Rockwell-automation 1747-DSN DISTRIBUTED I/O SCANNER Bedienungsanleitung PDF herunterladen (Seite 32)

Chapter 4

Operation and Troubleshooting

4–2

During normal operation, the LEDs are illuminated as shown below:

SCANNER

FAULT LED is off

COMM LED is solid green

FAULTCOMM

DSN

When the SLC processor is taken out of run mode, the COMM LED remains

solid green. The inputs of the blocks connected to the scanner are still read.

However, I/O block outputs are set to 0 (disabled).

Normal Operation

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