Omron CJ1W-EIP21 ユーザーズマニュアル

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Using the LED Indicators and Display for Troubleshooting
Section 14-2
Ethernet Information Tab 
Page
The Ethernet Information Tab Page shows the communications status at the
communications driver level. The error counter information can be used to
confirm whether communications problems have occurred. The tag data link
information can be used to confirm characteristics such as the bandwidth
usage (pps).
14-2 Using the LED Indicators and Display for Troubleshooting
14-2-1 Errors Occurring at the EtherNet/IP Unit or Built-in EtherNet/IP 
Port
Errors Related to CPU Unit 
Data Exchange
The 7-segment display alternates between the node address and error code.
Indicator
Error
Cause
Unit operation (Flag 
status)
Error 
log
(hex)
Countermeasure
MS
NS
7-segment
Flashing 
red
Not lit
H1
Duplicate unit 
number
The same unit 
number is set on 
another Unit.
Operation stops.
---
Set the unit num-
bers correctly and 
restart the Ether-
Net/IP Unit or built-
in EtherNet/IP port.
Flashing 
red
Not lit
H2
CPU Unit 
faulty
---
Operation stops.
---
Replace the CPU 
Unit if the error 
recurs when the 
CPU Unit is 
restarted.