| Sign In | Join Free | My carsrow.com | 
 | 
| Categories | Analog I/O Modules | 
|---|---|
| Brand Name: | WAYJUN | 
| Model Number: | WJ20 | 
| Certification: | CE | 
| Place of Origin: | CN | 
| color: | green | 
| mounting: | DIN35 | 
| Applications: | automation control system | 
mall size,low price, WJ20 series two channels 4-20mA/0-10V/0-5V to RS485/232 Converter with MODBUS
Features:
>> Two channels analog signal acquisition,isolated RS-485/232
output
>> 16-bit AD converter,testing accuracy>0.1%
>> Can Program and calibrate modules accuracy via RS-485/232
interface
>> Signal input/output: 3000VDC Isolation
>> Wide Power supply:8~32VDC
>> High reliability,easy programming,easy installation.
>> Can program setting module address,baud rate
>> 0-5V/0-10V voltage signal or 4-20mA/0-20mA current signal
input
>> Defaults MODBUS RTU communication protocol
>> DIN35 Rail-mounted
>> Dimension: 79.0x69.5x25.0 mm
Applications:
>> Signal testing/monitoring/control
>> RS-232/485 industrial automation control system
>> Industrial field signal isolation
>> Process Monitoring & Control
>> Test sensors signal
>> Laboratory Data Acquisition
>> Medical machine monitoring
>> 4-20mA/0-5V signal acquisition
MODBUS RTU communication protocol:
Module default protocol is MODBUS RTU communications protocol, the default address is 01, baud rate is 9600, data format is 10bits, 1 start bit, 8bits data bit, 1 stop bit, no check.
If you forget the module address and baud rate, you can shorten INIT1(PIN 9) to INIT2(PIN 12), and then restart the module power supply, the module restored to the default state temporarily: address 01, baud rate is 9600.
Users can query the address, baud rate and communication protocol register 40201-40203, get the module actual address, baud rate and communication protocol, also you can follow the need to modify the address, baud rate and communication protocol. Please note MODBUS communication please set register 40203 to 1, otherwise it can not MODBUS communication. When the INIT1(PIN 9) is turned off to INIT2(PIN 12), restart the module power supply, the module will re-set the actual address and baud rate to run.
Support MODBUS RTU communication protocol Function Code 03(Read Holding Registers) and Function Code 06(set a single Register), command format as standard MODBUS RTU protocol.
| PIN | Name | Function | PIN | Name | Function | 
| 1 | PW+ | Power+ | 7 | IN0+ | Analog signal input 0+ | 
| 2 | GND | Power- | 8 | IN0- | Analog signal input 0- | 
| 3 | INIT | Initialization state set | 9 | INIT1 | Initial state setting | 
| 4 | D+ | RS-485 signal+ | 10 | IN1+ | Analog signal input 1+ | 
| 5 | D- | RS-485 signal- | 11 | IN1- | Analog signal input 1- | 
| 6 | GND | Power-,Output port ground | 12 | INIT2 | Initial state setting | 
Example 1: If the module address is 01, hexadecimal sent: 010300000001840A, to get the register data 40001.
| 01 | 03 | 00 | 00 | 00 | 01 | 84 | 0A | 
| Module address | Read holding register | Register address High | Register address low | Register quantity high | Register quantity low | CRC check low | CRC check high | 
|   | 
 WAYJUN 3000VDC isolation 8 channels 4-20mA/0-5V to RS485 analog I/O module blue AD Converters 24Bits DIN35
                                                                                    
                        
                        
                        
                                                            WAYJUN 3000VDC isolation 8 channels 4-20mA/0-5V to RS485 analog I/O module blue AD Converters 24Bits DIN35
                                                    
                        
                     4-20mA to RS485 Converter AD Converter  0-5V to rs232 with Modbus 12bits WAYJUN Analog data acquisition module
                                                                                    
                        
                        
                        
                                                            4-20mA to RS485 Converter AD Converter  0-5V to rs232 with Modbus 12bits WAYJUN Analog data acquisition module
                                                    
                        
                     WAYJUN RTD Temperature Signal to RS485/232 temperature signal acquisition 8-32v DIN rail CE approved
                                                                                    
                        
                        
                        
                                                            WAYJUN RTD Temperature Signal to RS485/232 temperature signal acquisition 8-32v DIN rail CE approved
                                                    
                        
                     WAYJUN 16-CH 0-5V to RS485 Modbus Converters DIN35 blue signal acquisition CE approved
                                                                                    
                        
                        
                        
                                                            WAYJUN 16-CH 0-5V to RS485 Modbus Converters DIN35 blue signal acquisition CE approved
                                                    
                        
                     WAYJUN 16-CH 0-5V to RS232 Modbus Converters DIN35 blue signal acquisition CE approved
                                                                                    
                        
                        
                        
                                                            WAYJUN 16-CH 0-5V to RS232 Modbus Converters DIN35 blue signal acquisition CE approved
                                                    
                        
                     wayjun WJ25 series 5 channels RTD Temperature Signal to RS485/232 temperature signal acquisition 24bits blue
                                                                                    
                        
                        
                        
                                                            wayjun WJ25 series 5 channels RTD Temperature Signal to RS485/232 temperature signal acquisition 24bits blue
                                                    
                        
                     temperature signal measurement and monitoring RS485/232 temperature signal acquisition 24bits AD converter blue
                                                                                    
                        
                        
                        
                                                            temperature signal measurement and monitoring RS485/232 temperature signal acquisition 24bits AD converter blue
                                                    
                        
                     WAYJUN  8 channels 4-20mA/0-10V to RS232 analog I/O module blue AD Converters 24Bits DIN35 3000VDC isolation
                                                                                    
                        
                        
                        
                                                            WAYJUN  8 channels 4-20mA/0-10V to RS232 analog I/O module blue AD Converters 24Bits DIN35 3000VDC isolation
                                                    
                        
                     WJ20 series16bits  2-CH 4-20mA to RS485/232  green A/D Converters analog I/O module CE approved  DIN35
                                                                                    
                        
                        
                        
                                                            WJ20 series16bits  2-CH 4-20mA to RS485/232  green A/D Converters analog I/O module CE approved  DIN35
                                                    
                        
                     WAYJUN one channel Analog  signal to RS485 Converter A/D Converter  0-5V to rs232 with Modbus 12bits
                                                                                    
                        
                        
                        
                                                            WAYJUN one channel Analog  signal to RS485 Converter A/D Converter  0-5V to rs232 with Modbus 12bits