4. Troubleshooting (PROFIBUS DP)
4.2.2.1 Master: Communication Error
Master Unit LED | Error |
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BF | ST |
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Light | Red | Communication |
| - Slave disconnected from the network | ||
OFF | Light | error |
| (Remote I/O communication error) | ||
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| Blinking |
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| - Slave not added to the network (Scan list | |
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| collation error) |
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| - Nonstandard wiring |
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| - No or too many terminating resistors | |
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| - Noise intrusion |
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4.2.2.1.1 Master/Slave: Communication Error |
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| BF | ST |
| Master LED Condition |
| Light OFF | Red Light Blinking | ||
| Absent Slave LED Condition |
| Light OFF | Green Light Blinking | ||
| (Communication error) |
| Light OFF | Red Light Blinking | ||
116 | Fieldbus I/O Rev.6 |
