Yaskawa Ladder Works Programming Manual - Manual (Page 185)

9.5 Failure Trace Read Function (FTRC-RD)
9-10
9.5.1 Failure Occurrence Data Readout
Failure occurrence data readout is described in figure 9.3. The readout will always be started
from the most recent record.
User Register
Readout
Failure Occurrence Trace Memory
Number of
read records
Old
New
Head address of the register
into which data is read
Most recent record
Figure 9.3 Failure Occurrence Data Readout
9.5.2 Readout Data Configuration (Failure Occurrence Data)
■ Data Configuration
Dat - Adr→1～5 words Record 1
Record 2
Record n
・
・
・
・
5 words
5 words
Max. 320 words
Trace data
Time of occurrence-old
Time of occurrence-new
Figure 9.4 Data Configuration
■ Record Configuration
Register Designation No.
2 words
1 word
1 word
1 word Year and month of occurrence
Day and hour of occurrence
Minutes and seconds of occurrence
1 record (5 words)
Figure 9.5 Record Configuration
■ Structure of Register Designation No. (2 words)
Contain the failure detection relay information.
⇒
1 word
1 word
F 8 7 0
Data address
② ①
07D0
83 01
(Example) MB020001 (hexadecimal expression)
Figure 9.6 Structure of Register Designation No.