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2. PERFORMANCE SPECIFICATIONS
2.1 Performance Specifications
2.1.1 A1SCPUC24-R2 Module Performance Specifications
The memory capacity, device performances and other specifications of
A1SCPUC24-R2 module are provided below.
Item
Control system
I/O control method
Programming language
Processing speed
(sequence instruction)
Number of I/O points
Watchdog timer (WDT)
Memory capacity *1 (built-in
RAM)
Main sequence Max. 8 k steps
Program
capacity
Sub sequence
Self-diagnostics functions
Operation mode at the time of
error
Start method at the time of
RUN
STOP → RUN output mode
Clock function
Allowable momentary power
interruption time
Current consumption (5 V DC) 0.56 A
Weight
Standard
*1
The maximum total memory that can be used for parameters, T/C set values,
program capacity, file registers, number of comments, sampling trace, and
status latch is 32k/64k bytes.
The memory capacity is fixed. No expansion memory is available.
Section 4.1.7 shows how to calculate the memory capacity.
Table 2.1 Performance specifications
Type
Repeated operation (using stored program)
Refresh mode/Direct mode selectable
Language dedicated to sequence control. Relay symbol type
and logic symbolic language, MELSAP-II (SFC) (for A1SCPU)
: 1.0 to 2.3 µs/step
Direct
: 1.0 µs/step
Refresh
256 points (32 points are used for the computer link function)
10 to 2000 ms
32k bytes
None
Watchdog error monitor, Memory error detection, CPU error
detection, I/O error detection, Battery error detection, etc.
STOP/CONTINUE
Initial start
(Automatic restart by turning on the "RUN" switch of the CPU
after power-ON/recovery from power failure)
Output data at time of STOP restored/data output after
operation execution
Year, month, day, hour, minute, second (Automatically
recognizes leap years.)
−2.3 to +4.4 s (TYP. +1.8 s)/d at 0 °C
Accuracy
−1.1 to +4.4 s (TYP. +2.2 s)/d at 25 °C
−9.6 to +2.7 s (TYP. -2.4 s)/d at 55 °C
Depends on power supply module
0.41 kg
UL/CSA
A1SCPUC24-R2
3
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