Mitsubishi Electric MELSEC Q Series User Manual page 69

When the multiple CPU system is configured using the High Performance model QCPU or the Process CPU as the CPU
No.1, only the following CPU modules can be used as the CPUs No.2 to No.4.
• High Performance model QCPU
• Process CPU
• Universal model QCPU (except Q00UCPU, Q01UCPU, Q02UCPU)
• PC CPU module
• C Controller module
Note that the multiple CPU system cannot be configured using the following combinations.
• Combination of the Universal model QCPU and the PC CPU module (PPC-CPU686(MS)-64, PPC-CPU686(MS)-
128)
• Combination of the PC CPU module and the C Controller module
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