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Item specifics
  • Brand Name: BETTERSHENGSUN
  • Test1: 4
  • Test4: 4
  • Model Number: RS485 collector card
  • is_customized: Yes
Product Description

Input 0/4-20mA( Default send.)

 
Input 0-10V
Input 0-20V
Input 0-15V
Input 0-5V
Input 0-30V

 

 

Introduction to the


8 0 to 20 ma current (default) analog acquisition (co-sponsored, free to 0 to 5 v, 0 to 10 v, 0 to 15 v, 0 to 20 v, 30 v) 0 -
Line 2 0 to 10 v analog output
RS485 interface, the MODBUS RTU protocol


12 to 24 v power supply wide input range


High stability.


Encryption sex is strong, has a unique serial number, have internal 16 bytes of storage space, no lose when power supply drop
Provide test software and VC PC source


Module size: 115 x 90 x 40 mm

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Not the lowest price and performance for the best!CK0082R data acquisition interface card has a wide applicable scope, complete functions, good stability, high cost performance, etc.Can be widely used in industrial process control system, and laboratory data acquisition system.Communication by RS485 interface, long transmission distance, high stability.The software adopts the MODBUS RTU protocol, data transmission stability, universal good.Use screw type terminal blocks, convenient and secure connection.Features:8 analog input, 10 bitadc precision, converting speed 250 k/S, can collect 0 to 20 ma current, 0, 0 to 10 v to 5 v, 0, 0 to 20 v to 15 v, 0 to 30 v voltage, suitable for most industrial sensor and transmitter, strong anti-jamming capability.With over-voltage over-current protection, in the 0 to 5 v voltage mode, can be resistant to 24 v voltage, a RC filter.Two-way analog output, the output of 0 to 10 V voltage, 8 bitadc accuracy (0.05 V), the load current of 10 ma.485 communication interface, using the original installation import 485 chip of TI company, TVS diode chip integration, can prevent the lightning surge current of 400 w, the integration of plus or minus 15 kv HBM electrostatic discharge circuit, plus or minus 8 kv contact discharge circuit, plus or minus 15 kv air gap discharge circuit, performance than ordinary MAX485 chip.In addition, the board has also been added to the anti-jamming filter circuit, greatly improving the stability of the 485 bus, suitable for all kinds of complicated environment application.Communications software can change the address, change the baud rate, and have the function of hardware factory default.Using industrial-grade high-speed microprocessors, fast and stable, have internal watchdog, to prevent the crash and program run.Using MODBUS RTU protocol - applicability is wide and easily with other devices connected to the Internet, using CRC check, prevent data errors, with functions of automatic processing error command, completely solve the problem of false action.Wide range of 12 v and 24 v power supply voltage input, reverse connection protection.In order to improve the stability, respectively from the aspects of hardware and software to do a lot of protection and anti-interference measures.Hardware aspects are shown in figure 1 below.Software, optimization program, made a thorough complex testing, in any baud rate, sending random code or error command ten minutes in a row, not present any kind of operation, and stop sending, immediately send command correctly, completely normal work!For encryption, has a unique 7 bytes of serial number cannot be changed as a unique identifier of acquisition card, can read and write has 16 bytes of storage space, no lose when power supply drop, simple is used to store information.Stability is the hard truth!A series of measures to improve the stability

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Connection method

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Software agreementCommunication interface: RS - 485.Communication formats: a start bit, 8 data bits, no check, 1 stop bit.Baud rate: 9600 (software changes).Address: 1 (software changes).Communications: monitoring the host and the device adopts one-to-one or one-to-many master-slave query mode.Data protocol: the MODBUS RTU 1. The MODBUS protocol commands, explained in detail, and the sampleNote: the data of all of the following commands as hexadecimal, address as the default 01.Read analog input (0 x04)Host: addr 04 regH regL numH numL crcH crcLReturning from machine: addr 04 len d0H d0L...DnH dnL crcH crcLExplanation: register address starting from 0 count, numH numL said to read analog \'way.The analog input card has 6 road, adopts 10 bitadc, analog data are two bytes each road.Combined with the acquisition card, register address maximum 7, register for up to 8.For example, to read the 2 and 3 road, the register address of 00 01 register number of 00 02.Like to read all the analogue to the 8th road 1, register address as 00 00 00 register number for the euro.Return data collected 0-0 x3ff said analog, such as analog 0 to 20 mA, read the data of 18 c, decimal number is 396, then the current value for I = 20 mA * 396/1023 = 7.742 mA.Sensor is commonly 4 to 20 ma, if read value is less than 4 ma, is the connection line is faulty.Example: read the 1st to the 8th road analogHost: 01 04 00 00 00 CC 08 F1Returning from machine: 01 04 0 c d0H d0L...D5H d5L crcH crcLSetting analog output (0 x10)Host: addr 10 regH regL numH numL len d0H d0L d1H d1L crcH crcLReturning from machine: addr 10 regH regL numH numL crcH crcLExplanation: register address starting from 0 count, numH numL said to read analog \'way.The analog output card has 2 road, adopts 8 bitdac, analog output Settings of each road data range of 0-255 to take up two bytes, high byte constant is zero,.Combined with the acquisition card, register address maximum 1, register for up to 2., for example, to set up the two channel analog output respectively 4 v and 6 v, you need to set up the data to do = 255 * 4/10 = 102, d1 = 255 * 6/10 = 153 base of 0 x0066, 0 x0099.Example: setting analog output 1 road is 4 v, the first two analog output is 6 vHost: 01 10, 00 00 00 02 04 00 66 00 99 D3 DAReturning from machine: 01 00 00 00 02 10 41 C8Read the analog output (0 x03)Host: addr 03 regH regL numH numL crcH crcLReturning from machine: addr 10 len d0H d0L...DnH dnL crcH crcLExplanation: register address starting from 0 count, numH numL said to read analog \'way.The analog output card has 2 road, adopts 8 bitdac, so read the high byte of constant to zero.Combined with the acquisition card, register address maximum 1, register for up to 2.For example, to read 1 and 2 road analog, the register address is 00 00 register number is 00 02.Return the data range of 0-255 to 0 to 10 v output.Example: read two channels of analog outputHost: 03 01 00 00 00 02 C4 0 bReturning from machine: 01 04 0 c d0H d0L...D5H d5L crcH crcLThe following for extended functionality:To test whether connected (0 x30)Host: 30 00 00 00 addr 01 d0 crcH crcLReturning from machine: addr 01 ~ 30 d0 crcH crcLExplanation: the return of the ~ is sending d0 bitwise d0 invert.Ex. :Host: 01 00 00 00 01 30 to 55 CF 9 fReturning from machine: 01 30 01 AA 80 38Set the parameters (0 x32)Host: addr 32 regH regL numH numL len d0 crcH crcLReturning from machine: addr 32 regH regL numH numL crcH crcLExplanation: set the baud rate register address to 00 00 register number of 00, 01 data d0 0 to 6, respectively different baud rate, shown in the following table.Table: baud rate corresponding value

 

Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 15cm x 15cm x 15cm (5.91in x 5.91in x 5.91in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 15cm x 15cm x 15cm (5.91in x 5.91in x 5.91in)
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