16-CH Analog Signal to RS485/RS232 Converter Sensor Signal a/D Conversion

• Customization: Available
• Conductive Type: Bipolar Integrated Circuit
• Input Type: Differential
• Model NO.: WJ29
• Integration: GSI
• Operating Temperature: -40℃ - 85℃
• Resolution: 12 Bit
• Shape: DIP
• Technics: Semiconductor IC
• Input Type1: Input Current / Voltage Input
• Accuracy: 0.05%
• Temperature Drift: ± 30 Ppm / ℃ (± 50 Ppm /
• Input Resistance: 100 (0-10mA/0- ± 10mA Current Input)
• Power Loss: Less Than 1W
• Operating Temperature1: - 45 ~ +80 ℃
• Humidity: 10 ~ 90% (No Condensation)
• Storage Temperature: - 45 ~ +80 ℃
• Transport Package: Wayjunr
• Specification: 120mm x 70mm x 43mm
• Trademark: wayjunr
• Origin: Guangdong, China
• Production Capacity: 9999
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 0.200kg

Product Description

WJ29 series 16-CH Analog Signal to RS485/232 Converter
(24Bits A/D Converter, data acquisition) 

Product Overview:
 WJ29 series products realize the signal acquisition between sensor and host, to measure 16 channels analog signals.
WJ29 products can be applied to RS-232/485 bus industrial automation control system,4-20mA / 0-5V signal
measurement, monitoring and control,0-75mV ,0-100mV and other small-signal measurement and signal isolation and
long-term industrial transmission and so on.
Products include power supply isolation, signal isolation, linearization, A/D conversion and RS-485 serial
communication. Each serial interface can connect up to 255 pieces WJ29 Series modules, communication using ASCII
code or MODBUS RTU communication protocol, and its instruction set compatible with the ADAM modules, baud rate
can been set by the code, with other manufacturers control module hang in the same RS-485 bus for easy programming. 

WJ29 series products are based on SCM's intelligent monitoring and control system, users set the calibration value,
address, baud rate, data format, checksum status, and configuration information are all stored in nonvolatile memory
EEPROM.
 WJ29 products are according to industry standard design, isolation between signal input / output, can withstand
voltage 3000VDC, high anti-interference ability and reliability. Operating temperature range is - 45 ~ +85 °C. 

Product Selection:	WJ29
Input Voltage or Current Signal	Interface
1:0-5V                            A1:0-1mA  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:user-defined            A8:user-defined	485: output is RS-485 interface 232: output is RS-232 interface	Sample 1: part No.:WJ29-A4-485 16 channels 4-20mA input signal,output is RS485 interface Sample 2: part No.:WJ29-U1-232 16 channels 0-5V input signal,output is RS232 interface Sample 3: part No.:WJ29-U8(U8:0-12V)-485 16 channels 0-12V input signal,output is RS485 interface

Company Profile

Shenzhen Weijunrui Technology Co., Ltd

Since: 2011
Specialty: The company's main products include analog acquisition modules, signal isolators/conversion modules, and signal transmitters
Capacity: Produce 10000 per month
Advanced Features:
Switching to TCP/network/remote IO module, Modbus RTU to TCP, RS232/485 to Ethernet, analog signal (current/voltage/thermistor/frequency/displacement/speed/pulse) isolation transmitter, mV differential signal amplifier, isolation amplifier, micro power DC-DC module power supply, etc

Function Description:

WJ29 General parameters:

WJ29 signal isolation acquisition module can be used to measure 16 channels voltage or current signal,
1. Analog signal input
 24-Bit acquisition accuracy, all products signal input range have been calibrated. In use, users also can program
calibration easily.
 About the specific current or voltage input range, please see product selection.
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

 (typical @ +25 ℃, Vs to 24VDC)
 Input type: Input current / voltage input
 Accuracy: 0.05%
 Temperature drift:± 30 ppm / ℃ (± 50 ppm / ℃, maximum) 

Input Resistance: 100Ω (4-20mA/0-20mA/0- ± 20mA current input)
 100Ω (0-10mA/0- ± 10mA current input)
 1KΩ (0-1mA/0- ± 1mA current input)
 >200K(5V/10V voltage input)
>1MΩ(below 2.5V voltage input)
AD conversion rate: 80 SPS (factory default, the user can send commands to modify the conversion rate)
 You can set the AD conversion rate 2.5 SPS, 5 SPS, 10 SPS, 20 SPS, 40 SPS, 80 SPS, 160 SPS, 320
SPS, 500 SPS, 1000 SPS command. (Channel conversion rate = AD conversion rate / Open numbers of channel)
 NOTE: after Modify the conversion rate, need re-calibration module, otherwise the measurement data
will be biased. You can also specify the conversion rate when ordering, we press the conversion rate you require
recalibration in the factory.
Common Mode Rejection (CMR): 120 dB (1kΩ Source Imbalance @ 50/60 Hz)
Normal Mode Rejection (NMR): 60 dB (1kΩ Source Imbalance @ 50/60 Hz)
Input Protection: over-voltage protection, over-current protection
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

FAQ

Q: How to contact you?
A: Please contact us via email or online customer service