Allen-Bradley MicroLogix 1200 User Manual page 67

Use the Communications Toggle Push Button to change from the
user-defined communication configuration to the default
communications mode and back on Channel 0. The parameters of the
Programmer/HMI Port are fixed at the default communications
configuration. The Default Communications (DCOMM) LED operates
to show when the controller is in the default communications mode
(settings shown on page 4-2).
0
1
COM
Communications Toggle
Push Button
The Communication Toggle Push Button must be
TIP
pressed and held for one second to activate.
The Communication Toggle Push Button only affects
the communication configuration of Channel 0.
Communication Connections
0
1
COM
Publication 1762-UM001D-EN-P - March 2004
4-3