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6.3 Communications Among CPU Modules By Dedicated
Instructions
6.3.1 Reading/writing device data from/to Motion CPU
The QCPU can read/write device data from/to the Motion CPU by executing the multiple CPU transmission dedicated
instructions and multiple CPU high-speed transmission dedicated instructions. (The Motion CPU cannot read/write
device data from/to other CPU modules including the Motion CPU.)
For details on these two instructions and their availabilities, refer to the manual for the Motion CPU used.
Ex.
S.DDWR instruction
The device data in the QCPU are written to the devices in the Motion CPU.
(1) Multiple CPU transmission dedicated instructions
The QCPU reads/writes device data from/to the Q172CPUN(-T), Q173CPUN(-T), Q172HCPU(-T), and
Q173HCPU(-T) by executing the multiple CPU transmission dedicated instructions listed below.
: Available, ×: Not available
Instruction Description
QCPU
Basic model QCPU,
High Performance
model QCPU,
Process CPU
Q00UCPU,
Q01UCPU,
Q02UCPU
Universal model
QCPU (except the
Q00UCPU,
Q01UCPU, and
Q02UCPU)
S.DDWR,
SP.DDWR
Writes device data in the host CPU module
to the devices in other CPU modules.
×
S.DDRD,
SP.DDRD
Loads device data in other CPU modules to
the devices in the host CPU module.
×
S.GINT,
SP.GINT
Requests startup of interrupt programs in
other CPU modules.
×
QCPU
Motion CPU
S.DDWR instruction
Device data are read.
DeviceDevice
Device data are
written.