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0-20MA / 4-20MA analog input module current acquisition module RS485 MODBUS communication

SKU: m32703

0-20MA / 4-20MA analog input module current acquisition module RS485 MODBUS communication 0 0 0 Reviews

$46.60

Product Description
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communication, module, communication module, Cheap communication, High Quality module, China communication module Suppliers.


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0-20MA / 4-20MA analog input module current acquisition module RS485 MODBUS communication
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Product Description
5pcs Adjustable speed light water experiment kit / DIY electronic production
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I. Product Overview l 8 single-ended analog input (DC-type 0-20mA / 4-20mA), using an independent industrial-grade AD 12 capture chip l using RS485 MODBUS RTU standard communication, networking and configuration software can be, PLC, industrial touch screen, etc. l with communication status indicators l communication circuit using lightning, anti-jamming design Signal acquisition and control l can be widely used in industrial field devices l normal three-year warranty Second, the main parameters l analog input channels 8 single-ended l analog input type DC-based 0-20mA / 4-20mA l analog input accuracy ± 0.02mA l Operating temperature range -20 ~ 70 l External Power Supply DC 9V ~ 30V / 2W l 1500VDC isolation protection l Installation standard DIN rail or screw mounting l Dimensions 125 × 73 × 35mm Third, the interface definition AVcc The positive terminal of the external power input AGnd The negative terminal of the external power input AI_1 + The first analog input positive terminal Gnd Signal ground, then the first analog input negative terminal AI_2 + 2-channel analog input positive terminal Gnd Signal ground, then a second analog input negative terminal AI_3 + 3-channel analog input positive terminal Gnd Signal ground, then the first three analog input negative terminal AI_4 + Section 4 analog input positive terminal Gnd Signal ground, then the first four analog inputs negative terminal AI_5 + 5-channel analog input positive terminal Gnd Signal ground, then 5-channel analog input negative terminal AI_6 + 6-channel analog input positive terminal Gnd Signal ground, then the first six-channel analog input negative terminal AI_7 + The first 7-channel analog input positive terminal Gnd Signal ground, then the first seven analog inputs negative terminal AI_8 + Article 8 analog input positive terminal Gnd Signal ground, then the first 8-channel analog input negative terminal 485A RS485 signal A + 485B RS485 signal B- Fourth, a schematic diagram of the analog input V. Communications Description 1. Communication Parameters (factory setting): 9600, N, 8,1 Parameters Explanation 9600 Baud Rate N (no parity) Parity bit 8 Data bits 1 Stop bits 2, the analog input signal acquisition command: Send: 01 03 00 00 00 08 44 0C (cases / hex) Data Byte Data Description Remark 01 1 Module address Address range 01-FE 03 1 Function Code 03 Read register 0000 2 Register Address (4x type) 0000- Analog Input starting register address 0008 2 Read length 0008- read eight registers 440C 2 CRC checksum All the data in front of the CRC Reception: 01 03 10 09 CE 00 00 00 00 00 00 00 00 00 00 00 00 00 00 6C 5B (cases / hex) Data Byte Data Description Remark 01 1 Module address Address range 01-FE 03 1 Function Code 03 Read register 10 1 Byte count 10- to read the 16-byte length 09CE 0000 0000 0000 0000 0000 0000 0000 16 Read data 09CE- read analog input channel 1 data 0000- read analog input channel 2 data 0000- read analog input channel 3 data 0000- read analog input channel 4 data 0000- read analog input channel 5 Data 0000- read analog input channel 6 Data 0000- read analog input channel 7 Data 0000- read analog input channel 8 data 6C5B 2 CRC checksum All the data in front of the CRC Receive instruction descriptions of analog input channels 1 current data as "09CE", converted to decimal for 2510, substituted into the formula: I = (DATA * 20) / 4095 = (2510 * 20) /4095≈12.26mA, other channel current data 0mA 3, module address setting command: Send: 0,006,006,400,010,804 (cases / hex) Data Byte Data Description Remark 00 1 Module address 00- bulk Address 06 1 Function Code 06 Write Single Register 0064 2 Register Address (4x type) 0064- modification module address 0001 2 Write data Setting module new address, range 0001-00FE 0804 2 CRC checksum All the data in front of the CRC Receive: 0,006,006,400,010,804 (cases / hex) This command indicates that an instruction to a module, the module\'s new address is set to 01, this setting can save the loss of power; the default address of the module is 01, when the need for networking multiple modules, each module can address the individual settings, because the use of mass address, so when the setting requires 485 network can have only one module, otherwise it will create 485 network addresses of all modules are set to the same address, please use caution this instruction; when the module receives the correct after the command, make the appropriate action according to the command and response command sent back to the host, indicating successful communication 4. Communication parameter setting commands: Send: 0,106,006,500,021,814 (cases / hex) Data Byte Data Description Remark 01 1 Module address Address range 01-FE 06 1 Function Code 06 Write Single Register 0065 2 Register Address (4x type) 0065- modify the communication parameters 0002 2 Write data 0001- set communication parameters 4800, N (no parity), 8,1 0002- set communication parameters 9600, N (no parity), 8,1 0003- set communication parameters 19200, N (no parity), 8,1 0004- set communication parameters 38400, N (no parity), 8,1 0005- set communication parameters 4800, E (parity), 8,1 0006- set communication parameters 9600, E (parity), 8,1 0007- set communication parameters 19200, E (parity), 8,1 0008- set communication parameters 38400, E (parity), 8,1 1814 2 CRC checksum All the data in front of the CRC Receive: 0,106,006,500,021,814 (cases / hex) This command indicates that an instruction to a module, the module\'s communication parameters set for \'9600, N (no parity), 8,1\', this setting can save the loss of power; the default communication parameters module is\' 9600, N (no check), 8,1 \', when setting up a new communication parameters should be selected in the communication settings correct communication parameters, and restart the communications port, please use caution this instruction; usually, set baud rate, transmission speed slow, high transmission stability, set the baud rate, transmission speed, low transmission stability; when the module receives the correct command, make the appropriate action according to the command and response command sent back to the host, indicating successful communication Six, communications indicators l The module power supply and communication indicator shows green l module communication, communication indicator blinks l module receives the correct command, communication indicator shows green l module received incorrect instructions or address of the instruction in this module, communication indicator shows red Seven, PC commissioning instructions This module provides a debug software to implement the module debugging functions and parameter settings, please follow the following steps: l Use the RS485 converter to connect computers and modules l The 12V or 24V external power entry module and energized, to avoid unnecessary damage, check the power before power is correctly connected the positive and negative terminals l open debugging software, select the appropriate module type, enter the function or parameter setting interface debugging l Set the correct communication parameters, open communication ports l Select the appropriate setting, collection and control options Eight, RS485 networking diagram


  • Compatible Brand/Model: None
  • Brand Name: MEIBAI
  • Compatible: Game Console
  • is_customized: yes

  • Unit Type: piece
  • Package Weight: 0.25kg (0.55lb.)
  • Package Size: 11cm x 11cm x 11cm (4.33in x 4.33in x 4.33in)

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