Ebyte E870-E1 - User Manual

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Summary

Chapter 1 Product Description

1.1 Product introduction

E870-E1 is an Ethernet cloud IO gateway based on the Ebyte Cloud Device Communication Protocol.

1.2 Functional features

Lists the key features and capabilities of the E870-E1 gateway, including protocols and I/O.

Chapter 2 Quick Use

2.1 Devices Preparation

Outlines the necessary hardware components and network environment for initial device setup.

2.2 Devices Connection

Details the steps to connect the E870-E1 gateway to the Ebyte cloud platform.

2.2.1 Connect Platform

Step-by-step guide to connecting the device to the Ebyte cloud platform via the web interface.

2.2.2 Connect to the self-built serve

Instructions for connecting the device to a user-created server using host computer configuration.

2.2.3 AI Analog input connection

Schematic diagram illustrating how to connect analog input signals to the device.

2.2.4 DI Switch input connection

Schematic diagram showing the connection of digital input (switch) signals to the device.

2.2.5 Relay output connection

Schematic diagram for connecting external loads to the device's relay output channels.

2.3 Use of transparent transmission

Chapter 3 Technical Indicators

3.1 Specifications

Comprehensive technical specifications of the E870-E1 gateway, covering electrical, physical, and communication parameters.

3.2 Mechanical dimension drawing

Visual representation of the device's physical dimensions, mounting holes, and port layout.

3.3 Port Description

Detailed explanation and pinout for all physical ports available on the E870-E1 gateway.

3.4 LED Indicator Description

Explains the status indicated by the PWR, STATE, and DATA LEDs on the device.

3.5 Serial port description

Details the configurable parameters for the device's serial port communication, such as baud rate and data bits.

Chapter 4 Product function introduction

4.1 DO Output

Describes the functionality and configuration of the Digital Output (DO) relay channels for controlling external devices.

4.2 DI input

Explains the functionality and active reporting capabilities of the Digital Input (DI) channels for monitoring signals.

4.3 AI input mode

Details the configuration and operation of the Analog Input (AI) channels for current signal acquisition.

4.4 Network transparent transmission mode

Enables seamless data transfer between serial devices and network servers without data conversion.

4.5 MOQTT Mode

Provides instructions for configuring the device to connect and communicate using the MQTT protocol.

4.5.1 Alibaba Cloud

Steps to connect the E870-E1 to Alibaba Cloud using its specific platform parameters.

4.5.2 Baidu Cloud

Steps to connect the E870-E1 to Baidu Cloud using its specific platform parameters.

4.5.3 OneNET

Steps to connect the E870-E1 to the OneNET platform using its specific cloud parameters.

4.5.4 Standard MQTT3.1.1

Guide for connecting to a standard MQTT server, exemplified by Tencent's service.

Chapter 5 Special Function

5.1 Ebyte Cloud Modbus to JSON

Converts serial Modbus RTU data into Ebyte Cloud's JSON message format for transmission.

5.2 Alibaba Cloud Modbus to JSON

Converts serial Modbus RTU data into Alibaba Cloud's JSON message format for data exchange.

5.3 Edge acquisition

Collects external data points and reports them in JSON format, supporting real-time updates.

5.4 Registration packet

Allows the device to send registration packets to the server for identification and authorization.

5.5 Heartbeat packet

Enables the device to send heartbeat packets to maintain an active connection with the server.

5.6 Firmware upgrade

Overview of methods for upgrading the device's firmware, including network and serial port options.

5.6.1 Network Upgrade

Step-by-step instructions for performing firmware upgrades over the network connection.

5.6.2 Serial port upgrade

Step-by-step instructions for performing firmware upgrades using the serial port connection.

5.7 Hardware is restored to factory default

Procedure to reset the device to its original factory default parameters and settings.

5.8 RTU slave

Describes how to use the device as an RTU slave, responding to Modbus RTU commands from a master device.

Chapter 6 Configuration methods

The E870-E1 is an Ethernet cloud IO gateway developed by Chengdu Ebyte Electronic Technology Co., Ltd. It operates based on the "Ebyte Cloud Device Communication Protocol" and is designed for industrial applications, supporting a working environment from -40°C to 85°C.

Function Description:

The E870-E1 acts as a bridge between industrial devices and cloud platforms, enabling remote control and data acquisition. It supports sending commands from a server to control or acquire data from connected devices. The gateway features 4-way switch value acquisition (DI), 2-channel analog input (AI) for 0-20mA or 4-20mA signals, and 2-channel A-type relay output (DO). It supports multiple protocols for server access, including TCP, UDP, and MQTT, and offers settings for heartbeat and registration packets.

The device can acquire and control edge RTU nodes and can also function as an RTU device to parse Modbus commands for controlling device IO. It supports various configuration methods, including the Ebyte cloud platform, host computer, and network.

Key Functional Features:

Communication Protocol Support: Supports the "Ebyte Cloud Device Communication Protocol" open protocol.
Remote Management: Enables remote management via the Ebyte cloud platform.
Edge Acquisition & Control: Supports acquisition and control of 20 Modbus RTU data points at the edge.
Reporting Methods: Offers change reporting, periodic reporting, and other reporting methods.
Edge Computing: Supports adding edge computing formulas for upstream and downstream data.
Cloud Integration: Supports Alibaba Cloud IoT model JSON protocol reporting.
Ethernet Interface: Automatic 10/100M Ethernet interface.
Socket Connections: Supports 4-way Socket independent connection to user-defined servers.
Protocols: Supports TCPC, UDPC, and MQTT3.1.1 protocols.
Packet Management: Supports registration and heartbeat packages.
Configuration Flexibility: Configurable via Ebyte cloud platform, host computer, and network.
Firmware Upgrade: Supports device upgrades via network and serial port using a host computer.
Analog Inputs (AI): 2 analog inputs (0-20mA/4-20mA).
Switch Inputs (DI): 4-way switch inputs (dry contact).
Switch Outputs (DO): 2-way switch outputs (A-type relay).
RTU Device Functionality: Can parse host Modbus RTU commands to collect and control IO.
Industrial Design: Designed for industrial environments, operating from -40°C to 85°C.

