SMA Modbus EDMM-10, Руководство по установке

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8 Troubleshooting SMA Solar Technology AG
Installation Manual 51 EDMM-WAGO-IO-IA-en-11
8 Troubleshooting
Fieldbus failure
A fieldbus failure occurs if, for example, the master is switched off or the bus cable is interrupted. An error in the master
can also result in a fieldbus failure.
Local bus error
A local bus error is displayed via the I/O LED.
The I/O LED flashes red: In the event of a local bus error, the fieldbus coupler generates an error message (error code
and error argument). A local bus error occurs, for example, when an I/O module is unplugged. If this error occurs
during operation, the output modules act like a local bus stop. Once the local bus error has been remedied, switch the
fieldbus node off and on again to restart the transmission of process data.
For detailed information on evaluation of the LED statuses (see Section 4.8 "LED Signals", page 16).