Introduction, H1 live list, Chapter 9 – Rockwell Automation 1757-FFLDC4 FOUNDATION Fieldbus System User Manual User Manual
Page 125: Introduction h1 live list, Diagnostic web pages, Chapter

Rockwell Automation Publication 1757-UM012A-EN-P - July 2011
125
Chapter
9
Diagnostic Web Pages
Introduction
This chapter describes the diagnostic web pages of the linking device.
H1 Live List
The H1 Live List page is a list of devices on the linking device’s H1 ports. Each
port on the linking device is listed as a separate network and the linking device
appears as a device on each network list.
A device remains in this Live List as long as it responds properly to the token sent
from the Link Active Scheduler (LAS). The LAS will remove a device from the
Live List if the device does not use the token or immediately return it to the LAS
after three successive tries. The LAS periodically sends messages to the addresses
of devices not in the Live List. If a device returns a message, the LAS adds the
device to the Live List.
Topic
Page
- 1757-FFLDC2 FOUNDATION Fieldbus System User Manual 1757-FFLD4 FOUNDATION Fieldbus System User Manual 1757-FFLD2 FOUNDATION Fieldbus System User Manual 9308-RSFB1024ENE FOUNDATION Fieldbus System User Manual 9308-RSFB256ENE FOUNDATION Fieldbus System User Manual 9308-RSFB64ENE FOUNDATION Fieldbus System User Manual