Mitsubishi QJ71GP21-SX, Reference Manual

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3
- 12 3.3 Buffer Memory
3.3.3 Transmission path switching history
3
SPECIFICATIONS
(e) Time of occurrence
Time of transmission path switching is stored as a BCD code.
POINT
(1) Transmission path switching history can be checked in [Logging] of CC IE
Control Network Diagnostics. ( Section 10.3.3 Logging)
(2) Transmission path switching history can be cleared by the following.
• Clearing error information in [Logging] of CC IE Control Network
Diagnostics. ( Section 10.3.3 Logging)
• Setting Clear loop switch count (SB0009) to ON.
( Appendix 1 Link Special Relay (SB) List)
• Turning power to OFF and then ON, or resetting the CPU module
Figure 3.2 Histories 1 to 16
+6
+7
+8
+9
+2
+0
+1
+3
+4
+5
b15 b8 b7 b0 to to
Un\G2786 to 2795
Un\G2936 to 2945
Un\G2796 to 2805
Month (01
H
to 12
H
)
Hour (00
H
to 23
H
)
Second (00
H
to 59
H
)
Year (00
H
to 99
H
), first 2 digits
Year (00
H
to 99
H
), last 2 digits
Day (01
H
to 31
H
)
Minute (00
H
to 59
H
)
Day of week (0
H
to 6
H
) *1
IN-side loopback station No.
Post-switching status
No. of connected modules
OUT-side loopback station No.
System area (use prohibited)
System area (use prohibited)
*1 0
H
: Sunday to 6
H
: Saturday
History 1
History 16
History 2
Time of
occurrence