1761 NET ENIW ethernet interface with SLC5/04 DH485 port

[ahsan1820]

Dear,
I have to communicate my SLC 5/04 CPU channel0 ,configured as DH485, i have an ethernet interface 1761 NET ENIW. I have read how to configure this 1761 NET ENIW via PC comm port ,using ENIW configuration utility.
I want to communicate in the following manner
PC ethernet port to ENIW ethernet port using ethernet cross over cable and RS 232 port to SLC channel0(configured as DH485) via a 1761-CBL-PM02 series C cable.

But please tell me if there will b any issue with channel 0 of slc is configured as DH485 and ENIW has rs 232 port.

 

[Branded]

I am doing this exact same thing on my desk at the moment.
I do not think you can use DH-485. Ch0 on the SLC 5/04 is RS-232 (An electrical connection standard), on top of that electrical connection you can use DH-485 (A communication protocol, not electrical) or DF-1 (Another communication protocol, not an electrical specification).

The Net ENI module has the ability to translate Ethernet/IP into and back from DF1 only.
http://literature.rockwellautomation.com/idc/groups/literature/documents/um/1761-um006_-en-p.pdf
This is the manual for the net eni. It does not contain any references to DH485, but it does contain references to DF1. That is a simple indication that DH485 is not a supported protocol.

http://www.plctalk.net/qanda/archive/index.php/t-11382.html
This thread indicates you will need a different module entirely, one that speaks both DH485 and Ethernet protocols.

Perhaps something like this device.
http://www.prosoft-technology.com/Products/Gateways/EtherNet-IP/EtherNet-IP-to-DH-485-Gateway

But that is all I know.