DB-9 serial port testing on ML-1400

hello friends

i have an old ML-1400 which i purchased from a ship owner which was used in that ship

now i wanted to test the serial port(DB-9) of this PLC

as far as normal serial port which are on PC i know that shorting pin 2&3 and i will get same responce back on my PC hyperterminal which i was typing
but how to check PLC db-9 COM PORT i dont know

can anybody tell me how to check it??

waiting for your replies

Have you tried to communicate with it using RSLinx?

A null-modem cable.

I was not aware that there was a DB-9 serial port on a ML1400, I thought it was the same minidin as the other ML plc's.

Alan

alan_505 said:

I was not aware that there was a DB-9 serial port on a ML1400, I thought it was the same minidin as the other ML plc's.

Alan

Click to expand...

It has both. See PDF

thanks mickey

just tried it with with null modem cable and it worked
it means my commport is o.k


thanks for your suggestions:site:

dharmaraj12 said:

thanks mickey

just tried it with with null modem cable and it worked
it means my commport is o.k


thanks for your suggestions:site:

Click to expand...

You're welcome.