Related Manuals for Ebyte E821-RTU
Summary of Contents for Ebyte E821-RTU
- Page 1 Chengdu Ebyte Electronic Technology Co.,Ltd E821-RTU (0400-ETH)User Manual E821-RTU(0400-ETH) User Manual...
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Page 2: Table Of Contents
4.3.11 Set heartbeat package time........................24 4.3.12 Clear the cache............................25 4.3.13 Set keep-alive parameters......................... 25 4.3.14 Set local port number..........................26 4.3.15 Set cloud transparent transmission function..................... 27 4.3.16 Set timeout restart time..........................27 Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd... - Page 3 Chengdu Ebyte Electronic Technology Co.,Ltd E821-RTU (0400-ETH)User Manual Important Statement................................28 Reversion History................................. 28 About Us....................................28 Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd...
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Page 4: Features
Support Ethernet port, you can use socket to connect to remote server, support TCP/UDP; Support Modbus TCP/RTU protocol; Support Ebyte Cloud, can be controlled by commands; Support 2 working modes, master mode and slave mode, slave can cascade multiple devices by RS485; ... -
Page 5: Quick Start
E821-RTU (0400-ETH)User Manual 1. Quick start This chapter is a quick introduction to E821-RTU (0400-ETH). It is recommended that users carefully read this chapter and follow the instructions before using the product. It will have a systematic understanding of the product, and users can also choose the one you are interested in according to your needs. -
Page 6: Basic Operation
Connection: The computer connects to E821-RTU (0400-ETH) by USB to RS485 cable or the computer connects to E821-RTU (0400-ETH) by Ethernet cable. Power supply: E821-RTU (0400-ETH) working voltage is DC 8~28V, and the power supply has at least 0.2A power supply capability.E821-RTU(0400-ETH). - Page 7 E821-RTU (0400-ETH)User Manual At this time, you can see the address of the current device, check "Auto Refresh" to perform analog input reading. The example shows that channel 4 has 10mA current input. Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd...
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Page 8: Ethernet Control
IP is "192.168.4.101", the subnet mask is "255.255.255.0", the role is "TCP server", and the port number is 8666. Click Local connection, set the computer IP: "192.168.4.10", subnet mask: "255.255.255.0", gateway: 192.168.4.1. Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd... - Page 9 LINK light is on to indicate the connection is successful. Send Modbus command: 01 03 00 10 00 04 45 CC, to read the current value collected by 4 analog channels. Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd...
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Page 10: Product Description
E821-RTU (0400-ETH)User Manual 2. Product description E821-RTU (0400-ETH) is a data acquisition product which supports four analog (current) inputs and supports Modbus TCP/RTU protocol. The product is highly easy to use and can be easily and quickly integrated into your system for remote network-based data acquisition. -
Page 11: Size And Interface Description
Chengdu Ebyte Electronic Technology Co.,Ltd E821-RTU (0400-ETH)User Manual 2.2 Size and Interface description Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 10 10... - Page 12 3 negative with the positive to collect analog data Analog signal input Analog signal input channel, used in combination AI4+ channel 4 positive with the negative to collect analog data Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 11 11...
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Page 13: Reset Button Description
Long press for 5S is valid. After the reset is successful, the RST LED flashes 3 times, the Modbus device address, RS485 serial port baud rate and parity bit are restored to the factory settings, other configuration parameters are unchanged. Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 12 12... -
Page 14: Modbus
0、2-65535 Do not clear the cache data 40330 (0x0149) Set clear cache Read/Write of the SOCKET A1 link Detection time: 10s, Detection Set keep-alive 40336 (0x014F) Read/Write interval: 5s, parameters Detection times: 30 Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd... -
Page 15: Modbus Address Table
Baud rate code value table 1200 2400 4800 3 (default) 9600 19200 38400 57600 115200 3.4 RS485 serial port parity bit value table Parity bit value table 0 (default) No parity Even parity Odd parity Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 14 14... -
Page 16: Configure Parameters By Setting Software
E821-RTU (0400-ETH)User Manual 3.5 Configure parameters by setting software Select the “Parameter Setting” column to read parameters and write parameters. For specific functions, please refer to the product function description below. Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 15 15... -
Page 17: Product Function
485 bus will be transmitted to the network, and the data on the network will be transmitted to 485 bus. This function of host mode can realize the cascade function of devices and the data transmission between 485 bus and network. Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd... -
Page 18: Rtu Basic Function
00 01 00 00 00 05 26 DA Transmiss Receive Protocol Unit Functio Number of bytes Analog-data input Length identifier identifier n code returned value identifier Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 17 17... -
Page 19: Analog Ai Acquisition Range Setting
Read value CRC check code address code bytes Modbus TCP protocol write register: 00 01 00 00 00 06 00 61 00 03 Send Transmissio Protocol Length Unit Functio Address Write value Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 18 18... -
Page 20: Device Sn Code Reading
Modbus TCP protocol write register: 00 01 00 00 00 06 00 67 00 01 Send Transmission Protocol Unit Functio Length Address Write value identifier identifier identifier n code Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 19 19... -
Page 21: Wan Port Ip Info Configuration
The IP address of the device needs to be obtained through the query command. 4.3.5 Set DNS Modbus RTU protocol write DNS register: 3D 8B 02 45 Send 00 79 00 04 E0 50 C0 A8 04 02 Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 20 20... -
Page 22: Set Network Protocol Parameters
Write value identifier identifier identifier code length of bytes 00 01 00 00 00 0F 00 81 00 04 Receive Transmission Protocol Function Register Length Unit identifier Address identifier identifier code length Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 21 21... -
Page 23: Set The Registration Package Mode
Register Number ModBus Address Write value check code length of bytes address code 00 95 00 15 11 EA Receive Device ModBus Function Address Register length CRC check code address code Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 22 22... -
Page 24: Set Heartbeat Package Mode
68 23 67 AA 00 2A 00 30 00 00 00 00 00 00 00 00 00 00 00 00 11 00 22 00 33 00 44 00 12 33 23 11 10 1D 1C BB AA indicates the contents of the registration package. For example: send the registration package content: ebyte, the write value is 01 05 65 62 79 74 65 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00. -
Page 25: Set Heartbeat Package Content
00 00 00 00 00 00 00 00 00 00 00 00 11 00 22 00 33 00 44 00 12 33 23 11 10 1D 1C 1B 1A is heartbeat package content. For example: send the heartbeat package content: ebyte, the write value is 01 05 65 62 79 74 65 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 4.3.11 Set heartbeat package time... -
Page 26: Clear The Cache
SOCKET A1 link is cleared, but the serial cache data is not cleared. 4.3.13 Set keep-alive parameters Modbus RTU protocol write register: 02 D1 02 D1 00 Send 01 4F 00 03 BD 3D Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 25 25... -
Page 27: Set Local Port Number
Length Address Write value identifier identifier identifier code 00 01 00 00 00 06 01 5D 11 A1 Receive Transmission Protocol Unit Function Length Address Write value identifier identifier identifier code Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 26 26... -
Page 28: Set Cloud Transparent Transmission Function
Write value n identifier identifier identifier n code 00 01 00 00 00 06 01 63 FF A0 Receive Transmissi Protocol Unit Functio Length Address Write value identifier identifier n code Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd 27 27... -
Page 29: Important Statement
Ethernet has not received any data for a long time. Important Statement All rights to interpret and modify this manual belong to Ebyte. This manual will be updated based on the upgrade of firmware and hardware, please refer to the latest version.