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Ebyte NA111 User Manual

Ebyte NA111 User Manual

Serial port ethernet serial server
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Chengdu Ebyte Electronic Technology Co., Ltd.
NA111/NA111-A/NA111-M/NA111-E User Manual
Serial Port Ethernet
Serial Server
NA111/NA111-A/NA111-M/NA111-E
Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

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  • Page 1 Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual Serial Port Ethernet Serial Server NA111/NA111-A/NA111-M/NA111-E Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 2: Table Of Contents

    4.4. Advanced parameters ..........................26 4.4.1. Disconnection and reconnection function .................. 26 4.4.2. Timeout restart function .........................27 4.4.3. Short connection function ......................27 4.4.4. Connection emptying cache function ..................27 4.4.5. Heartbeat packet function ......................28 Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 3 4.6.2. Restore factory settings .........................40 4.6.3. AT instruction configuration ......................41 4.6.4. Configuration tool software settings .................... 41 4.6.5. Random native port ........................41 4.6.6. Remote upgrade ..........................41 Revision History ................................. 47 About us ..................................47 Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 4: Product Introduction

    Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual 1. Product Introduction NA111/NA111-A/NA111-E/NA111-M is a serial port server that converts serial port data to Ethernet data; It has multiple Modbus gateway modes and MQTTC/HTTPC Internet of Things gateway modes, which can meet the networking functions of various serial port devices/PLCs;...

  • Page 5: Quick Start

    DC 12V switch power supply USB to RS485 Several cables [Note] This case uses NA111 equipment, and NA111-A only has different power input. 2.2. Equipment wiring NA111、NA111-M、NA111-E power wiring (DC 8~28V,+(positive, red), - (negative, black)): Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 6: Software Settings

    GND of the converter is connected to G of the device (optional). Note: NA111-E supports POE power receiving, and can use POE switches to supply power through network cables. 2.3. Software settings...

  • Page 7: Network Test Environment

    255.255.255.0, and the default gateway is 192.168.3.1. 2.3.2.Default parameters project Default parameters IP address 192.168.3.7 Default local port 8887 Subnet mask 255.255.255.0 Default gateway 192.168.3.1 Default working mode TCP Server Serial baud rate 115200 Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 8: Data Transmission Test

    M0 of the serial port server is always on; （4） Open the serial port assistant, set the serial port baud rate to 115200, set the serial port parameter to 1/8/None, and click to open the serial port; Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 9 (network end) receives the test data. The network debugging assistant (network side) sends the test data, and the serial port assistant (serial port side) receives the test data. Realize duplex communication (i.e. local to network two-way data receiving and sending). Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 10: Product Overview

    TCP Server 6-way 3.0～5.5V(DC) 35×22×30 module NT1-B TCP Client NA111 8～28V(DC) UDP Server 110×66×30 NA111-A UDP Client 85～265V(AC) 6-way MQTT Client NA111-M 8～28V(DC) 93×28×27 HTTP Client NA111-E 8～28V(DC) 110×66×30 NB114 6-way 8～28V(DC) 102×84×25 Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 11: Technical Parameter

    8～28V DC（NA111/NA111-M/NA111-E）/85～265V AC (NA111-A) Serial port (RS485, 3 × 3.81mm Phoenix terminal) Interface Network interface (RJ45), NA111-M supports POE power supply TCP Server (default), TCP Client, UDP Server, UDP Client, HTTP Working mode Client, MQTT Client Socket connection...

  • Page 12: Indicator Description

    The network cable is disconnected: the light is off. [Note] When the network cable is not connected, POWER, TXD, RXD and M0 are all on, M1 is off, and the device is in standby state. 3.3.2. NA111-M Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 13 Data is sent: the red light flashes. the indicator light No data transmission: the light is off. (green) Serial port reception There is data reception: the green light flashes. indicator light No data reception: the light is off. (yellow) Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 14: Mechanical Dimensions

    Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual 3.4. Mechanical dimensions 3.4.1. NA111/NA111-A/NA111-E 3.4.2. NA111-M Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 15: Pin Definition

    The network cable is disconnected and the light is off. Press and hold until the POWER, TXD, RXD and Restore Reset button M0 indicator lights are always on and then release. 10M network port, NA111-E supports POE power RJ45 Network interface supply RS485 RS485 interface A connects to A and B connects to B.

  • Page 16: Na111-M

    Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual NA111/NA111-E: 8-28V DC input, 2 × 5.08mm NA111/NA111-E Power Phoenix terminal. (DC) input NA111-A: 85-265V AC input, 2 × 5.08mm Phoenix NA111-A (AC) terminal. 3.5.2. NA111-M Serial name function explain number Power on: the light is always on.

  • Page 17: Installation Method

    Standard RJ 45 interface, 10M network port 3.6. Installation method 3.6.1. NA111/NA111-A/NA111-E The equipment is installed by guide rail. 3.6.2. NA111-M The equipment shall be installed by guide rail or positioning hole. Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 18 Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 19: Product Function

    IP is within the range of 255, then the module IP is considered to be in the subnet. Gateway refers to the network number of the network where the module's current IP address is located. If the router and other devices are accessed when connecting to the external network, the Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 20: Domain Name Resolution (Dns)

    After the Modbus gateway function is enabled, the non-Modbus data will be cleared and will not be forwarded. Take NA111-M as an example, use the host computer for operation and configuration to establish a connection. Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 21: Tcp Client Mode

    To use the client, you need to configure the IP address/domain name and target port of the target accurately. Take NA111-M as an example, use the host computer for operation and configuration to establish a connection. 4.2.3.UDP server mode UDP Server means that the device does not verify the data source IP address when communicating with UDP protocol.

