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Performance Specifications Of Cpu Modules - Mitsubishi Electric MELSEC-Q Series User Manual

Qcpu a mode, cpu module.
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2.2

Performance Specifications of CPU Modules

This section gives the performance specifications of the CPU modules.
Item
Control system
I/O control method
Programming language
Processing speed
(sequence instruction)
Constant scan
Built-in RAM
Memory
When using memory
capacity
card (RAM)
Built-in ROM
Main sequence
program
Program
capacity
Sub sequence
program
I/O device points
I/O points
Output mode switching at
STOP  RUN
Self-diagnostics functions
Operation mode at error
occurrence
Starting method at RUN
Performance List
Q02CPU-A
Stored program cyclic operation
Language dedicated to sequence control
Relay symbol type and logic symbolic
language, MELSAP-II (SFC)
0.079 µs/
LD
steps
0.474 µs/
MOV
steps
(can be specified in 10ms increments)
Max. 28k steps
Unavailable
8192 points (X/Y0 to 1FFF)
(Total points available on programs
including remote I/O)
4096 points (X/Y0 to FFF)
(Points can be controlled on basic and
expansion base modules)
Re-output of operation at time of STOP
(default)/output after operation execution
Watchdog error monitor (watchdog timer
fixed to 200ms)
Memory, CPU, I/O, battery and other error
detection
STOP/CONTINUE selection
Initial start
(Automatic restart made when "RUN"
switch of CPU is moved to ON position at
power-on or at power restoration after
power failure)
5
Type
Q02HCPU-A Q06HCPU-A
Refresh mode
0.034 µs/steps
0.204 µs/steps
10 to 190 ms
144k bytes
448k bytes
144k bytes
Max. 30k
steps
Max. 30k
steps
Remarks
Partial direct I/O
possible
depend-ing on
instruction
Set to special
register D9020
Parameter
setting
Parameter
setting
Parameter
setting

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