UTEK UT-620 Network Converter User Manual

: June 6, 2024
: UTEK

Your Reliable Partner in Industrial IoT
TCP/IP⇄ RS-232
RS-485/422 Network Converter

Product manual
MODEL: UT-620

UK TECHNOLOGY (SHENZHEN) CO., LTD.
Add: Floor 8-10, Building 7, Skyworth Innovation Valley, No. 8, Tangtou No.1
Road, Shiyan Street, Shiyan Old Street, Bao ‘a District, Shenzhen
Tel：+86-755-81202008
Fax：+86-755-27886083
Http：www.uotek.com

Learn about UT-620

Introduction

UT-620 is a communication interface converter for data conversion between TCP/IP and RS-232/422/485, which is widely used in industrial control, access control systems, time and attendance systems, food vending systems, POS systems, building automation systems, power system, monitoring, and data acquisition system, self-service banking system, etc. The built-in RTOS (Real- Time Operating System) and the complete TCP/IP communication protocol make the UT-620 not only provide a reliable and stable operating platform but also enable the original system to be easily and quickly managed remotely via the Internet.

Main Function

TCP/UDP server/client
UT-620 provides 4 types of connection methods: TCP server, UDP server, TCP client, and UDP client, users can choose any method to match their devices.
DHCP (Dynamic Host Configuration Protocol)
Client
This function allows the UT-620 to obtain its IP address through the DHCP server (Gateway) and assign IP address through the internal network server to avoid IP address conflict.
PPP Over Ethernet
The PPPoE protocol allows the UT-620 to connect directly to an ADSL Modem after dial-up and to the Internet.
Dynamic DNS Dynamic Domain Name System
With the UT-620’s built-in DNS function, users can obtain a fixed domain name and assign it to any dynamic IP address, so that the monitor can be managed directly via the Internet without any fixed IP.
Auto-detection 10/100Mbps
UT-620 can automatically detect 10/100Mbps network environment without manual switching.
Built-in network management system
This function allows users to set up or upgrade UT-620 software through IE, Netscape and other browsers without the need to install additional drivers or management software.
Data backup and restore settings
This function allows users to backup and restores system settings, and the backup files are specially encrypted to ensure data security.

Hardware definition and initial settings

Hardware Definition

RS-232 interface definition: DB9 male

(DB9 male)	Definition	Data Direction
PIN1	DCD	IN
PIN2	RDX	IN
PIN3	TXD	OUT
PIN4	DR	OUT
PIN5	GND	–
PIN6	DSR	IN
PIN7	RTS	OUT
PINS	CTS	IN
PIN9	RI	IN

RS-422/485 pin definition: 4-position terminal block

Terminal No(From left)	1	2	3	4
RS-422	T/R+	T/R-	RXD+	RDX-
RS-485	485+	485-	–	–

10/100M Ethernet connection
UT-620 Ethernet port connects to the switch or HUB with a direct connection cable as shown in Figure 1 UT-620 adopts a 1-to-1 connection cable to connect the switch or HUB with a large network port as shown in Figure 1

UTEK UT 620 Network Converter - UT-62 0

The UT-620 connects to the PC network card with a large network port using a cross-connector cable as shown in Figure 2.

UTEK UT 620 Network Converter - PC LAN Card

Power supply:

The UT-620 TCP/IP converter can be powered by the supplied 9V power adapter, or from other DC power supplies or devices, with a supply voltage of +9 to +48V and a current of 500 to 100mA.

LED status description
NET—Indicates whether the Ethernet connection is established or not, yellow light indicates establishment, no light on vice versa.
TXD—Green light flashes to indicate that data is being sent.
RDX — The yellow light flashes to indicate that data is being received.
PWR — Power indication, red when power is on.
UT-620 initial setpoint
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The user should set the IP address of his computer to the following state before starting to use the UT-620:
IP Address:192.168.168.1 – 192.168.168.254 range Subnet mask:255.255.255.0 The default IP address of the UT-620 is 192.168.168.125 The default IP address of the UT-620 is 192.168.168.125, (the IP address of the computer cannot be set to this IP address, otherwise it cannot be set properly). This allows the user’s computer to be connected to the UT-620 (the user’s computer must have a network interface and TCP/IP protocol installed). If the user uses a PC to connect directly to the UT-620, a jumper cable must be used, as shown in Figure 2: If the connection is made through a Hub/Switch, a standard Ethernet cable is used, as shown in Figure 1. After completing the above settings, connect the UT-620 network converter to a hub (HUB) and power it up. On any computer with Windows 98, WIN2000, or Windows XP operating system installed in the LAN, users can install the Vir_COM_2KXP-setup or Vir_COM_98-setup application on the CD that comes with the UT-620. -setup application, the file path is Driver\UT-620\Vir_com_2KXP-Setup or Vir_COM_98-setup The package contains the virtual serial port application and IP-Search application, after the installation is complete, [the software version number is (2.5.7)] in the Start program VirCOM menu Click on the VSport.exe program name, enter the program as follows.

