PART 2: CX-Server PLC Tools
CHAPTER 5 – Data Trace/Time Chart Monitor Component OMRON
CX-Server PLC Tools_Page 52
CJ2 CPU Unit PLC Sampling Range
The CJ2 CPU Unit PLC can trace a maximum of 31 bits and 16 words and performs data tracing
using one of the following methods:
♦ Setting a timer interval. The trace can be performed in increments of 1ms during a 1-2550 ms
cycle. To sample data only once each cycle, set the interval to 0 ms.
♦ Including the TRSM (170) instruction in the PLC’s program. This instruction identifies the
points in program execution where specified data is to be stored in Trace Memory. The timer
interval must be set to ‘TRSM’.
Note: The buffer for Data Trace is 32K, 16K, or 8K words depending on model.
CV-series PLC Sampling Range
The CV-series PLC can trace a maximum of 12 bits and 3 words and performs data tracing using one of the
following methods:
♦ Setting a timer interval. The trace can be performed in increments of 5 ms during a 5-2550 ms cycle.
♦ Including the TRSM(170) instruction in the PLC’s program. This instruction identifies the points in program
execution where specified data is to be stored in Trace Memory. The timer interval must be set to ‘TRSM’.
C-series PLC Sampling Range
The C-series PLC can trace a maximum of 12 bits and 3 words and performs data tracing using one of the
following methods:
♦ Setting a timer interval. A Data Trace can be performed at regular, independent intervals by setting a timer
interval from the peripheral device.
♦ Including the TRSM(45) instruction in the PLC’s program. This instruction identifies the points in program
execution where specified data is to be stored in Trace Memory.
Note: Data Tracing cannot be performed from a Programming Console.
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