Features - Mitsubishi Electric A1S66ADA User Manual

1 OVERVIEW

1.1 Features

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(1) High-speed D/A conversion and A/D conversion are possible.
The A1S66ADA can perform conversion at high speeds, as shown below:
240 μs/2 CH or below (for D/A conversion)
400 μs/4 CH or below (for A/D conversion)
(2) High-speed sequence scan is possible
Because the reading and writing of digital and analog values is performed using
I/O signals (X/Y) instead of the buffer memory, which conventionally has been
used, the A1S66DA can reduce the sequence scan time.
Buffer memory method
TO
FROM
Item
TO
Command
FROM
Total
I/O signal (X/Y) format
Item
MOV
(D/A conversion)
Command
MOV
(A/D conversion)
Total
(3) D/A conversion and A/D conversion may be performed with one
module.
An A1S66ADA module can perform D/A conversion at two channels and A/D
conversion at four channels.
H0 D0 K5 K1
H0 K1 D1 K1
Processing time
A2USHCPU
212.1 μs
183.5 μs
395.6 μs
MOV D0 K3Y0
MOV K3X0 D100
Processing time
A2USHCPU
0.55 μs
0.55 μs
1.10 μs
MELSEC-A
The digital value
to undergo D/A
conversion is written.
The digital value that
has been undergone
A/D conversion is read.
Q2ASHCPU
162.0 μs
160.0 μs
322.0 μs
The digital value
to undergo D/A
conversion is written.
The digital value that
has been undergone
A/D conversion is read.
Q2ASHCPU
0.30 μs
0.30 μs
0.60 μs
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