Rockwell Automation 2706-DXX Dataliner Message Display DL5 Series - Manual (Page 51)

2706-UM001A-US-P
Chapter
7
Using the Parallel Port
Chapter Objectives
This chapter provides:
•
A description of the parallel port.
•
Data format requirements for parallel input.
•
Descriptions and examples of message triggering.
•
Parallel port interface examples.
Note: This chapter describes how you can use the parallel port to trigger
messages. If you require information on how to input variable data, refer to
Chapter 9.
Description of the Parallel Port
You can use the parallel port of the DL5 to trigger messages and to input
variable data. The parallel port is located on the back of the DL5. The
parallel port terminals (TB1) are labeled as shown on the next page.
!
ATTENTION: The DL5 only has single direction
communications (receives data, cannot send data). Do not use
the DL5 for critical display applications. Single direction
communications does not provide verification that messages
sent by the control system have been received and displayed by
the DL5.