Yaskawa Ladder Works Programming Manual - Manual (Page 186)

9.5 Failure Trace Read Function (FTRC-RD)
9-11
Table 9.4 Bit Configuration
No. Bit Configuration of ① Bit Configuration of ②
7 Defined flag (1 = defined, 0 = undefined) System Reserve ( = 0)
6
5
System Reserve ( = 0)
4 0 = NO contact designation,
1 = NC contact designation
Data Type
Bit = 0, Integer = 1,
Double-length integer = 2,
Real Number = 3
3
2
1
0
Type of variable
S = 0,
I = 1,
O = 2,
M = 3 Bit Address 0～F
■ Number of Records
The Number of Records is the following.
Minimum number of records 0 (no failure restoration data)
Maximum number of records 64
9.5.3 Failure Restoration Data
Failure restoration data is described in figure 9.7. The number (amount) of restoration data is
stored in SW00093 (ring counter for 1 to 9999).
Failure Restoration Trace Data
Number of
read records
Old
New
User Register
n
Record No. of
read record
Head address of the register
into which data is read
Readout
Old
New
Figure 9.7 Failure Restoration Data
9.5.4 Readout Data Configuration (Failure Restoration Data)
Data configuration is described in figure 9.8.
Dat - Adr→8 words Record 1
Record 2
Record n
・
・
・
・
8 words
8 words
Trace data
Time of restoration-old
Time of restoration-new
Figure 9.8 Data Configuration