Mitsubishi Electric MELSEC Q Series User Manual page 33

(c) Timing of data send/receive between the CPU modules can be checked
The sampling trace function of the Universal model QCPU enables to check the data send/receive timing with
the Motion controller.
(Timing of data send/receive can be checked between the Universal model QCPUs.)
Using the sampling trace function facilitates to check the data send/receive timing between CPU modules, and
reduces the debug time of the multiple CPU system.
Sampling trace result display by GX Developer
The sampling trace of the other CPU module data can be executed, specifying the following CPU modules.
• Universal model QCPU (except Q00UCPU, Q01UCPU, Q02UCPU )
• Motion CPU (Q172DCPU, Q173DCPU )
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Figure 1.7 Sampling trace at the time of configuring multiple CPU system