Specifications

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Appendix 4 Comparison between A173UHCPU/A172SHCPUN
The following shows the comparison between Q173CPU(N)/Q172CPU(N) and A173UHCPU/A172SHCPUN.
Item Q173CPU(N) Q172CPU(N) A173UHCPU A172SHCPUN
Number of control axes 32-axis 8-axis 32-axis 8-axis
SV13
1 to 8-axis: 0.88ms
9 to 16-axis: 1.77ms
17 to 32-axis: 3.55ms
(Settable by parameter)
1 to 8-axis: 0.88ms
(Settable by parameter)
1 to 20-axis: 3.55ms
21 to 32-axis: 7.11ms
1 to 8-axis: 3.55ms
Control operation
cycle
SV22
1 to 4-axis: 0.88ms
5 to 12-axis: 1.77ms
13 to 24-axis: 3.55ms
25 to 32-axis: 7.11ms
(Settable by parameter)
1 to 4-axis: 0.88ms
5 to 8-axis: 1.77ms
(Settable by parameter)
1 to 12-axis: 3.55ms
13 to 24-axis: 7.11ms
25 to 32-axis: 14.22ms
1 to 8-axis: 3.55ms
Program capacity At step of 14K At step of 13K
Number of positioning points
32,000 points/axis
(Indirect setting possible)
Program tool PC/AT compatible machine
PC/AT PC9800 Series compatible machine
(A30TU, A31TU)
Peripheral unit I/F
USB (12Mbps), RS-232C (Max. 115Kbps),
SSCNET (5.6Mbps)
RS-422 (9600bps)/SSCNET (5.6Mbps)
Zero point return function
Contact dog type, count type,
data set type 1, data set type 2
Contact dog type, count type, data set type 1
Manual pulse generator operation function 3 units are connectable. 1 unit is connectable.
Synchronous encoder operation function
12 units are
connectable.
8 units are
connectable.
4 units are
connectable.
1 unit is connectable.
–
ON/OFF setting point of each axis can be set
up to 10 points.
(Number of output points: 8 points/axis)
Limit switch output function
Number of output points: 32 points, watch dog data: motion control data/word device
Number of SSCNET I/Fs 5CH

*1 2CH 4CH 2CH
Number of motion slots
64 slots (max.)
(Number of stages extended for Q Series:
7 stages, max.)
8 slots 2 slots
Motion control
Pulse generator, synchronous encoder
External signal input unit
Number of units attached
It is possible to use 4 Q172LX units.
It is possible to use 6 Q172EX units.
It is possible to use 4 Q173PX units.
It is possible to use 1 Q172LX units.
It is possible to use 4 Q172EX units.
It is possible to use 3 Q173PX units.
It is possible to use 4
A172SENC units.
It is possible to use 1
A172SENC units.
Normal task Executed at motion main cycle.
Constant
cycle
Executed at every constant cycle (0.88ms,
1.77ms, 3.55ms, 7.11ms and 14.22ms).
Executed at every constant cycle
(1.77ms, 3.55ms, 7.11ms and 14.22ms).
External
interrupt
Executed when the setting inputs of those (16
points) input to the external interrupt unit QI60
are turned ON.
Executed when the setting inputs of those (16
points) input to the external interrupt unit AI61
are turned ON.
Event task
(maskable)
PLC
interrupt
Executed at interrupt from PLC. Executed at interrupt (1 point) from PLC.
Execution
specifica-
tion
Execu-
tion task
NMI task
Executed when the setting inputs of those (16
points) input to the external interrupt unit QI60
are turned ON.
Executed when the setting inputs of those (16
points) input to the external interrupt unit AI61
are turned ON.
Number of input/output (X/Y) points 8192 points 2048 points
Number of actual input/output (PX/PY) points 256 points
Number of internal relay (M) points
Number of latch relays (L) points
8,192 points: Total for M and L
8,192 points: Total for
M and L (S)
2,048 points: Total for
M and L (S)
Number of link relay (B) points 8192 points 1024 points
Number of annunciator (F) points 2048 points 256 points
Number of timer contact (TT) points – 2048 points 256 points
Number of timer coil (TC) points – 2048 points 256 points
Number of counter contact (CT)
points
– 1024 points 256 points
Number of counter coil (CC) points – 1024 points 256 points
Number of special relay (M) points 256 points 256 points 256 points
Number of data register (D) points 8192 points 8192 points 1024 points
Number of link register (W) points 8192 points 8192 points 1024 points
Number of current timer value (T)
points
– 2048 points 256 points
Number of current counter value (C)
points
– 1024 points 256 points
Number of special register (D) points 256 points 256 points
Number of motion device (#) points 8192 points 8192 points
Motion SFC function
Device
Only for
inside of
motion
CPU
Number of coast timer (FT) points 1 point (888µs) 1 point (888µs)
*1 The wire dividing unit (Q173DV) or branch cable (Q173J2B
∆
CBL

M/Q173HB
∆
CBL

M) is used.