Rockwell Automation 1779-KP5_KP5R ORD.1779-5.3 - Manual (Page 31)

Chapter
4
4Ć1
Addressing from Data Highway II
In this chapter, we provide a description of how to address the following
links from a node on Data Highway II:
A Data Highway Plus Link Using Local Link Addressing (Link = 0)
Another Data Highway II Link Using Remote Link Addressing
(Link > 0)
A Data Highway Plus Link Using Remote Link Addressing (Link > 0)
The 1779-KP5 does not support Data Highway II time-critical commands
because these commands are not supported by Data Highway Plus. The
1779-KP5 rejects time-critical commands and returns an error reply to the
initiating node. For more information on error codes, refer to your
interface manual and Chapter 6 of this manual.
The 1779-KP5 replies to the following diagnostic commands from a Data
Highway II node:
Diagnostic Status
Diagnostic Loop
The 1779-KP5 does not contain Data Highway II diagnostic counters.
This is because Data Highway II counters are application layer counters
and the 1779-KP5 does not provide application layer functions.
Refer to Chapter 6 for a list of 1779-KP5 diagnostic status bytes.
Chapter Objectives
Limitations on Sending
Commands