Specifications

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2. REPLACEMENT PROPOSAL FROM A-MOTION TO QDS-MOTION
6.2.2 Communication data device between PLC CPU and Motion CPU
(1) Shared devices between PLC CPU (SCPU) and Motion CPU (PCPU)
• A-Motion
Example) Since both SCPU and PCPU share the same devices, PCPU (SCPU) can use the data
that SCPU (PCPU) stored in the devices for some processing.
• QDS-Motion
Example)
Since a PLC CPU and a Motion CPU operate as different CPUs, some settings
(assignment to multiple CPU shared device/automatic refresh setting) are required to
share the same devices.
By configuring these settings, both CPUs can share the same data for some processing.
SCPU PCPU
A-Motion
system
SCPU and PCPU share the same devices and data in the devices.
Shared
device
P
C
P
U
S
C
P
U
QDS-Motion
PLC CPU Motion CPU
Automatic
refresh area
Device
memory
Multiple CPU
shared
device
Device
memory
Automatic
refresh area
Multiple CPU
shared device