Ebyte 4440-GPRS User Manual
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Ebyte 4440-GPRS User Manual

Ebyte 4440-GPRS User Manual

Gprs/rs485 net io
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E850-DTU(4440-GPRS)
User Manual
This manual may change with the continuous improvement of the product. Please refer to the latest version of the instruction.
Chengdu Ebyte Electronic Technology Co., Ltd. reserves all rights of final interpretation and modification of this manual.

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Summary of Contents for Ebyte 4440-GPRS

  • Page 1 E850-DTU(4440-GPRS) User Manual This manual may change with the continuous improvement of the product. Please refer to the latest version of the instruction. Chengdu Ebyte Electronic Technology Co., Ltd. reserves all rights of final interpretation and modification of this manual.

  • Page 2: Quick Start

    Note: Products can be customized, such as conditional control (how to output based on input state) 1. Quick start This chapter is a quick introduction to the E850-DTU (4440-GPRS) series. It is recommended that users read this chapter carefully and follow the instructions. It will have a systematic understanding of the product, and users can also select the chapters of interest as needed.
  • Page 3 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 1.1 Connection 1.1.1 RS485 connection 1.1.2 switch input connection 1.1.3 Relay output connection Copyright ©2012–2018，成都亿佰特电子科技有限公司...

  • Page 4: Analog Input Connection

    E850-DTU(4440-GPRS) datasheet 1.1.4 Analog input connection 1.2 Quick instruction Cable connection: The computer connects to the E850-DTU (4440-GPRS) via USB to RS485. Network connection: Insert SIM card in power-off state. Power supply: E850-DTU (4440-GPRS) working voltage is DC 8-28V. 1.2.1 RS485 control Select the port, click “Search”, and search the device.

  • Page 5: Network Control

    Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet At this time, you can see the current device address, for the "auto refresh" process, you can perform the switch output control, the switch input read, the analog input read. 1.2.2 Network control At the website: http://yun.cdebyte.com/www/data_direct...
  • Page 6 E850-DTU(4440-GPRS) datasheet 2. Introduction E850-DTU (4440-GPRS) is a network IO product that supports 4 switch inputs (default dry contact), 4 analog inputs, and 4 relay outputs. Support Modbus TCP/RTU protocol. The product is highly easy to use and can be easily and quickly integrated into your system for GPRS-based remote control.
  • Page 7 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet Accuracy 0.2% RS485：1200~115200bps Data interface Network type GPRS Configuration command Modbus TCP/RTU Software parameter Network protocol Modbus TCP/RTU Working mode Master mode, slave mode Data transmission mode TCP Client 2.2 Size and interface Copyright ©2012–2018，成都亿佰特电子科技有限公司...
  • Page 8 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet Definition Function Description RS485 G Signal ground Signal ground, can be no onnected RS485 A RS485 A RS485 A connects with device A RS485 B RS485 B RS485 B connects with device B DC-IN -...
  • Page 9 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet switch input ground Can be paired with DI 2 DI 3 switch input 3 Forming dry contact with DIG switch input ground Can be paired with DI 3 DI 4 switch input 4 Forming dry contact with DIG...
  • Page 10 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 3 indication DI 4 switch input channel Green LED, lights up when DI 4 and DIG are shorted 4 indication DO 1 Relay 1 output Green LED, lights up when NO 1 and COM 1 close...
  • Page 11 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 10019 DI3 switch intput Read only (0x0012) 10020 DI4 switch intput Read only (0x0013) AI1 input value， unit 30017 Read only (0x0010) (uA) AI2 input value， unit 30018 Read only (0x0011) (uA) 0x03 0-20000 0x04 AI3 input value，...

  • Page 12: Modbus Address Table

    Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet transmission （0x00A9) 40171 IMEI value Read only （0x00AA) 40182 SN value Read only 0x03 （0x00B5) 40193 Read only （0x00C0) Reserve 40300(0x012 Version number Read only 0x03 3.2 Modbus address table Modbus address table 1 (default) …...

  • Page 13: Working Mode

    Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 4. Function 4.1 Working mode The working mode is master mode and slave mode, configured by Modbus register 40081 (0x0050). When the register value is 0, it is in master mode; when the register value is 1, it is slave mode, the default slave mode.

