Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 51

2 SYSTEM CONFIGURATION
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(6) When all of the following conditions from a) to d) are met, use a
MELSECNET/H module whose serial number (first five digits) is "10042" or later.
(a) A multiple CPU system containing a Built-in Ethernet port QCPU is
configured.
(b) To the Ethernet port of the Built-in Ethernet port QCPU, GX Developer or
GOT is connected.
(c) From GX Developer or GOT, access is made to another station through a
MELSECNET/H module controlled by another CPU.
(d) The access target on another station is an A/QnA series CPU module.
MELSEC-Q
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