In the program Tool (T) menu to run IP-Search, IP address settings into the program as follows, Click the IP Refresh execution key, a Searcher window will appear, and then click the Refresh button will automatically search for the address of the converter and displayed in the list, the factory IP address of the converter is set to 192.168.168.125, the subnet mask is 255.255.255.0, the port number is 50000.

Point the mouse to the address set in the list, double-click the address to directly enter the IE browser for parameter setting mode. Set mode, end the program, and press EXIT.

The following figure shows the successful login to the converter settings page, the user name and password admin of the factory converter, user name and password (both lowercase) press OK to enter the settings page directly.

Users can use the One PageQuick setup page to quickly configure the UT-620

UT-620 system setting

Operation Mode Setup (TCP Server) This section describes how to set up the UT-620 through the user’s network system.

The working mode and port number setting of the converter, there are four working modes of the converter:

“TCP SERVER, TCP CLIENT, UDP CLIENT dynamic IP client, and UDP SERVER dynamic IP server. Enter the listening port number of the converter in the “Data port number setting”.

TCP Server
Listen to Port Number: Default value 50000, range 0 to 65535 If your device is using TCP/IP protocol for data transmission via remote command driver, you must set the converter to TCP SERVER and must set LISTEN to PORT NUMBER to the same value as the monitor side. Dull disconnect time (seconds): default value 100, range 0 to 32768 When you want to keep the connection of both ends at any time, you must set this value to 0, otherwise the converter will automatically cut off the connection when there is no data transmission on the line for more than the set time. To ensure the security of the data, users can set a password to control, when the data is transmitted before the correct password must be entered to obtain permission before proceeding to the next step.
TCP Client
Remote connection port number: default: 50000, range: 0 ~ 65535
Remote host IP Address: default 0.0.0.0
If your device is using TCP/IP protocol to report live status to a host, you must set the converter to TCP CLIENT and must make sure the port values are the same on both sides, and must enter the IP ADDRESS of the remote host correctly.
UDP Server
Listen Port Number, default 50000, range 0~ 65535
If your device is using UDP protocol for data transmission via remote command driver, you must set the UT-620 as UDPSERVER and set the LISTEN PORT NUMBER to the same value as the monitor side.
UDP Client
Remote connection port number: default value 50000, range 0 to 65535 Remote IP Address: default 0.0.0.0
If your device is using UDP protocol to report live status to a host, you must set the UT-620 to TCP CLIENT and must make sure the port values are the same on both sides, and must enter the IP address of the remote host correctly.

IP Setting

UT-620 provides 3 kinds of IP connection modes: Fixed IP, DHCP, and PPPoE. You can select the suitable operation mode according to your usage in the drop- down menu, and the data to be entered will appear automatically in the field below after selection (the default value is Fixed IP)

Fixed (static) IP
IP address setting for network communication of the converter
Converter IP Address: default value 192.168.168.125
Subnet mask: default value 255.255.255.0
Gateway address Gateway: default value 0.0.0.0
Master Primary DNS: Default value 168.95.1.1
If you are using a fixed IP to connect to your network, please follow these steps.
Step 1: Enter the IP address
Step 2: Enter the Subnet mask
Step 3: Enter the Gateway IP address
Step 4: Enter the Primary DNS IP address
Step 5: Press “Apply” to confirm the setting
Dynamic DHCP
Host Name (Optional): The default value is UT-620, maximum of 15 characters if there is a DHCP host in your UTEK TECHNOLOGYnetwork environment or you use CABLE DSL service, you must enter your DHCP hostname and obtain a dynamic IP address by it.