  • Page 14: Master Mode

    Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 4.1.2 Master mode In Master mode (register value is 0x00), the data sent by the network or 485 bus (sender) to the device conforms to the Modbus RTU, Modbus TCP protocol, and the address in the data is the device address, and the device responds to the sender with the same protocol.
  • Page 15 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 4.2 IO basic function 4.2.1 switch DO output Read switch DO output  Function code: 01, Read coil state Address range：00017(0x0010)~00020(0x0013) Note: When the device relay is passively output, and the coil is not power on, the NC and COM of the relay are normally closed, the NO and the COM are normally open, the value is 0;...
  • Page 16 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet Control switch quantity DO output  Function: 05，Write a single coil state, 0F, Write multiple coil states Address range: 00017(0x0010)~00020(0x0013) Note: When the device relay is passively output, and the coil is not power on, the NC and COM of the relay are normally closed, the NO and the COM are normally open;...
  • Page 17 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 00 11 00 02 62 95 Write Device Switch Send Function number of Write ModBus quantity Bytes code switch value code address address quantity 00 11 00 02 84 0F Switch Receive Device ModBus Function...
  • Page 18 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 00 10 00 04 78 0C Send Device ModBus Function Write number of Start address CRC code address code switch quantity 61 8B Receive Device ModBus Function Bytes returned Write value CRC code address code...
  • Page 19 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet Transmi Unit Functi Write number ssion Protocol Analog quantity Length identifie of analog identifie identifier address code quantity 00 01 00 00 00 05 26 DA Transmi Unit Functi ssion Protocol Receive Length identifie Bytes returned...
  • Page 20 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 4.3 IO special function 4.3.1 Pulse count and count clear to zero The pulse count will not be saved after power off, and the pulse level maintenance time must be more than 10ms to be effective. The switch input changes from the disconnected state to the closed state and maintains the closing time of 10ms or more, and then becomes to disconnected state, completing a pulse count.
  • Page 21 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet Address range：40065 (0x0040) Note ： The lower four bits of the register value represent the DI4, DI3, DI2, and DI1 counts respectively. Writing a '1' indicates that the count is cleared and the pulse count is restarted.
  • Page 22 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet Switch quantity change uploading protocol is as follows, The frame headers 0xAA and 0xBB are fixed, and the values of DI1, DI2, DI3, and DI4 are 0x00, 0x01, and 0xFF. 0x00 represents the switch quantity input disconnected...
  • Page 23 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 4.4 Network function 4.4.1 Server IP or domain name, port, TCP or UDP settings (Socket) The server IP or domain name is stored by 22 modbus registers. The first register is used to store the ASCII code length corresponding to the IP or domain name. The remaining registers are used to store the ASCII code value corresponding to the IP or domain name.
  • Page 24 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 00 0D 31 31 36 2E 36 32 2E 34 32 2E 31 39 32 00 00 00 00 00 00 63 00 18 00 00 00 00 00 00 00 00 00 00 7B F0...
  • Page 25 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 40124(0x007B) 40125(0x007C) 40126(0x007D) -- 40145(0x0090) 40146(0x0091) Type Length Registration packet value Registration packet mechanism 41 42 43 44 45 46 47 48 49 4A 00 01 00 0A 00 00 00 00 00 00 00 00 00 00...

  • Page 26: Heartbeat Package

    Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet Tran Prot Unit smis Regis ocol Leng Addr sion Write value ident ntifi ident length ifier ifier 00 01 00 00 00 06 00 7B 00 17 Transm Protoco Rece Unit Functi ission Lengt iden...
  • Page 27 Wireless Data Transceiver E850-DTU(4440-GPRS) datasheet 00 00 00 0A 00 01 02 03 04 05 06 07 08 09 00 00 92 00 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 52 9E...
  • Page 28 4.4.5 Ebyte cloud transparent transmission The Ebyte cloud transparent transmission function can be turned on or off. The register corresponding to this function is 40170 (0x00A9), which supports 0x03, 0x06, 0x10 function codes： When the value of this register is 0x0000, the cloud transparent transmission function is turned off;...

  • Page 29: Important Notes

    Please refer to our website for new product information.  About us Technical support: support@cdebyte.com Documents and RF Setting download link: www.ebyte.com Thank you for using Ebyte products! Please contact us with any questions or suggestions: info@cdebyte.com ------------------------------------------------------------------------------------------------- Fax: 028-64146160 ext. 821 Web: www.ebyte.com Address: Innovation Center D347, 4# XI-XIN Road,Chengdu, Sichuan, China Copyright ©2012–2018，成都亿佰特电子科技有限公司...

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