Rockwell Automation 2706-DXX Dataliner Message Display DL5 Series - Manual (Page 86)

2706-UM001A-US-P
10-6 Using the DL5 Parallel Port to Replace Pilot Lights
Using Priority Input Mode In Priority Input mode, only one message (the highest priority) can be on
the screen at a time.
If you want to operate the DL5 in priority mode, follow these steps:
1. You must decide whether the DL5 will be set for positive or negative
logic. If positive logic is selected, voltage on a data line will represent
an ON condition. If negative logic is selected, the absence of voltage on
a data line represents an ON condition. Chapter 8 describes how you can
set the DL5 for either positive or negative logic.
2. Select the round robin mode of operation as described in Chapter 8.
3. Place the DL5 in the edit mode and program messages for the message
numbers that are associated with each input. Chapter 3 describes how to
enter messages.
The following message attribute settings are suggested to provide the
clearest round robin functionality.
– Line 1, line 2, or both lines can be selected as desired.
– Scroll message can be selected as desired.
– Wait time can be set as desired and will control how long a message is
displayed before the DL5 goes on to the next message.
– Select Auto Clear, to clear the screen after each message. Otherwise
you might have a portion of a two line message remaining on the DL5
when a single line message follows.
Note: The DL5 always clears the display when no inputs are on.
– Auto Repeat has no function in Round Robin mode.
– Flash Message can be selected as desired.
4. Place the DL5 in run mode.