[?]: SIPART DR19 AI1 reading problem

[kelertas]

Hello,

I got some problem with AI1 analog signal reading. My transmitter has 4-20 mA output and I use AI1 input to read this signal. I use 6DR2805-8J measuring range plug to convert 4-20mA to 20-100mV.
For transmitter supply of 24V I use external power supply not from SIPART.

So the problem is that when I measure current in the loop I got from 4 to 20 mA depends on transmitter output. But SIPART shows me "-oFL" warning.

Structure switches of SIPART looks like:

S1=0
S2=0
S3=0
S4=0
S5=0

AI1 CAE1 looks like

MA1 = 20
ME1 = 100

Maybe somebody knows what I did wrong?

Thanks in Advance