Specifications

4- 7
4. REPLACEMENT FROM A-MOTION TO QN-MOTION
3. DIFFERENCES BETWEEN Q173CPUN/Q172CPUN AND
A173UHCPU/A172SHCPUN/A171SHCPUN
3.1 Differences between Q173CPUN/Q172CPUN and A173UHCPU/A172SHCPUN/A171SHCPUN
3.1.1 Differences list
Item Q17nCPUN
A17nSHCPUN/A173UHCPU
Points of replacement
A171SH A172SH A173UH
Peripheral I/F • USB/RS-232/SSCNET RS422/SSCNET
Communicate with peripheral
equipment using appropriate I/Fs.
Battery
Built-in rechargeable battery
(If a power failure lasts for one
month or longer, add an
external battery A6BAT/
MR-BAT.)
A6BAT is built in. (3.6 V)
Forced stop input
Specify a bit device (PX, M) with
a parameter (Forced stop
terminals of the servo amplifier
can be used).
Use EMG terminals of the main base
unit.
Always use a forced stop input cable
(sold separately). Otherwise, the
forced stop cannot be canceled.
I/O points 8192 points 2048 points 8192 points -
Device
Internal relays (M)
8192 points in total of M and L
2048 points in total
(shared use of M, L, S)
8192 points
in total
(shared use
of M, L, S)
The devices on the left are shared in
A-Motion but not shared in
Q-Motion.
Configure the automatic refresh
setting if necessary.
For details, refer to Chapter 5.
Latch relays (L)
Step relays (S) -
Link relays (B) 8192 points 1024 points 8192 points
Timers (T) - 256 points 2048 points
Counters (C) - 256 points 2048 points
Data registers (D) 8192 points 1024 points 8192 points
Link registers (W) 8192 points 1024 points 8192 points
Annunciators (F) 2048 points 256 points 2048 points
File registers (R) - Up to 8192 points
Special relays (M) 256 points 256 points
Special registers (D) 256 points 256 points
Coasting timers
(FT)
1 point (888μs) -
Motion registers (#) 8192 points -
8192 points
(Motion SFC OS only)
Multiple CPU shared
devices (U□\G)
Up to 4096 points - -
Motion dedicated
sequence instruction
S(P).SFCS, S(P).SVST,
S(P).CHGA, S(P).CHGV,
S(P).CHGT, S(P).DDRD,
S(P).DDWD, S(P).GINT
CHGT, CHGV, CHGA Replace motion dedicated PLC
instructions with S(P).***
instructions.
(Refer to Chapter 3 of SV13/22
Programming Manual (Motion SFC)
[type Q173D(S)/Q172D(S)].)
SVST
(Non Motion SFC OS only)
-
SFCS, ITP
(Motion SFC OS only)
Motion
module
SV13
Q172LX, Q172EX-S2
(Note-1)
,
Q173PX
A171SENC, A172SENC
Use motion modules Q172LX,
Q172EX-S2, and Q173PX in the
system using
Q173CPUN/Q172CPUN.
SV22
Installation
position
Motion modules can be installed
in a free slot of CPU.
Motion modules can be installed in
motion I/O slots only.
-
(Note-1)
: Can be installed to main base units only.