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Omron CJ2 CPU UNIT - 6 Troubleshooting

Omron CJ2 CPU UNIT
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6-1
CJ2 CPU Unit Hardware User’s Manual
6
This section describes how to troubleshoot problems that may occur with a CJ2 PLC.
6-1 CPU Unit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-1-1 Errors and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-1-2 Checking Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-1-3 Checking Detailed Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-1-4 Reading Error Log Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-1-5 I/O Table Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6-1-6 Types of Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6-1-7 Handling Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6-2 Troubleshooting Built-in EtherNet/IP Port Errors
(CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only) . . . . . . . . . . . . . . . . . . . . . . . 6-25
6-2-1 Checking Built-in EtherNet/IP Port Error Status . . . . . . . . . . . . . . . . . . . . . . 6-25
6-2-2 Checking Error Status at the EtherNet/IP Port Seven-segment Display . . . . 6-26
6-3 Non-CPU Unit Errors and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
6-3-1 Error Causes and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Troubleshooting

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