Mitsubishi A1SJ61BT11 User Manual page 153

7 DATA LINK PROCEDURE
Continued from the previous page
The test results are displayed on the "LEDs" of master module.
[When at least one station is communicating normally]
The LEDs are turned on in the following order: "SW"
The test result is stored in SW00B4 to B7. However, the test is performed for 64 stations, so ignore the bits for the
unconnected stations.
SW
M/S
PRM
TIME
LED on
PRM All stations have error, or cable is disconnected.
Test cannot start. (Cable is disconnected before the test,
none
or power is off at all stations.)
End
Repeats until all
stations become faulty.
Cause
"M/S" "PRM" "TIME".
Error code storage area
7 - 17
MELSEC-A
SW00B8