Important Technical Specifications:

Power Supply: DC 8V~28V.
Power Indicator: Red LED.
Network Port: 10/100 adaptive RJ45 Ethernet interface.
Serial Port: RS-485.
Baud Rate: 9600bps (default), configurable from 1200 to 230400 bps.
Serial Port Data Bits: 8.
Serial Port Check Bit: NONE, ODD, EVEN.
Serial Port Stop Bit: 1, 2.
Protocol: "Ebyte Cloud Device Communication Protocol", transparent transmission.
DI Channels: 4-way, default dry contact input, 1 kHz collection frequency.
AI Channels: 2-way, single-ended input, 0-20mA (default)/4-20mA input type, 3‰ acquisition accuracy, 10Hz collection frequency.
DO Channels: 2-way, A-type relay output, level output, pulse output.
Relay Contact Capacity: DC: 30V/7A, AC: 250V/7A.
Product Weight: 135±5g.
Operation Temperature/Humidity: -40°C to +85°C, 5% to 95%RH (no condensation).
Installation Method: Positioning hole installation.
Dimensions: 80mm (width) x 85mm (height) x 25mm (depth).

Usage Features:

Device Preparation: Requires a computer, the E870-E1 device, a network cable, a USB to RS485 converter, and an internet-accessible routing environment.
Cloud Platform Connection:
- Connect the device to power (DC 8-28V) and a network cable to ensure internet access.
- Log in to cloud.ebyte.com, register, and access the Ebyte cloud platform.
- Navigate to "Device Management" -> "Device Model" -> "Add Device Model".
- Select "Ebyte Cloud IO", "Built-in IO", "E870-E1", enter a slave name, save, and confirm to create a device model.
- Go to "Device Instance" -> "Add Device", select the E870-E1 model, enter the device's SN code, and fill in other parameters.
- Restart the device; once the STATE light is solid green, the device is online.
- Use "Device Operation and Maintenance" -> "Online Debugging" to control the device or view data points.
Self-Built Server Connection:
- Connect the device to power and a network cable within the same local area network as the PC.
- Use the host computer to search for the device, configure network and serial port parameters (dynamic IP by default, recommended direct connection to PC under the same router).
- Use "NetAssist" to set up a user server.
- Configure the device as TCP client mode, specifying the server's IP address and port.
- Save parameters and restart the device.
Transparent Transmission:
- Configure channel 1 for TCP/UDP transparent transmission, setting target server parameters (IP address, port).
- Connect the RS485 interface, open a serial port assistant (XCOM) and network debugging assistant (NetAssist) to send and receive transparent data.
MQTT Mode:
- Configure MQTT parameters including ClientID, server address, port, username, password, and topics for publishing and subscribing.
- Supports Alibaba Cloud and Baidu Cloud "Three Elements" for direct server connection, automatically obtaining necessary credentials.
- Supports OneNET and standard MQTT3.1.1 connections.
DO Output: Two-way A-type relay outputs (NO1, NO2, COM1, COM2) for switching AC 250V/7A and DC 30V/7A. Supports active reporting based on configuration changes, periodic reports (1-65535 minutes), or a combination.
DI Input: Four-way dry contact acquisition. Supports active reporting based on configuration changes, periodic reports (1-65535 minutes), or a combination.
AI Input: Two-channel current signal acquisition (0-20mA/4-20mA) with high-resolution ADC and 3‰ accuracy. Supports Modbus RTU commands for reading current signals (integer and floating point).
Registration Packet: In transparent transmission mode, the device can send a registration packet (MAC, FW version, or custom data up to 128Bit ASCII) to the server upon connection or as a header for data packets.
Heartbeat Packet: In transparent transmission mode, the device can send heartbeat packets (MAC, FW version, or custom data up to 128Bit ASCII) to maintain connection with the server during idle periods.

Maintenance Features:

Firmware Upgrade:
- Network Upgrade: Use the host computer's "Device Upgrade Assistant" to select the network card connected to the device, choose the firmware file from the official website, search for the device, and initiate the upgrade.
- Serial Port Upgrade: Connect the device via USB to RS-485, open the host computer's "Serial port upgrade assistant", select the serial port, import the firmware file, and start the upgrade. During the upgrade, disconnect power, press and hold the "Reload" button, then reapply power.
Restore to Factory Default: After powering on, press and hold the "Reload" button for 5-10 seconds until the STATE LED flashes rapidly. Releasing the button will restore the device to factory default parameters and automatically restart.
LED Indicators:
- PWR (Red): Power indicator.
- STATE (Green): Blinking slowly indicates connecting to the server; fast blinking indicates waiting for network cable or dynamic IP acquisition; steady on indicates server connection.
- DATA (Yellow): Blinking indicates server interaction with serial port data.
- During firmware upgrade, STATE and TX/RX LEDs flash alternately (slowly during upgrade, rapidly when waiting for upgrade package).

The E870-E1 is a robust and versatile gateway designed to facilitate seamless communication between industrial equipment and cloud services, offering extensive configuration options and reliable performance.