Rockwell Automation D64046.5.1 U MNL WIN DDMC - Manual (Page 24)

Chapter 1
Understanding How a DDMC32 System Works
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Data Highway Plus
Data Highway Plus (DH+) is the network that links the PLC-5
programmable controllers and the operator interface terminal so that they
can communicate with one another.
The Data Highway Plus lets you:
download ladder logic with SDS instructions into multiple PLC-5s
receive diagnostic messages from multiple PLC-5s
implement a centralized common operator interface for all control
elements of the DDMC32 system
If you want to know more about Data Highway Plus, refer to Data
Highway/Data Highway Plus Protocol and Command Set Manual
(publication 1770-6.5.16).
Dataliner Message Displays
Dataliner message displays (bul. no. 2706, series DL10) are highly visible
message display devices used for diagnostics, operator prompts, and status
messages. These displays can be used with your system as annunciator
panels for the messages sent by the DDMC32 software.
This chapter gave you an overview of how the DDMC32 system works to
diagnose faults and generate messages, and how the SDS and DFA
instructions work within the DDMC32 system. In addition, this chapter
described the components that make up a DDMC32 system.
Chapter 2 contains information for installing the DDMC32 hardware
components described in this chapter.
What to Do Next