Mitsubishi Electric MELSEC Q Series Reference Manual page 60

(e) Time of occurrence
Time of transmission path switching is stored as a BCD code.
Un\G2786 to 2795
Un\G2796 to 2805
Un\G2936 to 2945
● Transmission path switching history can be checked in "Logging" of the CC IE Control diagnostics. (
Section 10.3.3)
● Transmission path switching history can be cleared by the following.
• Clearing error information in "Logging" of the CC IE Control diagnostics. (
• Setting Clear loop switching counter (SB0009) to ON. (
• Powering off and on the system or resetting the CPU module
58
History 1
History 2
History 16
b15 to
+0 Post-switching status
+1 No. of connected modules
+2 IN-side loopback station No.
+3 OUT-side loopback station No.
+4 System area (use prohibited)
+5 System area (use prohibited)
+6 Month (01 to 12 )
H H
+7 Hour (00 to 23 )
H H
+8 Second (00 to 59 )
H H
+9 Year (00 to 99 ), first 2 digits
H H
Page 568, Appendix 1)
b8 b7 to b0
Year (00 to 99 ), last 2 digits
H H
Day (01 to 31 )
H H
Minute (00 to 59 )
H H
*1
Day of week (0 to 6 )
H H
*1 0 : Sunday to 6 : Saturday
H H
Page 533, Section 10.3.3)
Time of
occurrence
Page 533,