Rockwell Automation 2706-NP3 DL20 OFFLINE PROGRAMMING MANUAL - Manual (Page 20)

Configuration Functions
Chapter 4
4–5
Menu option 4 - Set Up DL20 Parallel Port sets parameters for the parallel
port of the DL20. The settings are stored in the file PIOFILE.DAT in the
DL20 directory and transmitted to the DL20 at download.
To configure the parallel port of the DL20 Display:
1. Type 4 and press [Enter] to select 4 - Set Up DL20 Parallel Port from
the Main Menu.
The following screen appears.
To accept the default values
press [End] to save settings
and return to Main Menu.
2. Specify whether the parallel port will use high true logic or low true logic
input levels. The default is high true logic. Press [Enter] to accept the
default. Type N and [Enter] to use low true logic.
3. Specify whether message triggers use binary or BCD format. The
default is binary message data. Press [Enter] to accept the default.
To use BCD format, type N and [Enter].
4. Specify whether variable data uses binary or BCD format. The
default is binary variable data. Press [Enter] to accept the default. To use
BCD variable data, type N and [Enter].
5. Specify whether the parallel port uses Time Driven or Event Driven
Sampling. To accept the default of Time Driven Sampling, press [Enter]
and skip to Step 9.
Note: Time Driven Sampling is recommended for use with
Allen-Bradley programmable controllers.
To specify Event Driven Sampling, type N and press [Enter].
Configuring the
DL20 Parallel Port