Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 303)

5.10 System Function Instructions
5.10.4 Read Data Trace (DTRC-RD)
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5.10.4 Read Data Trace (DTRC-RD)
( 1 ) Operation
The DTRC-RD instruction reads trace data in the Machine Controller and stores it in registers. The data in the trace
memory can be read by specifying the first record number and the number of records. You can designate and read only
the required items in a record.
„ Structure of Read Data
The length of a record can be from 1 to 32 words, depending on the selected data items. The maximum number of
records can be from 1,015 to 32,511 depending on the record length.
Read data
First address
Specified read
items read.
Data trace memory
Record No.
n
Requested number
of records
Old
New
Number of first
record to read
M or D registers
0
Record 1 Item 1
:
:
Item 16
Record 2
:
Record n
Old
32,512 words max.
New
1 to 32 words
1 to 32 words
1 to 32 words
First address