Ebyte NA111 User manual

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
1
Serial ⇌Ethernet
Serial server
NA111

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
1
Contents
Disclaimer.............................................................................................................................................. 1
1. Introduction to the product.................................................................................................................2
2. Get started quickly..............................................................................................................................3
2.1 Use preparation.........................................................................................................................3
2.2 The device is wired...................................................................................................................3
2.3 Software settings...................................................................................................................... 4
2.3.1 The network test environment....................................................................................... 4
2.3.2 The default parameter....................................................................................................4
2.3.3 Data transfer test............................................................................................................5
3. Product overview................................................................................................................................7
3.1 Product specifications...............................................................................................................7
3.2 Technical parameters................................................................................................................ 8
3.3 THE LED DESCRIPTION...................................................................................................... 9
3.4 Dimensions.............................................................................................................................10
3.5 How it is installed...................................................................................................................10
4. Product features................................................................................................................................ 11
4.1 Introduction to the basic features........................................................................................... 11
4.1.1 Web configuration....................................................................................................... 11
4.1.2 Subnet mask/IP address............................................................................................... 11
4.1.3 DNS server address..................................................................................................... 12
4.1.4 Restore factory settings............................................................................................... 12
4.2 Socket features....................................................................................................................... 13
4.2.1 TCP Server mode.........................................................................................................13
4.2.2 TCP Client mode......................................................................................................... 14
4.2.3 UDP Server mode........................................................................................................15
4.2.4 UDP Client mode........................................................................................................ 15
4.3 Serial function........................................................................................................................ 15
4.3.1 Serial basic parameters................................................................................................15
4.3.2 Serial data is sent and received....................................................................................16
4.4 Advanced features.................................................................................................................. 17
4.4.1 Heartbeat package function......................................................................................... 17
4.4.2 Register the package feature........................................................................................17
4.4.3 Short connection..........................................................................................................18
4.4.4 Time-out restart function............................................................................................. 18
4.4.5 Cache cleanup..............................................................................................................18
4.4.6 Disconnected restart function......................................................................................19
4.4.7 Remote upgrade...........................................................................................................19
4.5 Modbus gateway features.......................................................................................................20
4.5.1 Simple protocol conversion mode...............................................................................21
4.5.2 Multi-host mode.......................................................................................................... 21
4.5.3 Storage gateway.......................................................................................................... 22
4.5.4 Configurable gateway..................................................................................................23

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
1
5. How it is configured......................................................................................................................... 25
5.1 Web settings............................................................................................................................25
5.2 Configure tool software settings.............................................................................................25
5.3 AT instruction configuration...................................................................................................26
6. Revise history................................................................................................................................... 27
7. About us............................................................................................................................................28

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
1
Disclaimer
EBYTE reserves all rights to this document and the information contained herein.
Products, names, logos and designs described herein may in whole or in part be
subject to intellectual property rights. Reproduction, use, modification or disclosure to
third parties of this document or any part thereof without the express permission of
EBYTE is strictly prohibited.
The information contained herein is provided “as is” and EBYTE assumes no
liability for the use of the information. No warranty, either express or implied, is given,
including but not limited, with respect to the accuracy, correctness, reliability and
fitness for a particular purpose of the information. This document may be revised by
EBYTE at any time. For most recent documents, visit www.ebyte.com.

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
2
1. Introduction to the product
NA111 is a serial-port server that implements serial data ⇌Ethernet data conversion.
The product comes with an RJ45 interface and is rail mounted. With a variety of Modbus
gateway modes, it can meet the networking functions of various serial devices/PLC.
Features
RJ45 Adaptive Ethernet Interface;
Support for multiple modes of operation (TCP Server, TCP Client, UDP Server, UDP Client);
Support web settings, configuration tool settings, AT instruction settings parameters;
Support for multiple Socket connections;
Serial port rate support 1200 to 230400 (default 115200);
Support for multiple checks (None, Odd, Even, Mark, Space);
Support DHCP function;
Support DNS function, domain name resolution;
DNS server address customization;
Support for a variety of Modbus gateways (simple protocol conversion, multi-host mode, storage
gateway, configurable gateway);
Support for virtual serial port;
Support time-out restart function, restart time customization;
Supports short connection function, short connection interval customization;
Support heartbeat package, registration package function;
Support cache cleanup function;
Support access to the extranet, local area network;
Supports hardware recovery factory settings;
Support for online upgrades.

