Mitsubishi Electric MELSEC QS Series User Manual page 103

7
PROCEDURE BEFORE STARTING THE DATA LINK
(5) Conduct a line test
After performing Write to PLC from GX Developer, turn OFF and ON the
PLC, or reset the safety CPU module and then cancel the reset status.
Then, conduct the specified line test.
(6) Check the result
Check the result of the line test with the LED on the safety master module.
Also refer to the link special registers (SW00B4 to SW00B7, SW00B8),
which store the test results.(Refer to Table 7.1.)
(7) Return to the mode to be used
In GX Developer, change the mode setting from "Line test" to "Safety
remote network-Ver.1 mode", and perform write to PLC.
Table7.1 LED indications and link special register states at the line test completion
Line test type Status
"MST" LED
Response
"ERR." LED
present
"L RUN" LED : ON
Line test 1
"MST" LED
No
"ERR." LED
response
"L RUN" LED : OFF
"MST" LED
Normal
"ERR." LED
"L RUN" LED : ON
Line test 2
"MST" LED
Abnormal
"ERR." LED
"L RUN" LED : OFF
From the previous page
(Refer to Table7.1.)
End
LEDs on safety master
module (SW00B4 to SW00B7 (6B4
: Flashing
Partially OFF (Some stations are normal.)
: OFF
: ON
: Flashing
: Flashing
: OFF
: ON
: Flashing
7.8 Checking the Connection Status (Line Test)
Results of line test 1
to 6B7
H
All OFF (All stations are normal.)
(Station No. data of the stations that
received responses are updated.)
All ON (All stations are abnormal.)
(Station No. data of the stations that
received responses are updated.)
—
—
Line test result
)) (SW00B8 (6B8 ))
H H H
0: Normal
Other
: Error code
than 0
(BA1B) is stored.
0: Normal
Other
: Error code
than 0
(BA19) is stored.
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