Mitsubishi Electronics Q173CPU(N) ユーザーズマニュアル
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1 OVERVIEW
1.6.2 I/O No. of PLC CPU and Q173CPU(N)/Q172CPU(N)
In the Multiple CPU system, I/O No. is assigned to the PLC CPU/Motion CPU to
enable communication between the PLC CPU and Motion CPU using the following
instructions:
• The Multiple CPU dedicated instructions
• The Motion CPU dedicated instructions
• The Multiple CPU communication dedicated instructions
The I/O No. of the PLC CPU/Motion CPU are fixed based on the installed slots and
cannot be changed.
The table below lists the I/O No. of the PLC CPU/Motion CPU installed in the CPU
base unit of the Multiple CPU system.
enable communication between the PLC CPU and Motion CPU using the following
instructions:
• The Multiple CPU dedicated instructions
• The Motion CPU dedicated instructions
• The Multiple CPU communication dedicated instructions
The I/O No. of the PLC CPU/Motion CPU are fixed based on the installed slots and
cannot be changed.
The table below lists the I/O No. of the PLC CPU/Motion CPU installed in the CPU
base unit of the Multiple CPU system.
CPU installation position
QCPU slot
Slot 0
Slot 1
Slot 2
Head I/O number
3E00H
3E10H
3E20H
3E30H
The I/O No. of the PLC CPU/Motion CPU are used in the following cases:
• When writing data to the shared CPU memory of the self CPU using the S. TO
• When writing data to the shared CPU memory of the self CPU using the S. TO
instruction.
• When reading data from the shared CPU memory of the other CPU using the FROM
instruction.
• When reading data from the shared CPU memory of the other CPU using an
intelligent function module device (U \G )
• When reading device data directly from the Motion CPU from the PLC CPU using
the "S(P). DDRD" instruction.
• When writing device data directly to the Motion CPU from the PLC CPU using the
"S(P).DDWR" instruction.
REMARK
• Refer to Chapter "3. COMMUNICATION BETWEEN THE PLC CPU AND THE
MOTION CPU IN THE MULTIPLE CPU SYSTEM" for communication between
the PLC CPU and the Motion CPU.
the PLC CPU and the Motion CPU.