Omron CS1W-ETN21 - Manual (Page 224)

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SECTION 8
Troubleshooting
This section describes information and procedures that can be used to troubleshoot problems that sometimes occur with
Ethernet Unit and Ethernet communications.
The Ethernet Unit makes up part of a network. Repair a defective Ethernet Unit as soon as possible as it can have a negative
effect on the entire network. We recommend that customers keep one or more spare Ethernet Units to allow immediate
recovery of the network.
8-1 Troubleshooting with Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
8-2 Error Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
8-3 Error Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
8-3-1 Error Log Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
8-4 Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
8-4-1 Startup Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
8-4-2 FINS Communications Problems
(SEND(090)/RECV(098)/CMND(490)) . . . . . . . . . . . . . . . . . . . . .
210
8-4-3 UDP Socket Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
8-4-4 TCP Socket Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
8-4-5 FTP Service Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
8-4-6 Network Connection Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
8-5 Troubleshooting with Response Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
8-6 Results Storage Area Response Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227