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
3
2. Get started quickly
If there is a problem during use, click on the official website
link:https://www.ebyte.com/product-class.aspx
2.1 Use preparation
Before using serial port server (hereinafter referred to as "device"), it is necessary to prepare
network cable, computer, USB serial port converter and other related accessories. Here's how:
Table 2 - 1 Material sheet
serial
number
Device tools
quantity
1
equipment
1
2
Cable
1
3
Computer
1
4
USB serial converter
1
2.2 The device is wired
Test serial-to-network data communication and connect the RS485 pin of the device to the PC
end via a USB serial converter.
Use a network cable to connect the device's gateway (RJ45) to the PC's gate.
The connection diagram looks like this:
Figure 2- 1 PC connection diagram

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
4
2.3 Software settings
2.3.1 The network test environment
Avoid server search failures (pings don't work) and problems with customers not being able to
open web pages during real-world applications. Check the computer for the relevant settings first.
（1）Turn off your computer's firewall and antivirus software.
（2）Configure the network card that is connected to the device.
（3）For PC direct serial port servers, you need to set up a static computer and maintain the
same network segment as the device.
Figure 2 - 2 PC local connection settings
2.3.2 The default parameter
Table 2 - 2 default parameters
project
The default parameter
IP address
192.168.3.7
The default local port
8887
Subnet mask
255.255.255.0
The default gateway
192.168.3.1
The default mode of
operation
TCP Server
The default target IP
192.168.3.3
The default destination
port
8888
Serial port rate
115200
Serial parameters
None / 8 / 1

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
5
2.3.3 Data transfer test
After the above steps, follow the device factory default parameters, do the following, to achieve
data transmission testing.
Here's how:
（1）Open the test TCP/IP debugging assistant software.
（2）The network settings area selects the TCP client mode, which corresponds to the server
IP address (module default target IP: 192.168.3.3). The server port number corresponds to the
module setting port 8887 (module default port: 8887), click Create.
（3）Wait for the computer to connect to the serial server, the connection is complete after the
serial server M0 (green LED lit).
Figure 2- 3 Gate parameter configuration
（4）Open serial assistant, serial port rate is set to 115200, serial parameters are set to
None/8/1, click on open, open serial port.

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
6
Figure 2- 4 Serial parameter configuration
（5）Data transmission testing, serial assistant (serial port side) to send test data, network
debugging assistant (network side) received test data. The network debugging assistant (network side)
sends test data, and the serial assistant (serial port side) receives the test data. Duplex communication
(i.e. local-to-network two-way data transceivers).
Figure 2- 5 Send tests

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
7
3. Product overview
3.1 Product specifications
Table 3 - 1 Specification Table
Product model
The type of
product
Socket
The
number of
connections
The working
mode
Operating voltage
Product size
（mm）
NS1
Patch module
6 way
TCP Sever
TCP Client
UDP Sever
UDP Client
3.0～5.5V(DC)
17*19*4
NT1
Plug in the
module
directly
6 way
3.0～5.5V(DC)
35 * 22 * 30
NT1-B
Plug in the
module
directly
6 way
3.0～5.5V(DC)
35 * 22 * 20
NA111
DTU
6 way
8～28V(DC)
92 * 66 * 30
NA111-A
85～265V(AC)

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
8
3.2 Technical parameters
Table 3 - 2 Device parameters
project
illustrate
Operating voltage
DC 8 to 28V
interface
Serial (RS485), Netport (RJ45)
The working mode
TCP Server、TCP Client、UDP Server、UDP
Client（默认 TCP Server）
Socket connection
Supports 6 ways
Network protocols
IP、TCP/UDP、IPv4
How IP is obtained
DHCP, static IP (default static IP)
Domain name
resolution
backing
How it is
configured
Web, configuration tools, AT instructions
IP address
Customizable (default 192.168.3.7)
The local port
Customizable (default 8887)
Subnet mask
255.255.255.0
gateway
Customizable (default 192.168.3.1)
Target IP
Customizable (default 192.168.3.3)
The destination
port
Customizable (default 8888)
Network cache
512 Byte
Serial cache
512 Byte
The packaging
mechanism
512 Byte
Serial port rate
1200 to 230400 bps (default 115200)
The data bit
5, 6, 7, 8 (default 8)
Stop bit
1, 2 (default 1)
Check bits
None、Odd、Even、Mark、Space（default
None）
Flow control
RTS/CTS、DSR/DTR、XON/XOFF、NONE
(Default NOW)
Product size
92 mm x 66mm x 30mm (long x wide x high)
The weight of the
product
81g ± 5g
Operating
temperature and
humidity
-40 to .85 degrees C, 5% to 95% RH (no
condensation)
Store temperature
and humidity
-40 to .105 degrees C, 5% to 95% RH (no
condensation)

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
9
3.3 THE LED DESCRIPTION
Figure 3- 1 LED
Table 3- 3 LED function table
serial
numb
er
name
function
illustrate
1
PWR
Power LED
Power on: The light is always on.
Power off: The light goes out.
2
TXD
Serial send
light
Data sent: Light on.
No data sent: Lights off.
3
RXD
Serial
reception
indicator
Data sent: Light on.
No data sent: Lights off.
4
M0
Link light
TCP mode: network connection, light
on. The network is down and the lights
are off.
UDP mode: The LIGHT is always on.
5
M1
STATE
indicator
The network cable is connected and
the light is always on.
The network cable is disconnected and
the light goes out.
Note: PWR, TXD, RXD, M0 all light up when the network cable is not connected, M1 off.

