30
TI 34M6A01-01E
P
P
C
C
L
L
Specifications
Number of sampling points: 16 relays / 4
registers.
Sampling timing:
•
Whenever a TRC instruction is carried out
•
At specified intervals (10 to 2000 ms)
•
At the end of every 1 to 1000 scan
intervals
Number of traces: 1024
Trigger condition:
•
Specified relay
•
Data matching for the specified device
z
You can trace device values while running a program.
z
You can also record device values before the trigger condition is established.
z
You can use sampling traces not only while debugging but also during operation for troubleshooting
and failure analyses (no other manufacturer's PLC provides this function
).
z
Use of the sampling trace function does not affect the scan time.
z
Sampling traces are very useful for capturing phenomena that seldom occur, such as once a week or
month.
Sampling Traces
* The sampling trace function is available in the SP25 and SP35.
Making Sampling Trace Settings
By configuring the trigger condition with the ladder program, you
can attain traces of the values of the desired devices when
complicated conditions including status transitions are met.
Sampling traces can be attained without affecting the scan time of
the ladder program.
Æ
Non-conformities occurring at irregular times can be
detected.
z
There are two setting methods:
•
Add the setting in the configuration of the user program.
•
Make settings at any time you want during operation.
z
Display
Sampling traces can be displayed in a time chart format
together with the relay statuses and register values
sampled.
z
Settings in configuration prior to runtime
You can make sampling trace settings previously in the
configuration so that sampling traces are obtained during
normal operation.
z
Settings on demand
You can make sampling trace settings at any time you
want.
z
Storage and retrieval
The obtained sampling traces can be saved to a file and the
saved file can be opened.
