Isolated 4-20mA/0-10mA/0-5V/0-10V/0-2.5V/ to RS485/232 Modbus RTU I/O Module

• Customization: Available
• After-sales Service: 2 Years
• Warranty: 2 Years
• Model NO.: ISO 4021 Series
• Output: RS232,RS485
• Power Supply: 8-50VDC
• Accuracy: 0.05%
• Band Width: -3 dB 10 Hz
• Switching Rate: 10 Sps
• Common Mode Restraint: 120 dB
• Normal Mode Restraint: 60 dB
• Input Port Protection: Over-Voltage/Over Current Protection
• Response Time: 100 Ms Max
• Transport Package: 35mm DIN Rail-Mounted Type
• Specification: ISO9001: 2008, CE, ROHS
• Trademark: SUNYUAN SZ
• Origin: Shenzhen
• Production Capacity: 50000PCS/Year

Product Description

ISO 4021 Series Isolated 4-20mA/0-10mA/0-5V/0-10V/0-2.5V/ to RS485/232 Modbus RTU I/O Module

Model selection:
ISO 4021  U(A) -  
 
U/A: Input voltage or current signal                   Output: communication interface
U1:0-5V           A1:0-1mA                         232/485: Output is RS-232 or RS-485 interface
U2:0-10V          A2:0-10mA                
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
         
 
Remark:When the communication interface is RS232, it should connect with RXD and TXD port; when the communication interface is RS485, it should connect with DATA+ and DATA- Port. RS232 and RS485 can't work at the same time.
E.g.
1: ISO 4021 A4-232/485   Means 4-20ma signal input, output is RS232 or RS485
2: ISO 4021 U1-232/485   Means 0-5V signal input, output is RS232 or RS485
3: ISO 4021 U5-232/485   Means 0-±5V signal input, output is RS485 or RS232
 
 
ISO 4021 A-D Converter General Parameters:
(typical @ +25ºC,Vs is 24VDC)
Input:              Voltage / Current
Accuracy:           0.05%
Input imbalance:     ±0.1 uA/ºC
Temperature Drift:  ±15 ppm/ºC (±30 ppm/ºC, max)
Input Resistance:   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:     10 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 Port protection:           over-voltage/over current protection
Communications:   protocol  RS-485 or RS-232   ASCII protocol and MODBUS RTU communication protocol
                  Baud rate(300,600,1200,2400,4800,9600,19200,38400bps)software configuration
address(00H~FFH)software configuration
Response Time:100 ms max
Operation Power Supply:    +8 ~ 50 VDC wide power supply range, internal anti-reverse & over-voltage protection               
watt consumption:    < 1W
Operation Temperature:    - 45 ~ +80ºC         
Operation Humidity:   10 ~ 90% (non-condensing)
Storage Temperature:   - 45 ~ +80ºC               
Storage Humidity:   10 ~ 95% (non-condensing)                                     
Isolation withstand voltage:   between input and output:  3KVDC,1 minute,stray current 1mA
                           Output and power are common-ground.
Endure Impact Voltage:    3KVAC, 1.2/50us(peak value)
Dimensions:   83 mm  x  37 mm  x  51mm
Weight:        72g

Choice for Example as bellow :

Model for example	Input signal	output interface
IS0 4021 A4-485	4-20mA	RS-485 interface
ISO 4021 U1-232	0-5V	RS-232 interface