Mitsubishi MELSEC-Q/L User Manual

672
CHAPTER 9 MULTIPLE CPU DEDICATED
INSTRUCTION
9.1 Writing to the CPU Shared Memory of Host CPU
The S.TO or TO instruction is used to write to the CPU shared memory of the host station in the multiple CPU system.
The following table indicates the usability of the S.TO and TO instructions.
(1) Operation of S.TO instruction
The S.TO instruction can write data to the CPU shared memory of the host CPU module.
The following figure shows the processing performed when the S.TO instruction is executed in CPU No. 1.
(2) Operation of the TO instruction
The TO instruction can write device memory data to the following memories.
• CPU shared memory of host CPU module
• Buffer memory of intelligent function module
CPU Module S.TO Instruction TO Instruction
Basic model QCPU
Q00JCPU Unusable Unusable
Q00CPU, Q01CPU Usable Usable
High Performance model QCPU
Q02CPU, Q02HCPU,
Q06HCPU, Q12HCPU,
Q25HCPU
Usable Unusable
Process CPU
Q02PHCPU, Q06PHCPU,
Q12PHCPU, Q25PHCPU
Usable Unusable
Redundant CPU Q12PRHCPU, Q25PRHCPU Unusable Unusable
Universal model QCPU
Q00UJCPU Unusable Unusable
Q00UCPU, Q01UCPU, Q02UCPU,
Q03UDCPU, Q04UDHCPU,
Q06UDHCPU, Q10UDHCPU,
Q13UDHCPU, Q20UDHCPU,
Q26UDHCPU, Q03UDECPU,
Q04UDEHCPU, Q06UDEHCPU,
Q10UDEHCPU, Q13UDEHCPU,
Q20UDEHCPU, Q26UDEHCPU,
Q50UDEHCPU, Q100UDEHCPU
Usable Usable
LCPU
L02CPU, L26CPU-BT, L02CPU-P,
L26CPU-PBT
Unusable Unusable
[ SP.TO H3E0 n2 n3 n4 D ]
Device
memory
CPU
shared
memory
Device
memory
Buffer
memory
CPU
shared
memory
CPU No. 1
CPU No. 2
Intelligent
function module
Data
write
Designation of CPU shared memory in CPU No. 1

Mitsubishi MELSEC-Q/L Specifications

General

Brand	Mitsubishi
Model	MELSEC-Q/L
Category	Controller
Language	English