Programmer (HHP) User guide

Chapter 19
Common Procedures
19–7
2. Arrow down to the desired baud rate and select it.
n times
ENT
The MicroLogix 1000 HHP resets itself to the new baud rate and runs
through the power-up sequence.
If you configure your program to be compatible with Series C or later
MicroLogix 1000 discrete controllers or MicroLogix 1000 analog
controllers, option number 7 in the menu functional area is
COMMS (instead of
BAUD RATE). This menu option allows you to change any or all of the
following:
• the controller’s active communication protocol
• the default baud rates for each protocol
• the default node addresses for each protocol
The steps below walk you through the five sub-menus of the
COMMS option.
Press
ESC at any time to exit the sub-menus.
1. Enter the menu and choose the option
COMMS. The first screen that
appears is the Main Protocol sub-menu, as shown below.
7
MENU
I
ENT
M A I N P R O T O C O L
D F 1 D H 4 8 5
Use this sub-menu to specify which protocol the controller should attempt
to establish communication with first. Although the MicroLogix 1000
controller will automatically find which protocol is active (DF1
full-duplex or DH-485) and establish communication accordingly, you
can shorten the connection time by choosing the appropriate main
protocol.
Changing the Micro
Controller’s Communication
Defaults