Omron GQ-CRM21, Operation Manual

Page: 80 / 103

5 - 1
CompoNet Gateway Unit for CC-Link Operation Manual
5-
1 Tro
u
b
lesho
ot
ing Comp
oNet
Ne
two
rk
Er
ro
rs
5
5-1 Troubleshooting CompoNet Network
Errors
This section describes how to handle errors that may occur in the CompoNet network.
5-1-1 CompoNet Network Errors
This section describes the meanings of the indicators and seven-segment display when errors occur in
the CompoNet network. It also provides countermeasures for handling the errors.
Meanings of Gateway Unit Indicators and Procedure for Handling
Errors
If an error occurs, the general location of the error is shown by the status of the indicators.
With the Gateway Unit, in addition to these indicators, a seven-segment display shows the location and
content of errors.
5-1-2 Troubleshooting Sequence When an Error Occurs
1. Determine the general location of the error.
Check the pattern in which the indicators are lit to determine whether the error occurred in the Gate-
way Unit or in the network.
↓
2. Determine the details.
Check the seven-segment display and the remote inputs (RX) in the Status Area to determine the
location and content of the error.
↓
3. Determine the cause of the error.
Consider the onsite conditions in relation to the circumstances of the error, and determine and
remove the cause of the error.
↓
4. Take countermeasures.
Check the system status in the Unit operation after error detection column, check the required oper-
ations in the Countermeasures column, and restore system operation to normal.
The CompoNet error detection functions, operations following error detection, and countermeasures
are described on the following pages.