The ET200AL AI module ... it has many different options for each input like Voltage / Current / PT100 etc. 

I am using this module along with a Profinet to Modbus convertor from Hilscher. ( Net TAP 50 ) 

All fine so far and I am able to read the analog values in the Modbus register .

Question I have is how to configure the AI module so that all inpout channels are 4-20mA / 2Wire only ? 

Can a configuration file be downloaded into it ? What tools i need. I already have a Proneta and TIA 

@mopSo4

I understand. But my final setup consists only of the following items :

A. Profinet Interface module ( 6ES7157-1AB00-0AB0)

B. DI Module ( 6ES7143-5AH00-0BA0)

C. AI Module ( 6ES7144-5KD00-0BA0)

D. 24V dc power supply

The Profinet interface module is connected to a Hilscher Profinet to Modbus RTU converter. The link to the converter is here : Net Tap 50  

And my PC connects to the NetTap 50 via RS232 serial port to read the AI and DI sensor values as Modbus registers. 

If you can see in the above setup there is no Profinet controller like a PLC. In such a case how do i configure the AI module ?  

Page 21 of the AI card manual
https://cache.industry.siemens.com/dl/files/231/89255231/att_882153/v1/et200al_ai_4xu_i_rtd_4xm12_manual_en-US_en-US.pdf

says that configuration is Profi task:

"4.2 Parameters of the analog input module AI4xU/I/RTD4xM12

The table below lists the parameters that can be set. The effective range of the parameters that can be set depends on the type of configuration. The following configurations are possible:

● Distributed operation on PROFINET IO

● Distributed operation with PROFIBUS DP"

Gotta get in there with Profi somehow . . .