Hello, I am having issues with connecting the QBM2030-1U differential pressure sensor. The analoge input card i'm using is AI 4xU/1 2-wire ST (6ES7134-6HD01-0BA1), The output signal is 0-10V from de differential pressure transmitter. To my understanding G(+) is powered with 24VDC, M(0) is connected to U1- and U is connected to U+ on the analoge input card, but i'm still getting error and cant see any signal in TIA portal

Thanks in advance

AI card manual here:  https://support.industry.siemens.com/cs/de/en/view/59753624

Rambling Rant ON

Yet another 3-wire voltage device trying to connect to a Siemens analog input, but Siemens does not recognize the existence of 3-wire devices with a common connection  between signal ground and DC power ground.  

Siemens calls a 4-wire transmitter one with 2 separate wires for DC (or AC) power and 2 separate wires for a signal output, and so does the rest of the world..

Siemens calls a 2-wire transmitter one that needs a DC power supply in the loop, so the transmitter only has 2 wires.  That is also conventional terminology,

But Voltage output devices are typically 3-wire or 4-wire, never 2-wire, like a 2-wire loop powered current output transmitter.   So is a "2-wire voltage" device, assumed to have 2 separate power wires, but since there is no 2-wire, loop powered voltage instrument (what the rest of the world calls 4-wire voltage device) Siemens calls a 2-wire voltage device?   How would anyone ever find out?   You're just supposed to know.  I have to speculate that such is the case.

Rambling rant OFF.

I would have wired it the same way you have wired it.  

What voltage is the UV0 terminal providing? with respect to UV- or M, if available.

Can you apply a pressure to get the output off zero and measure to see if the signal output, with respect to M(0) goes to some voltage value (with a voltmeter on the U and M terminals), meaning that instrument is getting DC power and operating, but the signal is not being recognized by the AI card.  

If the transmitter changes output with pressure, then my suggestion is to try momentarily jumpering M (Analog ground) to UV0 to see if that produces the grounding needed for the signal to be 'seen' by the AI card.  That's assuming the M terminal is somewhere on the terminal block, which it might not be.  It might only be on the "light BaseUnit".  

But the diagram shows M is isolated from the voltage input A/D, so even that might not work.