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5.10 Set Serial Ports
The Set Serial Ports Sub-Menu displays three System Settings, all of which may be edited, and one optional
item. For the
Dflt Pgm Port
System setting, only MJ1-232 can be selected, unless a Modem (XMC) COM
module is installed.
Dflt Pgm Port
MJ1-232
= MJ1 RS232 port is the default programming port
Modem
= Modem COM module is the default programming port
MJ2 RS485 Bias
No
= MJ2 RS485 bias resistors are not switched in
Yes
= MJ2 RS485 bias resistors are switched in
MJ3 RS485 Bias
No
=
MJ3 R5485 bias resistors are not switched in
Yes
=
MJ3 R5485 bias resistors are switched in