Mimic contact closure with Moxa N-Port 5410?

fogled@mizzou

Anyone know if I can do this by specifically calling flow control lines to low/off?

thanks,

dnahman

Possibly --

You should be able to change the flow control lines via the command port. I looked at the Moxa site, but other than the windows library I didn't see any documentation on the protocol itself. Did you find documentation, or were you planning on wiresharking it?

Electrically, the flow control line will be flipping between a negative and positive control voltage, so it isn't exactly a contact closure -- you'd need to buffer that out with a transistor or a relay.

HTH,
David

fogled@mizzou

I've been having trouble getting the API out of Moxa. They just keep referring me to the OS applications. They do claim that the library is embedded in those programs, and I can reference them that way. I haven't looked yet.

Because... at this point, I've more or less discarded my idea of trying to do this. I've swapped out a 'contact closure only' device for one with a crude RS-232 (rx only) interface, and that works OK.

Thanks!