Specifications

Motion processing acceleration
Optimal system construction
compatible Motion Controller
Q173DCPU
Q173HCPU
Approx. 2 times faster!
6 axes
3 axes
Basic motion performance
(With 0.44ms operation cycle time)
In case of SV13
[Application Example]
Q173DCPU
Q173HCPU
Reduced to approx. 1/4!
Reduced to approx. 1/3!
2.34
Motion SFC processing time
Process time for D800L = D802L + D804L
11.75
Approximately double the basic motion performance
PLC program interrupt for multiple CPU synchronization
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SSCNET (Servo System Controller NETwork)
Substantial shortening of communication time when reading
and writing to the motion controller (Q173DCPU/Q172DCPU use).
Using the new PLC interrupt function synchronized with the motion operation cycle
(0.88ms), it is possible to achieve real-time processing of ladder programs.
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1/4 the Motion SFC processing time
A motor real-time value can be compared against
a specific point, and if this point is overrun, the PLC
can turn on an output signal. (Variation of comparison
processing does not have an influence on the scan
time of the ladder which is processed within 0.88ms.)
Multiple motion controllers can be started simultaneously.
1.
2.
Motion CPU communication time
Servo program read time
Large reduction in programming read/write time
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Q173DCPU
Q173HCPU
Performance
Processing
time
Processing
time
Motion-dedicated PLC instructions have become easier
to use.
Issue multiple instructions at the same time
Example: Execution of three motion-dedicated SVST instructions at the same time
Motion-dedicated PLC instruction
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Ladder program
DP.SVST H3E1 “J1” K0
DP.SVST H3E1 “J1” K0
DP.SVST H3E1 “J1” K0
M0RST
M0
Indirectly set data and execute instructions at the same time
Example: Indirect data setting of speed and position plus execution of
the motion-dedicated SVST instructions all at the same time
Ladder program
Servo program
DMOV K10000
U3E0
G12046
K500
U3E0
G12048
DP.SVST
H3E1 “J1”DP.SVST K0
M0
[K0: Real]
1 INC-1
Axis 1.U3E0 G12046 PLS
Speed U3E0 G12048 PLS/s
New algorithms result in high-speed and high-accuracy solutions
27 28
Up to 4 CPU modules can be freely selected in the multiple
CPU system (one PLC CPU required).
An optimum decentralized control system can be constructed
using multiple CPUs. Control is optimized by dispersing pro-
cessing across the multiple CPUs with the PLC handling gen-
eral machine control and the motion controller handling servo
control tasks. System expandability is accomplished with
ease due to the availability of over 100 different types of
MELSEC Q Series modules.
Up to 96 axis per system can be controlled using mul-
tiple motion CPUs (three Q173DCPU modules).
SSCNETIII based MR-J3 servo amplifiers deliver a high-
speed, high-accuracy solution.
Twice the motion operational performance
(0.44ms/6axis) as previously possible has resulted
in increased production rates.
Extremely accurate synchronous control and
speed/position control realized thanks to the
increased speed of the axial control cycle.
A motion control-specific processor (high-performance
64bitRISC) and a proprietary acceleration algorithm
ASIC improve hardware efficiency.
Using the MELSEC Q Series universal model CPU,
sequence processing is also accelerated. (Using the
Q06UDHCPU, the PLC basic instruction time is 9.5ns.)
Equipped with various motion control functions
such as multi-axis interpolation, speed control,
electronic cam and tracking control.
Reduce variations in response time by using
motion SFC programming.
Q06UDHCPU+Q173DCPU
Q06HCPU+Q173HCPU
3.5 times increase!
(Up to14k words)
14k words
4k words
Shared memory capacity
Capacity
The multiple high-speed
transmission cycle is the same
as the motion control cycle time.
Increased
controllability
Multiple CPU high-speed data transfer
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Motion controller PLC
GOT