Description

Product Selection:
WJ70- â–¡
     Communication Interface
                 485： output is RS-485 interface   
                                     232： output is RS-232 interface
Sample 1:  part No.: WJ70-232   means output is RS-232 interface
Sample 2:  part No.: WJ70-485   means output is RS-485 interface

WJ70 General *:*/* &*;(*@********************nt-family:宋体;">℃, Vs is 24VDC)
Input type: switch input,4 channels (DI0~DI3)
         Low level: input   < 1V
         High level: input  4 ~30V
Input Resistance: 3KΩ
Output type:C type relay signal output,4 channels (DO0~DO3) .Normally open/normally closed and public
          Contact load capacity: 1A 125VAC or 2A 30VDC .
          Contact form: 2Z
          Maximum switching voltage: 240VAC / 120VDC
          Maximum switching current: 2A
Communication: RS-485 protocol or RS-232 standard characters protocols and MODBUS RTU communication protocol
              Baud Rate (2400,4800,9600,19200,38400 bps) can be selected via software
Address (0 to 255) can be selected via software
Communication Response Time: 100 ms maximum
Power Supply: +8 ~ 32VDC wide range power supply, internal anti-reverse and over-voltage protection circuit
Power Loss: less than 0.5W
Operating Temperature: - 45 ~ +85℃
Humidity: 10 ~ 90% (no condensation)
Storage Temperature: - 45 ~ +85℃
Storage Humidity: 10 ~ 95% (no condensation)
Isolation Voltage: Isolation between each input,isolation between each output. Input/output/power supply: three-isolation (1500VAC)
Dimensions: 120 mm x 70 mm x 43mm
Features：                                                                      
>> Four switch input, four relay output
>> Can read input level status via the RS-485/232 interface
>> Can set output state via the RS-485/232 interface
>> Input/output/power supply: three-isolation (1500VAC)
>> Isolation between each input,isolation between each output

>> Wide power supply range: 8 ~ 32VDC                            
>> High reliability, easy programming, easy application
>> DIN35 Rail-mounted
>> Can programme setting module address,baud rate
>> Support Modbus RTU communication protocol
>> Dimensions: 120 mm x 70 mm x 43mm

Function Description:
WJ70 remote I/O module can be used to measure 4 channels switching signal, and 4 channels relay signal output.4-channel C type relay signal output,there are often open and close nodes.
1. Switch signal input and output
4 channels switching signal Input, can connect dry contact and wet contact.Details refer to the wiring diagram.
2. Communication protocol
Communication Interface: one channel standard RS-485 communication interface, or one standard RS-232
communication interface, specify when ordering.
Communication Protocols: supports two protocols, characters protocol of the command set defined and MODBUS
RTU communication protocol. Can be programmed using the kind of communication protocol, can be achieved with PLC, RTU of many Brands or computer monitoring system for network communication.
Data Format: 10 Bits. 1 start bit,8 data bits,1 stop bit.
Address: (0 to 255) and baud rate (2400,4800,9600,19200,38400 bps) can be set, the most long-distance about communication networks is up to 1200 meters, through the twisted-pair shielded cable.
Communication interface of high anti-jamming design, ± 15KV ESD protection, communication response time is less
than 100mS.
3. Anti-jamming
According to need to set the checksum. Module internal has transient suppression diodes, can inhibit a variety of surge pulse, protection module, and internal digital filter can also be well suppressed from the grid frequency interference.