Transient Transmission Error Log - Mitsubishi Electric MELSEC Q Series Reference Manual

3.3.2

Transient transmission error log

Details of Transient transmission error log are shown below.
(1) Transient transmission error count (Un\G2592)
The cumulative number of errors saved in the error log blocks is stored.
(2) Error log pointer (Un\G2593)
Error log block No. of the latest error log is stored.
• 0: No error (No error log data)
• 1 or more: Error log block No. of the latest error log
When the pointer value is "16", the latest error log is registered to Error log block 16.
Ex.
The 17th and subsequent errors will be registered to the error log from Error log block 1 again.
(3) Error log blocks 1 to 16 (Un\G2594 to 2753)
Transient transmission error logs are stored.
Error log blocks 1 to 16 are composed of data in the same arrangement.
(a) Error code
An error code is stored. (
(b) Target station network No./Target station No.
Network No. and station No. of an error-detected station are stored.
(c) Own station's network No./Own station's station No.
Network No. and station No. of the own station are stored.
(d) Time of error occurrence
Time of transient transmission error is stored as a BCD code.
Error log block 1
Un\G2594 to 2603
Error log block 2
Un\G2604 to 2613
Error log block 16
Un\G2744 to 2753
Page 511, Section 10.2)
b15 to
+0 Error code
+1 System area (use prohibited)
+2 Target station network No.
+3 Target station No.
+4 Own station's network No.
+5 Own station's station No.
+6 Month (01 to 12
H
+7 Hour (00 to 23
H
+8 Second (00 to 59
H
+9 Year (00 to 99 ), first 2 digits
H H
CHAPTER 3 SPECIFICATIONS
b8 b7 to
) Year (00 to 99 ), last 2 digits
H H H
) Day (01 to 31 )
H H H
) Minute (00 to 59 )
H H H
Day of week (0 to 6
H H
*1 0 : Sunday to 6 : Saturday
H H
b0
Time of error
occurrence
*1
)
55
3