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2. PERFORMANCE
2. PERFORMANCE
2.1 Performance of the CPU Section
2.1.1 CPU section performance list
Item
Control method
I/O control method
Program language
Number of instructions
Processing speed
(sequence instruction, s/step)
Number of I/O points
Watchdog timer
Memory capacity
Program capacity
Internal relay (M)
Latch relay (L)
Step relay (S)
Link relay (B)
Timer (T)
Counter (C)
Data register (D)
This section provides the CPU section performance of the A1FXCPU.
Table 2.1 gives the CPU section performance list of the A1FXCPU.
Table 2.1 Performance List
Repeated operation (using stored program)
Refresh system
Language dedicated to sequence control
Relay symbol words, logic symbolic words, MELSAP(II)
Sequence instruction
(types)
Basic instruction
Application instruction :93
0.25
(points) 224 (X/Y20 to FF)
(ms) 10 to 2000
Built-in RAM
(k bytes)
Built-in E
2
Main sequence
(k steps)
Sub sequence
(points) 1000(M0 to 999)
1048(L1000 to
(points)
2047)
(points) 0
(points) 1024(B0 to 3FF)
256
100ms timer: Set time 0.1 to 3276.7s (T0 to 199)
(points)
10ms timer: Set time 0.01 to 327.67s (T200 to 255)
100ms retentive timer: Set time 0.1 to 3276.7s
256
Normal counter: Setting range 1 to 32767 (C0 to 255)
(points)
Interrupt program counter: Setting range 1 to 32767
(Counter used in interrupt program)
(points) 1024(D0 to 1023)
Performance
:26
:131
:64
2
PROM
:32 (E
PROM service life for writing: 100000 times)
:Max.14
:None
A total of 2048 points of M and
L are commonly used.
Must not be set.
2 - 1
MELSEC-A
Set in parameters
Set in parameters
Set in parameters
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