AO-200 I (out)

           pin 7 to FP-AO-200 V (sup)

given that no external power is applied to the unit.