Advertisement
1. Outline
This manual explains the specifications and names of each part of the A1S64AD type
analog/digital converter (hereinafter, A1S64AD) used in combination with the
MELSEC-A Series PLC CPU module (hereinafter PLC CPU).
2. Performance Specifications
The performance specifications of the A1S64AD are shown below.
Item
Analog input
Digital input
Input/output
characteristics *1
Maximum
resolution
General accuracy
*2
Maximum
conversion speed
Maximum
absolute input
No. of analog
input points
Isolation
specifications
Voltage: -10 to 0 to +10VDC
(input resistance 1MΩ)
Current: -20 to 0 to +20mA
(input resistance 250Ω)
16-bit coded binary
Analog input
+10V
+5V or +20mA
0V or 0mA
-5V or -20mA
-10V
Voltage input
Current input
Within ±1%
Specific
isolated area
Between input
terminal and
PLC power
supply
Between
channels
Specifications
-4096 to +4095 when set to 1/4000
-8192 to +8191 when set to 1/8000
-12288 to +12287 when set to 1/12000
Digital output value
(At 5V/20mA gain, 0V/90mA offset)
1/4000
+4000
+2000
0
-2000
-4000
1/4000
2.5mV
10μA
±40
20ms/channel
Voltage ±15V Current ±30mA
4 channels/module
Dielectric
Isolation
withstand
method
500V AC
Photocoupler
isolation
1 minute
Not isolated
Select with the input
terminals.
1/8000
+8000
+4000
0
-4000
-8000
1/8000
1.25mV
5μA
±80
Insulation
resistance
voltage
5MΩ or more
(measured with a
for
500V DC insulation
resistance tester)
-
1/12000
+12000
+ 6000
0
-6000
-12000
1/12000
0.83mV
3.33μA
±120
-
Advertisement
