Micrologix 1200 not responding on DF1

Dear All

I am trying to communicate with micrologix 1200 on DF1 but it is not respoding. PLC is in power on and run mode. DF1 settings in Rslinx classic are okey and communication cable is also good. with the same DF1 settings and communication cable i can communicate with spare micrologix plc that i am having. Please advise me for this communication problem.

Regards
Manasi

Have you tried autoconfigure in RsLinx yet?

Do you have the offline file for your ML1200 to check the configuration of its comm port?
Was there anything connect to the Ml1200?
The port can be configured for DF1,DH485 or ASCII.