16 channels Analog Signal 4-20mA/0-5V to RS232/RS485 Isolated A-D Converter with MODBUS RTU
Model selection
ISOAD16 U(A) -
U/A:Vin/Iin Communication interface
U1:0-5V A1:0-1mA 485:Output is RS-485 interface
U2:0-10V A2:0-10mA 232:Output is RS-232 interface
U3:0-75mV A3:0-20mA
U4:0-2.5V A4:4-20mA
U5:0-±5V A5:0-±1mA
U6:0-±10V A6:0-±10mA
U7:0-±100mV A7:0-±20mA
U8:Customized A8:Customized
Note: User could choose RS-485 or RS-232 output by the interface wiring jumper at the back of the product.
1:ISOAD16 A4-485 Means 4-20ma signal output, output is RS485 interface
2:ISOAD16 A7-232 Means 0-5V signal output, output is RS232 interface
ISOAD 16 A-D Converter General Parameters:
(typical @ +25ºC,Vs @ 24VDC)
Input: Voltage / Current
Accuracy: @ +25ºC as table 1
Nonlinearity : @ +25ºC as table 1
Input imbalance: ±0.1 uA/ºC
Temperature Drift: ±15 ppm/ºC (±30 ppm/ºC, max)
Input load: 50Ω (4-20mA/0-20mA/0-±20mA current input)
100Ω (0-10mA/0-±10mA current input)
1KΩ (0-1mA/0-±1mA current input)
>1MΩ (voltage input)
Band width: -3 dB 10 Hz
Switching rate: 2.5-30 KHz Sps
Common mode restraint (CMR): 120 dB(1kΩ Source Imbalance @ 50/60 Hz)
Normal mode restraint (NMR): 60 dB (1kΩ Source Imbalance @ 50/60 Hz)
Input terminal protection: over-voltage/over current protection
Communications Protocol: RS-485 or RS-232 ASCII character protocol and standard MODBUS RTU communication protocol
Baud rate: 300,600,1200,2400,4800,9600,19200,38400bps,57600,115200bps , selectable
Address: 0~255 , selectable
Response Time:100 ms max
Operation Power Supply: +24VDC+-10%, internal anti-reverse & over-voltage protection
watt consumption: <8W
Operation Temperature: - 45 ~ +80ºC
Operation Humidity: 10 ~ 90% (non-condensing)
Storage Temperature: - 45 ~ +80ºC
Storage Humidity: 10 ~ 95% (non-condensing)
Isolation withstand voltage: 3KVDC between input and output, 1 minute, stray current 1mA
Output and power are common-ground.
Endure Impact Voltage: 3KVAC, 1.2/50us(peak value)
Appearance & dimension: 158*87.5*59mm
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