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
10
3.4 Dimensions
Figure 3 - 2 Dimensions
3.5 How it is installed
The equipment is mounted by rail.
Figure 3- 3 Rail installation

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
11
4. Product features
4.1 Introduction to the basic features
4.1.1 Web configuration
The device has a built-in web server, which makes it easy for users to set and query parameters
through the web page.
The port of the Web server is customizable, default: 80
How to do this:
Open the browser, address bar input device IP address, example 192.168.3.7 (IP address
and computer need to maintain the same network segment), forget the native IP can be
queried through AT instructions and configuration software.
The main screen pops up to query the settings.
It can also be opened by configuring the software's open web page configuration button.
Note: If you modify the port number, the address input bar to add the port number, for example,
modify the page access port is 8080, the connection page configuration needs to enter
192.168.3.7:8080 in the address bar.
4.1.2 Subnet mask/IP address
IP address is the module's identification in the local area network, in the local area network has
uniqueness. Therefore, it cannot be duplicated with other devices on the same LAN. The IP addresses
of the modules are static IP and DHCP.
（1）Static IP: Static IP is required for the user to manually set, the setup process notes to write IP,
subnet mask and gateway, static IP is suitable for the need to count IP and devices and to
correspond to the scene.
Advantages: Access to the devices that can not assign IP addresses can be searched through the
network segment broadcast mode, convenient unified management;
Cons: Different LAN intranet segments are different, resulting in no normal TCP/UDP
communication.
（2）Dynamic DHCP :D HCP primarily takes the role of obtaining information such as IP address,
gateway address, DNS server address, etc. dynamically from the gateway host, thus eliminating

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
12
the tedious step of setting IP address. Suitable for scenarios where there is no requirement for IP,
nor is ip required to correspond to module one by one.
Pros: Devices with DHCP Server, such as access routers, can communicate directly, reducing
the hassle of setting up IP address gateways and subnet masks.
Cons: Access to a DHCP Serve-free network, such as directly connected to a computer, the
module will not work properly.
Subnet masks are mainly used to determine the network number and host number of IP
addresses, indicating the number of subnets and determining whether the module is a flag within the
subnet.
Subnet mask must be set, we commonly use class C subnet mask: 255.255.255.0, network
number is the first 24 bits, host number is the last 8 bits, the number of subnets is 255, module IP in
the range of 255, the module IP is considered in this subnet.
A gateway is the network number of the network on which the module's current IP address is
located. If you connect to a device such as a router when you connect to an external network, the
gateway is the route.
4.1.3 DNS server address
DNS servers are primarily used to convert domain names to NETWORK-recognized IP
addresses. DNS server addresses are customizable and enable domain name resolution in cases
where the local domain name server is abnormal. The device reports resolution requests to a custom
DNS server when the domain name is resolved, making it easy and efficient to use.
In DHCP mode, DNS server addresses are automatically acquired and cannot be modified.
In static IP mode, the DNS server factory address defaults to 114.114.114.114.
4.1.4 Restore factory settings
The device's Restore pin is pressed continuously for about 5 seconds until the device restarts
and the device is restarted and the factory settings are restored.
The following table parameters are modified to factory default parameters when factory settings
are restored.
Table 4- 1 partial factory default parameters
project
The default parameter
IP address
192.168.3.7
The default local port
8887

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
13
Subnet mask
255.255.255.0
The default gateway
192.168.3.1
The default mode of
operation
TCP Server
The default target IP
192.168.3.3
The default destination
port
8888
Serial port rate
115200
Serial parameters
None / 8 / 1
Heartbeat pack cycle
0
Time-out restart
300
Short connection
Shut down
The connection emptyes
the cache
enable
Register the package
Shut down
Modbus gateway
Shut down
Note: User-defined configurations are formatted, and only some of the parameters are listed in
the table above.
4.2 Socket features
4.2.1 TCP Server mode
TCP Server is the TCP server. In TCP Server mode, the device listens to the native port, accepts
the client's connection request, and establishes a connection for data communication. When the
Modbus feature is turned off, when the device serial port receives serial data, it is sent to all client
devices connected to the device at the same time, supporting connections of up to 6 clients.
Typically used for communication with TCP clients within a local area network.

