Mitsubishi Electric MELSEC-Q Series User Manual page 90

When the test is completed
When the test is not completed (error on all the stations)
88
5.
: ON
: Flashing
: OFF
6.
: ON
: Flashing
: OFF
: ON
: Flashing
: OFF
The line test 1 is started. During the test, the MST
LED on the master station flashes.
After the line test 1 is completed, the L RUN LED or
MST LED on the master station turns on.
• When the test is completed
L RUN LED: ON
MST LED: Flashing
The station number where data link was performed with
the slave station is stored in Line test 1 result (SW00B4
to SW00B7).
• For a standby master station, use Standby master
station test result (SB00B4).
• When the test is not completed (error on all the
stations)
MST LED: ON
ERR. LED: Flashing
The error code is stored into Line test result (SW00B8).
( Page 293, Section 11.3.2)