Analog 2-wire, 4-wire

Hello, 

I'm dealing with a problem with an analogue and I can't help myself now. I have experience with analogues in general, but unfortunately I still can't get the hang of this 315, so I turn to you.

To simplify, the only thing I have in my HW configuration is this:

6ES7 315-2EH14-0AB0 - CPU 315-2PN/DP

6ES7 155-6AU02-0BN0 - IM 155-6 PN ST

6ES7 134-6GB00-0BA1 - AI 2xI 2-/4-wire ST_1

We have only a 2-wire pressure sensor connected to the analog card. + from the sensor to terminal 5 and - to terminal 9 according to the manual for the card. Unfortunately, although if we connect an ammeter in series we measure around 8mA, but the watch table still only shows 0.

Do you know what this could be?