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
14
Figure 4-1 Server Mode Schematic
4.2.2 TCP Client mode
TCP Client is the TCP client. When the device is working, it initiates a connection request to the
server and establishes a connection for the interaction of serial and server data. According to the TCP
Protocol, TCP Client is a connection and disconnection distinction that ensures a reliable exchange
of data. Typically used for data interaction between devices and servers, it is the most common form
of networked communication.
Setting the service-side mode requires accurate configuration of the destination's IP
address/domain name, target port.
Figure 4- 2 Client mode diagram

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
15
4.2.3 UDP Server mode
UDP Server refers to a device that does not verify the source IP address of the data when
communicating with the UDP protocol, saves the source IP address and source port of the packet
after receiving one UDP packet, and sets it as the target IP and port, so the data sent by the device
sends the packet only to the source IP address and port where the data was received by the last device.
This mode is typically used in scenarios where multiple network devices communicate with the
device and are more frequent and TCP Server cannot meet the criteria.
Note: In UDP mode, the network should send less than 512Bit per package to the device, otherwise
data loss will result.
4.2.4 UDP Client mode
UDP Client is a connectionless transport protocol that provides a simple, unreliable information
delivery service for transactions, with no connection established and disconnected, and only IP and
ports need to be developed to send data to each other. Typically used for data transfer scenarios
where packet drop rates are not required, packets are small and send more frequently, and data is
passed to the specified IP.
In UDP Client mode, the device will only communicate with the target port of the target IP, and
data from other IPs will not be received by the device.
In this mode, the destination address is set to 255.255.255.255, and the sending data will be
broadcast throughout the network segment, but the transceiver device needs to ensure that the port is
consistent and that the device can also receive broadcast data.
4.3 Serial function
4.3.1 Serial basic parameters
The basic parameters of serial port include: baud rate, data bit, stop bit, check bit.
Baud Rate: Serial communication rate, configurable for 1200, 2400, 4800, 9600, 14400, 19200,
38400, 57600, 115200, 230400bps.
Data bits: The length of the data bits, range 5, 6, 7, 8.
Stop bit: You can set the range 1, 2.
Check bit: the check bit of data communication, support None, Odd, Even, Mark, Space five
verification methods by setting serial parameters, to maintain consistent with serial connection

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
16
equipment serial parameters can ensure that the normal.
Figure 4-2 Upper machine serial port parameter configuration
4.3.2 Serial data is sent and received
The serial assistant (serial port side) sends test data, and the network debugging assistant
(network side) receives the test data. The network debugging assistant (network side) sends test data,
and the serial assistant (serial port side) receives the test data. The 485 interface enables half-duplex
communication (i.e. data can be transmitted in both directions of a signal carrier, but not
simultaneously).
Figure 4- 3 Data send and receive diagrams

Chengdu Ebyte Electronic Technology Co.,Ltd. NA111 User Manual
Copyright ©2012–2021，Chengdu Eyrth Electronic Technology Co., Ltd
17
4.4 Advanced features
4.4.1 Heartbeat package function
In network transmission mode, users can choose to send a heartbeat package and customize the
heartbeat package time. Heartbeat pack support network heartbeat package, serial heartbeat package.
Heartbeat package sending mode:
（1）The default is to turn off heartbeat mode.
（2）Serial mode - > device sends heartbeat content to the serial bus at a set heartbeat interval.
（3）Gate mode - > device sends heartbeat content to the gate bus at a set heartbeat interval.
Custom heartbeat content (up to 38 bytes (ASCII) data, 19 bytes (HEX) data)
Custom heartbeat package send interval, set to 0 when the heartbeat package function is turned
off, set value greater than zero then turn on the heartbeat package function, open can set the range:
(1-65536) seconds, the default value is 0.
4.4.2 Register the package feature
In network transmission mode, users can choose to send the registration package and customize
the registration package time.
The registration package supports several modes:
（1）Send MAC address (OLMAC) when the network is connected to the device
（2）Send custom enrollment package data (OLCSTM) when the network is connected to the
device
（3）After the network is connected to the device, each packet of data sent to the network by
the device is preceded by a MAC address (EMBMAC)
（4）Once the network is connected to the device, each package of data sent by the device to
the network is preceded by custom enrollment package data (EMBCSTM)
Custom registration package content (up to 38 bytes (ASCII) data, 18 bytes (HEX) data)
Note: The web page configuration does not work properly using the connection to send MAC
and the connection to send a custom registration package mode.