Chapter 2 Specifications and System Configuration
2-16
2.2.5 AS200 Input/Output Terminals
Analog Input
Two analog signal input channels:
Item Voltage Input Current input
Analog Signal
-10 to +10 V -20 to 20 mA
Resolution
12-bit 11-bit
Input impedance
≧1 MΩ
250 Ω
Conversion time
3 ms / CH
Analog to digital
-2000 to 2000 -1000 to 1000
Digital value
SR168 (CH1) SR169 (CH2)
You can use the program to read the values in SR to obtain the corresponding A/D conversion value for the
channel.
Analog Output
Two analog signal output channels:
Item Voltage output Current output
Impedance
≥1 k Ω ≤500 Ω
Analog to digital
conversion range
-2000 to 2000
0 to 4000
Digital value
SR172 (CH1) SR173 (CH2)
You can use the instruction MOV to move the value to the SR to obtain the corresponding voltage output
value.