Specifications

Table Of Contents
2 - 2
2.1.2 List of SFC performance specifications
Item Q173CPU(N)/Q172CPU(N)
Code total
(SFC diagram + operation control +
transition)
287kB
Program capacity
Text total
(operation control + transition)
224kB
Number of SFC programs 256 (No.0 to 255)
SFC diagram size/program Maximum 64kB (including SFC diagram comments)
Number of SFC steps/program Maximum 4094 steps
Selective branches/branch 255
Parallel branches/branch 255
SFC program
Parallel branching nest Maximum 4 levels
Number of operation control programs
Total 4096 including F (one execution type)/
FS (scan execution type) (F/FS0 to F/FS4095)
Number of transition programs 4096 (G0 to G4095)
Code size/program Maximum approx. 64kB (32766 steps)
Number of blocks (lines)/program Maximum 8192 blocks (for 4 steps (minimum)/block)
Number of characters/block Maximum 128 characters (including comments)
Number of operators/block
Maximum 64 operators
(operators: constant, word device, bit device)
( ) nests/block Maximum 32 levels
Operation control
program
Formula, bit condition expressions
Operation control program
(F/FS), transition program
(G)
Description
method
Transition program
Formula, bit condition expression,
comparison condition expressions
Number of simultaneous execution
programs
Maximum 256 programs
Number of simultaneous active
programs
Maximum 256 steps/all programs
Normal task Execute at motion main cycle
Set period
Execute at each set period
(0.88ms, 1.77ms, 3.55ms, 7.11ms, 14.2ms)
External
interrupt
Of interrupt unit QI60's 16 input points, execute at set input ON
Event task
(masking
possible)
PLC
interrupt
Execute with interrupt command from PLC
Execution specifications
Execution
tasks
NMI task Of interrupt unit QI60's 16 input points, execute at set input ON
Input/output (X/Y)
specifications
8192 points
Number of actual input/
output (PX/PY) points
256 points
Number of internal relay (M) points
Number of latch relay (L) points
8192 points
Number of link relay (B) points 8192 points
Number of annunciator (F) points 2048 points
Number of special relay (M) points 256 points
Number of data register (D) points 8192 points
Number of link register (W) points 8192 points
Number of special register (D) points 256 points
Number of motion device (#) points 8192 points
Devices only in motion CPU
Number of free run timer (FT) points 1 point (888µs)