4CH 4-20mA input to Modbus RS485/RS422

1. And the second generation of Mornsun 3000V isolation voltage module, better performance. Isolation voltage 3000V, more secure;

2. Super high speed optical coupling chip, meet the communication requirements of high baud rate;

3. Dual serial port circuit, the use of multi-level protection cascade (TVS+RC filter), all for the design of industrial environment;

4. General guide rail housing, the use of more convenient;

5. +7 - 32V DC voltage supply input, anti - Anti - ground protection;

6. Output, perfect protection simulation, 1000V anti intrusion protection, anti surge plus 600W tube TVS;

7. Standard MODBUS-RTU interface, to adapt to all the PLC module connection;

8. Imported original 4 ADC 16 bit TI chip;

9. Baud rate range: 300 ~ 115200bps (also more special requirements please);

10. all industrial design, to ensure that the use of new imported chips; temperature range: -40 degrees to 85;

11. Optional OLED, LCD screen, display the address, baud rate, data bits, stop bits, parity bit,4 channel acquisition value;

12. 24V DC output, convenient for the second line, three wire transmitter power supply.

13. the power indicator lamp, communication indicator light.

AIN-4CHN Type analog signal transmitter supports MODBUS-RTU function code 03 and two 06 kinds of function code.

For example, channel 1 of the channel 1 analog output, that is, write the register 4x0000, the order is as follows:

Among them, the set of analog data is 1388, that is, 0x1388, decimal number is 5000, then the output value of I=5000/1000 = 5; 84 9C is 16 Decimal value,

CRC-16 (BISYNCH, polynomial is x16 + x15 + x2 + 1 shield word for 0A001H)