Yaskawa MP900 Series Machine Controller New Ladder Editor - Manual (Page 220)

2.2 Trace Functions
2-27
2
„ Parameter
„ Failure Occurrence Data Readout
Failure occurrence data readout is described in Figure 2.6. The readout will always be
started from the most recent record.
Fig. 2.6 Failure Occurrence Data Readout
I/O
Definition
Parameter
Name
I/O
Designation
Setting
Input Execute B-VAL Failure trace readout instruction
Reset B-VAL Failure trace buffer reset instruction
Type I-REG Type of data read
1: Occurrence data
2: Restoration data
Rec-Size I-REG Number of read record
Occurrence data: 1 to 64 Restoration data: 450
Dat-Adr Address in-
put Head register address for reading (address of MW or
DW)
Output Complete B-VAL Completion of failure trace read
Error B-VAL Occurrence of error
Status I-REG Failure trace read execution status
Rec-Size I-REG Number of records read
Rec-Len I-REG Length of record read
Table 2.12 Failure Trace Reading Execution Status (STATUS)
Name Bit No. Remarks
System reserved bit0 to bit7
No trace definition bit8 The function will not be executed.
Designated type No. error bit9 The function will not be executed.
System reserved bit10
Error in the designated
number of records bit11 The function will not be executed.
Data storage error bit12 The function will not be executed.
System reserved bit13
System reserved bit14
System reserved bit15 The function will not be executed.
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