User manual XC-32 XC-320 XC-4200
VII.5.2 - Solution
You cannot establish two mux TCP connections to the same destination port at the same
time.
To solve this problem, we will establish each mux TCP connection only when technician's
terminal will be powered.
The technician must power off his terminal to permit the other technician to manage the
PLC.
When a terminal is powered, there is at least one signal activated (RTS for a terminal or
DTR for a terminal emulator). You just have to link this signal to serial port's DCD entry of
Xcell and to configure management of DCD signal by Xcell (serial linectrl modem). TCP
connection will be established only if terminal is powered. This connection will be stopped
if DCD signal is not on (terminal is off).
-50-