Mitsubishi MELSEC-Q Series User Manual page 170

7 PROCEDURE BEFORE STARTING THE DATA LINK
MELSEC-Q
From the previous page
The test result is displayed using the "LED"
indicator lamps of the master module.
[At normal completion of test]
The "L RUN" LED lights up.
[At abnormal completion of test]
The "MST" LED lights up and the "ERR." LED
flashes.
The test results are stored in SW00B8
(line test result).
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