2 CH Comms Limit? 3 w/RS422?

[dbtoolco 0]

Quoting Crossbow, I'd like to implement this setup. I've got an FX3U with 2 serial ports (an FX3U-232BD and an FX3U-232ADP): 1)communicates to a Keyence vision system controller oh CH1 2)CH2 currently open --(want to use this one for programming/monitoring) Also, an HMI (Panasonic GT32) communicates via RS422. How can I set up CH2 for programming/monitoring? Can it be on CH2 or does it have to be CH1? Are these parameters changed in the [Parameter]-[PLC Parameter]-{PLC system(2) tab? Or are they configured through ladder logic rungs? Does the built in mini-din 8 RS422 connection count as a comms channel? Edited 19 Nov 2008 by dbtoolco

[Crossbow 295]

If one was to be used for programming connection, the simplest method is the FX3U-422-BD board, which gives another 8-pin round RS422 port like the one built in. CH1 is the first ADP or the BD CH2 is the second ADP or the first ADP when using a BD You should not have to change any settings from default to program via the RS232 options. But to change settings, you can write to data registers or use the PLC parameters.