Troubleshooting, Troubleshooting -2 – Rockwell Automation 1746-HSCE,D17466.5 High-Speed Counter Module User Manual

Page 108

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Publication 1746-UM006B-EN-P - August 2005

5-2 Start-Up, Operation, and Troubleshooting

Troubleshooting

The key tools in diagnosing problems are:

module LEDs

SLC processor CPU fault LED

SLC processor fault code (S:6)

Status Word in the module’s Input Data File (I:e.0)

Configuration Error Code in the module’s Input Data File
(I:e.4/0-3)

The following table will help in isolating problems:

Fault LED
OFF

turn on and off indicating
input signal status

turn on and off indicating
Physical Output status

turn on and off indicating
Soft Output status

HSCE

OUTPUT INPUT

FAULT

1

2

3

4

5

6

7

0

A

B

Z

LS

CPU Fault
(SLC
Processor)

Fault LED
(Module)

Status
Word
(I:e.0)
Module

Problem

Action

flashing red

off

-

SLC system fault

Refer to SLC System Fault.

flashing red

solid red

-

Module diagnostic error

Cycle power. If condition
persists, replace the
module. Refer to Module
Diagnostic Errors
.

off

flashing red

-

Module configuration
error

Refer to Module
Configuration Errors

off

off

bit 13 set

Linear counter overflow

Reconfigure module and
restart operation. Refer to
Application Errors.

off

off

bit 5 set

Rate Counter or Rate
Measurement Overflow

Change rate period or
lower input rate. Refer to
Application Errors

off

off

-

Counter value does not
change

Refer to Application
Errors.

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