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Problems During Power-Up
The Ethernet Interface may not transition directly to the Operational State upon power± up or restart. It may stop in another state or a fault may have been detected. Refer to the table below for possible states your Ethernet Interface can assume after completion of
LED Pattern | Where Stopped | Possible Cause | Corrective Actions | |
MODULE OK On | Loaderutility | Interface requires a (re)load | Load the Communication Soft- | |
STATUS OK Blinking |
| ofcommunicationssoftware. | ware. See Procedure4. | |
MODULE OK On | Operational | Transceiverortransceiver | Connect cable & transceiver. | |
ONLINE Off |
| cable not (properly) con- |
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| nected. |
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| SQE not enabled on trans- | Set SQE ON on transceiver in ac- | |
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| ceiver. | cordwithmanufacturer's | |
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| instructions. | |
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| Use LM90 configurator to set | |
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| LAN Online Soft Switch* set | LAN Online Soft Switch* to | |
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| to NO. | ªYESº. See Procedure3. | |
MODULE OK On | Operational | Exception condition oc- | Use the Station Manager LOG | |
ONLINE On |
| curred. | command as explainedin | |
STATUS OK Off |
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| Chapter 6 under the section, | |
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| ªTroubleshootingWhen | |
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| STATUS OK LED is OFFº. | |
MODULE OK Blink- | Soft Switch Entryutility | Invalid Soft Switch Data. | Correct Soft Switch Data and | |
ing Slowly |
| Soft Switch Data checksum | Restart or Reload Ethernet Inter- | |
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| invalid. System Software | face. See Procedures 3 | |
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| detectedincompatibleMAC | and/or4. | |
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| address assignments. Cer- |
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| tain system errors. |
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| IP address = 0.0.0.0 |
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MODULE OK Off | Fatal Error. | Inspect the Interface for loose | ||
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| components, reseat the Inter- | |
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| face, and Restart. Recheck | |
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| Logicmaster90Configuration. | |
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| Examine PLC Fault Table for | |
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| clues. If the problem persists, | |
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| replace the Interface. | |
* |
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TCP/IP Ethernet Communications User's Manual ± January 1996 |