  • Page 22: Udp Client Mode

    [Note] In UDP mode, the data sent by the network to the device should be less than 512Bit per packet, otherwise it will cause data loss. Take NA111-M as an example, use the host computer for operation and configuration to establish a connection.

  • Page 23: Http Client Mode

    HTTP server resources. Use the HTTP mode of OneNET multi-protocol access to test the HTTP-GET request of the device, as shown in the following figure. (1) Return data configuration with header: Data return test: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 24 Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual (2) Return data configuration without header: Data return test: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 25 NA111/NA111-A/NA111-M/NA111-E User Manual POST Use the HTTP mode of OneNET multi-protocol access to test the HTTP-POST request of the device, as shown in the following figure. (1) Return data configuration with header: Data return test: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 26 Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual (2) Return data configuration without header: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 27: Mqtt Client Mode

    (Qos 0, Qos 1), supports the ultra-long text configuration, and facilitates better access to network service operators (server address, three elements, subscription and publishing address support the configuration of up to 128 characters). Standard MQTT3.1.1 Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 28 The "three elements" described in the standard can be obtained from Tencent server as shown in the following figure: Parameter configuration (upper computer and web page) is described as follows: Configure the corresponding subscription publishing address, and use the platform online debugging to send data for communication test: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 29: Serial Port Parameters

    If the request times out and the set number of reconnections has not been successfully reconnected, the device will restart to prevent the network from being unable to recover after Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 30: Timeout Restart Function

    The serial port receive cache is 1024 bytes, and the data received earlier will be overwritten by more than 1024 bytes. After the network connection is successful, Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 31: Heartbeat Packet Function

    The registration package supports the following modes: （1） Send MAC address when the network establishes a connection with the device （2） Send the data of the custom registration package when the network establishes a connection with the device Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 32: Modbus Gateway

    Simple protocol conversion can work in any mode (TCP client, TCP server, UDP client, UDP server, MQTT client, HTTP client). No matter what mode it works in, there can only be one Modbus master station. Upper computer/web page configuration: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 33 Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual Modbus Poll and Modbus Slave software debugging: Software connection settings: Software register reading and simulation configuration: Poll menu, select SetupRead/Write Definition Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 34 Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual Select SetupSlave Definition from the Slave menu Communication demonstration: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 35: Multi-Host Mode

    6-host connection), and only supports working in the TCP server mode, The slave can only be on the serial port, otherwise it cannot work normally. It is recommended to configure it as "simple protocol conversion" when there is no multi-channel host. Upper computer/web page configuration: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 36 Modbus Poll and Modbus Slave software debugging: Refer to "Simple Protocol Conversion" for software configuration and register configuration. Start multiple Modbus Poll software at the same time (for example, 3 channels can be supported up to 6 channels). Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 37: Storage Gateway

    189 instructions and returned results can be stored); （2） RTU response timeout automatically clears the cache to ensure the real-time and authenticity of data; （3） The polling interval can be customized, 0-65535ms; Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 38 （5） The first command and control command (05, 06, 0F, 10 function code) will directly access RTU equipment; （6） Only 01, 02, 03 and 04 Modbus function code query results can be stored; Storage gateway host computer and web page configuration: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 39: Configurable Gateway

    Modbus slave station. Instruction storage description (add, instruction error and format error cannot be added): Instruction storage description (delete): Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 40: Automatic Upload

    (Modbus RTU format or Modbus TCP format) and the instruction polling interval (0-65535ms) can be selected according to the demand. Refer to "Configurable Gateway - Instruction Storage Description" for instruction pre-storage, and automatically upload the upper computer/web page configuration: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 41 Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual TCP client presentation (Modbus RTU format): Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 42: Introduction To Basic Functions

    Forget that the local IP address can be queried through the AT command and configuration software;  Click Login, the default account is admin, and the default password is admin (entered, you can Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 43: Restore Factory Settings

    You can enter the communication mode by restarting the device or submitting again). 4.6.2.Restore factory settings Press and hold the Restore button of the device until all the LED indicators except M1 are on, and then release the button. Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 44: At Instruction Configuration

    (NA11x series, NB114, NS1, NT1, etc.) support online upgrade. Users can upgrade or replace the current firmware through the upper computer through the upgrade firmware provided by our company. Network upgrade firmware operation steps: Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 45 Step 3: In the pop-up "Device Network Upgrade Assistant" dialog box, click "Search Device" (the computer and device should be in the same network segment), and click "Stop Search" after finding the device; Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 46 Step 4: Click "Select Firmware", select the corresponding firmware, and then click "Open"; Step 5: Select the equipment to be upgraded, click "Upgrade", the progress bar will start to change, and wait for the upgrade to complete. Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 47 Step 2: Open the upper computer, click "Menu", and select "Serial port upgrade assistant"; Step 3: First connect the USB port of the computer, select the corresponding port number in the pop-up "Serial Port Upgrade Assistant" dialog box, and click "Open Serial Port"; Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 48 Step 4: Click "Select Firmware", select the corresponding firmware, and then click "Open"; Step 5: Click "Start upgrading", the progress bar will start to change, and wait for the upgrade to complete. [Note] Power on again to trigger the upgrade. Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 49 Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual Copyright ©2012–2025，Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 50: Revision History

    Chengdu Ebyte Electronic Technology Co., Ltd. NA111/NA111-A/NA111-M/NA111-E User Manual The final interpretation right belongs to Chengdu Ebyte Electronic Technology Co., Ltd. Revision History edition Revision date Revision description Maintainer 2021-06-28 Initial version Product upgrade and 2021-10-22 content revision Match "9013-2-xx"...

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