Communication between CPU 315-2DP and Non Siemens Profibus Slave

Hunky

Dear All,

Thanks in advance for your help.

I am doing a small project where in i has to establish the Profibus communication between the 315-2DP and Unisab Controller on DP port. On the PLC side i am connecting the Profibus Connector but on theUnisab it has to be terminated on the TerminalBlocks. I am unable to connect the terminating resistor.

In the hardware configuration i has added the GSD file and downloaded to the PLC. But PLC unable to detect the device.

I found one terminating jumper on the UNISAB and connnected it also. But still PLC is unable to detect the Controller.

I want to know how i can connect directly resistor to the profibus cable on the UNISAB Controler. What should be the resistor value? Is it permissible?

Please help me. I am unable to sort this problem.

Regards
PLC Engineer.