R4CVA02 Mini 2CH Modbus RTU RS485 A/D Converter for 4-20mA 0-5V 0-10V Input Signal 4-25VDC R4CVA02

Eletechsup R4CVA02 there are four versions, please choose the version you need:


Power supply 6-25V, 0-5V/10V input;
Power supply 4-5.5V, 0-5V/10V input;
Power supply 6-25V, 0/4-20MA input(Replace N46IB02);
Power supply 4-5.5V, 0/4-20MA input;




Features:

1 Working voltage : 4-5.5V or 6-25V two versions
2 Working current : 9-13MA
3 MODBUS RTU Command: Write 06/16, Read 04/03
4 IN1/IN2 channels, the measuring range of the voltage version is 0-11V, the measuring range of the current version is 0-21MA
5 Voltage version has a resolution of 0.01V and a measurement accuracy of 0.5%; it can be calibrated if the error is greater than 1%
6 Current version has a resolution of 0.01V and a measurement accuracy of 0.5%; it can be calibrated if the error is greater than 1%
6 MODBUS RTU commands can be input by PLC in addition to computer serial port super terminal input.
7 In MODBUS RTU command mode, up to 247 devices can be supported in parallel.
8 Size: 30 * 15 * 3.5mm
9 Weight: 2 grams


For instructions details, please refer to the ''R4CVA02 R4IVB02 MODBUS RTU Commamd''






This is a 2.54MM pin header version of the RS485 0-5V/0-10V/4-20MA/0-20MA voltage/current collector.
A 12-bit ADC is used to collect the voltage signal, but the data read is voltage/current data with a unit of 0.01V/0.01MA.
The size is kept to a minimum while meeting the functional performance. It can be used as a core board and embedded into the base board.




Interface definition:


Vi : Power input+
G : Power input-
A+: RS485 signal A+
B-: RS485 signal B-
GND: Signal common -
IN1 : Signal 1+
IN2 : Signal 2+




For more information, please contact me




Application






PLC Output expansion board
Smart Home,Home Automation ,Wiser Home;
PTZ CCTV Camera
Security Monitoring
Displacement/Hall sensor


PT100 K P J Thermocouple Sensor
Automatic curtain control
0-20MA/4-20MA Current
Sensor


0-10V/0-5V Voltage Sensor


Motion detector
Industrial field measurement and sensing






Wiring diagram:







RS485 bus connection method: