Specifications

Table Of Contents
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4.4 Motion SFC dedicated devices
The motion CPU (PCPU) dedicated devices include the motion registers (#0 to #8191)
and coast timer (FT).
These devices can be used in the operation control (F/FS) program or transition (G)
program.
It is not possible to directly access these devices from the PLC. When the devices are
used at the PLC side, therefore, substitute them for PLC devices before accessing.
4.4.1 Motion registers (#0 to #8191)
Motion devices Item Q173CPU(N)/Q172CPU(N)
Number of points 8192 points (#0 to #8191)
Data size 16 bits/point
Latch
Latched except for SFC dedicated devices.
(Cleared at all points due to latch clear
operation.)
Applicable task Normal , event , NMI
Motion register (#)
Access READ/WRITE is executable at all ranges.
(1) List of motion registers
These motion registers are common to all OSs.
Device No. Division of application Remarks
#0
to
User devices
(8,000 points)
Cleared by latch clear.
#8000
to
SFC dedicated devices
(66 points)
Cleared only when the power supply is
turned ON and when the operation is reset
using the key.
#8066
to
#8191
Servo monitor devices
(126 points)
Not cleared.
POINT
Note that the motion register (#) cannot be set to be used as an indirect
designation device for the mechanism program.