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1 OVERVIEW
(3) Comparison of Motion SFC performance specifications
Item Q170MCPU Q173DCPU/Q172DCPU
Code total
(Motion SFC chart + Operation control +
Transition)
543k bytes
Motion SFC program
capacity
Text total
(Operation control + Transition)
484k bytes
Number of Motion SFC programs 256 (No.0 to 255)
Motion SFC chart size/program Up to 64k bytes (Included Motion SFC chart comments)
Number of Motion SFC steps/program Up to 4094 steps
Number of selective branches/branch 255
Number of parallel branches/branch 255
Motion SFC program
Parallel branch nesting Up to 4 levels
Number of operation control programs
4096 with F(Once execution type) and FS(Scan execution type)
combined. (F/FS0 to F/FS4095)
Number of transition programs 4096(G0 to G4095)
Code size/program Up to approx. 64k bytes (32766 steps)
Number of blocks(line)/program Up to 8192 blocks (in the case of 4 steps(min)/blocks)
Number of characters/block Up to 128 (comment included)
Number of operand/block Up to 64 (operand: constants, word device, bit devices)
( ) nesting/block Up to 32 levels
Operation control program Calculation expression/bit conditional expression
Operation control
program (F/FS)
/
Transition program
(G)
Descriptive
expression
Transition program
Calculation expression/bit conditional expression/
comparison conditional expression
Number of multi execute programs Up to 256
Number of multi active steps Up to 256 steps/all programs
Normal task Execute in main cycle of Motion controller
Fixed cycle
Execute in fixed cycle
(0.44ms, 0.88ms, 1.77ms,
3.55ms, 7.11ms, 14.2ms)
Execute in fixed cycle
(0.88ms, 1.77ms, 3.55ms,
7.11ms, 14.2ms)
External interrupt
Execute when input ON is set among interrupt module QI60
(16 points).
Event task
(Execution
can be
masked.)
PLC interrupt Execute with interrupt instruction (D(P).GINT) from PLC.
Execute specification
Executed
task
NMI task
Execute when input ON is set among interrupt module QI60
(16 points).
Number of I/O points (X/Y) 8192 points
Number of real I/O points (PX/PY)
Total 256 points
(Internal I/F (Input 4 points,
Output 2 points) + I/O module)
256 points
Internal relays (M) 12288 points
Link relays (B) 8192 points
Annunciators (F) 2048 points
Special relays (SM) 2256 points
Data registers (D) 8192 points
Link registers (W) 8192 points
Special registers (SD) 2256 points
Motion registers (#) 12288 points
Coasting timers (FT) 1 point (888μs)
Number of devices
(Device In the Motion
CPU (area) only)
(Included the
positioning dedicated
device)
Multiple CPU area devices (U
\G)
Up to 14336 points usable
(Note)
(Note): Usable number of points changes according to the system settings.