1 - 7
1 OVERVIEW
(5) Comparison of PLC CPU area control and performance
Item Q170MCPU
Q173DCPU/Q172DCPU
PLC CPU area
Q03UDCPU or equivalent (20k steps)
QnUD(E)(H)CPU
Control method
Sequence program control method
I/O control mode
Refresh mode
Sequence control language
Relay symbol language (ladder), logic symbolic language (list),
MELSAP3 (SFC), MELSAP-L, Structured text (ST)
LD instruction
0.02
μ
s
0.0095 to 0.02
μ
s
MOV instruction
0.04
μ
s
0.019 to 0.04
μ
s
PC MIX value (instruction/
μ
s)
28
28 to 60
Processing speed
(sequence instruction)
Floating point addition
0.12
μ
s
0.057 to 0.12
μ
s
Total number of instructions
858
Operation (floating point operation) instruction
Yes
Character string processing instruction
Yes
PID instruction
Yes
Special function instruction (Trigonometric function,
square root, exponential operation, etc.)
Yes
Constant scan
0.5 to 2000ms (Setting available in 0.5ms unit.)
Program capacity
20k steps
30k to 260k steps
QCPU standard memory
8k bytes
CPU shared memory
Multiple CPU high speed
transmission area
32k bytes
No. of I/O device points (X/Y)
8192 points
No. of I/O points (X/Y)
512 points
4096 points
Internal relay (M)
8192 points
Latch relay (L)
8192 points
Link relay (B)
8192 points
Timer (T)
2048 points
Retentive timer (ST)
0 points
Counter (C)
1024 points
Data register (D)
12288 points
Link register (W)
8192 points
Annunciator (F)
2048 points
Edge relay (V)
2048 points
Link special relay (SB)
2048 points
Link special register (SW)
Points by default
(changeable by parameters)
2048 points
File register (R, ZR)
98304 points
98304 to 655360 points
Step relay (S)
8192 points
Index register/Standard devise register (Z)
20 points
Index register (Z)
(32-bit modification specification of ZR device)
Up to 10 points (Z0 to Z18)
(Index register (Z) is used in double words.)
Pointer (P)
4096 points
Interrupt pointer (I)
256 points
Special relay (SM)
2048 points
Special register (SD)
2048 points
Function input (FX)
16 points
Function output (FY)
16 points
Function register (FD)
5 points
Local device
Yes
Device initial values
Yes
Содержание Q170MCPU
Страница 1: ......
Страница 19: ...A 18 MEMO ...
Страница 81: ...2 54 2 SYSTEM CONFIGURATION MEMO ...
Страница 135: ...5 10 5 START UP PROCEDURES MEMO ...
Страница 171: ...7 6 7 POSITIONING DEDICATED SIGNALS MEMO ...
Страница 225: ...APP 54 APPENDICES MEMO ...
Страница 228: ......