Mitsubishi Electric MELSEC Q Series Reference Manual page 314

(b) Checking for cable faults of own station
1.
When an own station cable has fault, any of SB0066 to SB0069 and SB006C to SB006F is turned
ON.
2.
The rate of line error occurrence can be checked in SW0068 to SW0069 and SW006A to SW006B.
When Clear IN-side transmission error counter (SB0007) is turned ON, SB006E and SW0068 to SW0069
can be cleared.
When Clear OUT-side transmission error counter (SB0008) is turned ON, SB006F and SW006A to
SW006B can be cleared.
No.
SB0007 Clear IN-side transmission error counter
SB0008 Clear OUT-side transmission error counter
SB0066 Own station's IN-side link-up status
SB0067 Own station's OUT-side link-up status
SB0068 Own station's IN-side link establishing status
SB0069 Host station OUT-side link establishment status SW0069
Own station's IN-side error frame reception
SB006C
status
Own station's OUT-side error frame reception
SB006D
status
SB006E Own station's IN-side error frame detection
SB006F Own station's OUT-side error frame detection
312
Description
—
No.
SW0068 IN-side line error occurrence rate (Max.)
IN-side line error occurrence rate (present.)
SW006A OUT-side line error occurrence rate (Max.)
SW006B OUT-side line error occurrence rate (present.)
Description
—
—