GE GFK0579B 用户手册
8
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Chapter
8
Diagnostics and Fault Clearing
This chapter describes the diagnostics capabilities of the Remote I/O Scanner, and
explains how faults on a remote drop can be cleared from a Hand–held Monitor or
programmer.
explains how faults on a remote drop can be cleared from a Hand–held Monitor or
programmer.
Overview
The Remote I/O Scanner receives all standard Series 90–70 board–level diagnostics
from modules in the remote drop. These faults can be viewed and cleared from a
programmer fault table, or using a Genius Hand–held Monitor.
from modules in the remote drop. These faults can be viewed and cleared from a
programmer fault table, or using a Genius Hand–held Monitor.
In addition, the Remote I/O Scanner itself provides the following diagnostics:
H Device Number conflict
H Loss of communications
H Loss of controllers
H EPROM fault
H RAM fault
H Processor fault
H Loss of communications
H Loss of controllers
H EPROM fault
H RAM fault
H Processor fault
Maximum Number of Uncleared Faults
The Remote I/O Scanner can store up to 64 uncleared faults at a time. Faults are stored
in time sequence. If a 65th fault occurs, it will replace the oldest fault currently stored
in the table. The replaced fault is lost.
in time sequence. If a 65th fault occurs, it will replace the oldest fault currently stored
in the table. The replaced fault is lost.