Specifications

8. EX MPU and I/O Extension Units
© DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
8-6
Digital
Input
Digital
Input
Voltage output
Current output
There are two channels (CH0~CH1) that convert digital signals saved in D1116~D1117 and output analog signals on specified
output terminals.
Analog conversion
Channel Analog signals
Reactin
g
time
Input
terminals
Resolution
(bits)
Accuracy
Reg.
Conversion
range
5ms D
0
V+~D
0
V-
CH0
5ms D
0
I+~D
0
I-
8 D1116 0~255
5ms D
1
V+~D
1
V-
CH1
Voltage: 0V~+10V
Current: 0mA~+20mA
External load resistance:
2K~1MӨ(V), 0~500Ө(I)
5ms D
1
I+~D
1
I-
8
±1% at full
scale of
±10V
and 20mA
D1117 0~255
Example:
Use MOV command, Let
D1116 = 50, D1117 = 90,
The signal output will be:
CH0 (D0V+,D0V-)
≅ 1.953125V
CH1(D1V+, D1V-)
≅ 3.515625 V
CH0 (D0I+, D0I-)
≅ 3.90625mA
CH1(D1I+, D1I-)
≅ 7.03125mA
* Value 0-255 correspond to current signal 0-20mA so that value 128 corresponds to 10.039mA (20/255 * 128). Value 200
corresponds to 15.686 (20/255 * 200).