Dear Sir,
I have a healthy profibus communication between SIEMENS PLC S7 400 and Allen Bradley drive PF700 using 20-comm-p profibus dp module.
now i am just replacing old drive PF700 by PF753 keeping same 20-comm-p module and same GSD file and node address configuration and all.
but communication is not getting healthy and unable to establish communication on profibus.
as problem seems like old drive having 16bits parameters and new drive having 32bits parameters datalink size.
and there is now options from drive side or its not changeable the 32bit or 16bit selection.
now it requires how to deal or convert in PLC side such that it can handle 32bit link size data.
i am sending supporting documents.
please help.
I have a healthy profibus communication between SIEMENS PLC S7 400 and Allen Bradley drive PF700 using 20-comm-p profibus dp module.
now i am just replacing old drive PF700 by PF753 keeping same 20-comm-p module and same GSD file and node address configuration and all.
but communication is not getting healthy and unable to establish communication on profibus.
as problem seems like old drive having 16bits parameters and new drive having 32bits parameters datalink size.
and there is now options from drive side or its not changeable the 32bit or 16bit selection.
now it requires how to deal or convert in PLC side such that it can handle 32bit link size data.
i am sending supporting documents.
please help.