Writing/Reading Of Device Data From Qcpu To Qcpu - Mitsubishi Electric MELSEC Q Series User Manual

4.3.3 Writing/reading of device data from QCPU to QCPU

The Universal model QCPU can write/read device data to/from another Universal model QCPU with the multiple CPU
high-speed transmission dedicated instruction shown on Table4.18.
Instruction
name
D.DDRD Reads other CPU device data into the host
DP.DDRD CPU devices.
D.DDWR Writes host CPU device data into other CPU
DP.DDWR devices.
*1: CPU module whose first five digits of serial number is 10012 or later
Figure 4.48 shows operation when CPU No.1 writes device data to CPU No.2 with the DP.DDWR instruction.
CPU No.1
Figure 4.48 Operation of writing device data from CPU No.1 to CPU No.2
Remark
For details of the multiple CPU high-speed transmission dedicated instruction, refer to the following manual.
QCPU Programming Manual(Common Instructions)
Table4.18 List of multiple CPU high-speed transmission dedicated instructions
Description
User program
DP.DDWR U3EI D0 D100 D200 M0
D0
D100
CHAPTER4 COMMUNICATIONS BETWEEN CPU MODULES
CPU module
Basic model QCPU
High Performance
Q00UCPU
model QCPU
Q01UCPU
Process CPU
Q02UCPU
CPU No.2
D0
Writing
D200
Universal model QCPU
*1
Q03UD(E)CPU
Q04UD(E)HCPU
Q06UD(E)HCPU
Q10UD(E)HCPU
Q13UD(E)HCPU
Q20UD(E)HCPU
Q26UD(E)HCPU
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1
2
3
*1
4
*1
5
6
7
8