[?]: Communication between 2 SLC 500 by rs232

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Str3atWarrior
Posts: 33
Joined: Fri Jul 03, 2009 8:12 pm
Location: America

[?]: Communication between 2 SLC 500 by rs232

Post by Str3atWarrior »

Hi,

Is there a way to make 2 SLC 500 communicate by RS232?
I need to exchange some data between them using.
One is on the second floor or a building and doesn't have an ethernet port, and the other one is in the basement and does have an ethernet card.

Any schematic of cable or other would be appreciated.

Thanks

Str3atWarrior
Ryzhij
Posts: 406
Joined: Mon Mar 31, 2008 11:29 am
Location: Ryazan, Russia

Re: [?]: Communication between 2 SLC 500 by rs232

Post by Ryzhij »

If your both SLC has DH+ ports it will be more smart to organized the link via DH+ net.
You can use MSG instruction for it.
Str3atWarrior
Posts: 33
Joined: Fri Jul 03, 2009 8:12 pm
Location: America

Re: [?]: Communication between 2 SLC 500 by rs232

Post by Str3atWarrior »

Yea but one of them is a 1747-L551/C with ethernet and rs232 port only. Since the customer don't want to change the others processors to ethernet ones, i need to be able to connect by rs232.
Str3atWarrior
Posts: 33
Joined: Fri Jul 03, 2009 8:12 pm
Location: America

Re: [?]: Communication between 2 SLC 500 by rs232

Post by Str3atWarrior »

Found an easy solution.

Use MSG messages on the source PLC, working great with 2 Sena LS-100 over ethernet, PLC think that it's communication with an RS232 port.