Mitsubishi Electric MELSEC-A Series Manual page 108

2
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK)
Instruction Name
Other
ZNRD station word
device read
Other
ZNWR station word
device write
*1 CPU modules of the following version or later when the target station is the A2UCPU(S1), A3UCPU, A4UCPU, or
A2USCPU(S1)
• A2UCPU(S1), A3UCPU, A4UCPU: Version AY (manufactured in July 1995) or later
• A2USCPU(S1): Version CP (manufactured in July 1995) or later
2
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Execution
station
QCPU
[A-compatible instruction]
Reads CPU device data on target stations of target network No.
CPU Network module
ZNRD
Word device
2594
[A-compatible instruction]
Writes data to CPU device on target station of target network
No.
Network module
CPU
ZNWR
Description
Network module
Channel 1
Word device
* Fixed
Network module
Word device
Channel 2
* Fixed
: Can be used, × : Cannot be used
Target
station
QnA/ AnU/
QCPU QnA- AnUS(H)
SCPU CPU
CPU
AnACPU
AnNCPU
2594
CPU
AnACPU
AnNCPU
361
*1
*1