Note1: If you are using the CABLE DSL service, you must also change the MAC ADDRESS of the UT-620 to be the same as the system operator registration value.

PPPoE
User name: up to 47 characters
Password: up to 35 characters
Server name (optional): up to 47 characters
Idle disconnect time (seconds): default value 0, range 0 to 4294967295
PPPoE (fixed IP style): default DISABLE
If you use a dial-up ADSL connection, you must enter the user name and password provided by the ISP system operator (some system operators must additionally require the server name)
If you want to keep the dial-up connection at any time, you must set the idle disconnect time to 0.
Otherwise, the UT-620 will automatically stop the dial-up connection when there is no data transmission on the line for longer than your set value.
If you are applying for a fixed IP dial-up service, you must set PPPoE with Fix IP Address to ENABLE and enter the IP ADDRESS provided by the system operator.

RS-232/422/485 Interface Setting

UT-620 supports three serial transmission formats: RS-232, RS422, and RS485. In the drop-down menu, you can select the appropriate transmission operation mode according to your usage, and the data to be input will appear automatically in the field below after selection (the default is fixed RS-232)

RS-232
Baud Rate: default 19200, range 1200 to 230.4Kbps
Data Bits: 8 (default) 5,6,7
Parity Check: None(default), even, odd, mark, space
Stop Bits:1(default),2
Flow Control:None(default), CTS/RTS(hardware setting), XON/XOFF(software setting) XON/XOFF (software setting)
Force Packet Transmit Time(ms): default 100， range 20~ 65535
(The timing of transmitting an Ethernet packet, in order to get the whole data in one packet, you can tune this setting value to fit the data length of your device per trans mission. The more small value be set will get fewer data in one packet).
RS-422
The setting content is the same as RS-232.
RS-485
RS-485 transmission delay time (μs): default ‘0’, range 0 ~ 65535
Because different devices have different serial port processing capacities, you must set this value so that the UT-620 reduces the processing speed to match devices with different response speeds.

Dynamic DNS

UT-620 provides a Dynamic Domain Name System (DDNS) function, DDNS enables you to correspond a dynamic IP ADDRESS to a fixed domain name, this powerful function enables you to control remotely through WAN without fixed IP ADDRESS. Before you can use this feature, you must complete registration at one of the two system service provider websites listed below: www.dyndns.org and www.tzo.com. If you choose DynDNS then please select DynDNS from the drop-down menu, or TZO if TZO and the fields below will automatically list what you have entered once you have made your selection.
Note: Only TZO provides this service in mainland China, while DynDNS does not.

Dyndns.org
User name: up to 31 characters
Password: up to 31 characters
Device DNS account: up to 47 characters
Enter User Name, Password, and Device DNS Name to register IP Address: The preset status is disabled, if DDNS is started, the registered IP status is displayed: the online status with DNS Server is displayed.
TZO
Email account: Enter the registered e-mail, the maximum number of characters you can enter is 47.
Password: Enter the registered password, a maximum of 31 characters.
Device DNS account: enter the account number obtained after registration, the maximum input 47 characters to lose the Email Address. Password Key, Device DNS Name registered IP Address: the preset state is disabled if the DDNS starts that the registered IP state: display the online status with DNS Server.

UT-620 system management setting

This section describes the system settings and how to perform software upgrades.

System Manager Setting

Block standard HTTP Port (80) management: default value UNBLOCK If for some reason HTTP (80) services are blocked in your network environment and cause the inability to manage and set UT-620, you must set this option to BLOCK so that port 8080 replaces standard port 80.So you have to enter:http://192.168.168.125:8080 in your browser to get to the administration screen.

System management IP ADDRESS: default 192.168.200.200
If you forget the IP address of the UT-620, you can use this administrator IP to connect to the UT-620 and find out your original IP Address.

If you are using DHCP or PPPoE to obtain a dynamic IP, you can also use this method to find out the IP ADDRESS currently used by the UT-620.
Note: If you have lost your set IP and administrator IP, please use the IP Search tool provided in the virtual software included with the product to find the correct
IP ADDRESS.
Device name; default value UT-620, enter the registered password, maximum 15 characters, this is used to
describe the identification UT-620
Device location: up to 15 characters can be entered to note the location of the UT-620

Manager Password：
User name: default value admin
Password: Default value admin
To ensure the security of the UT-620, enter the correct user name and system password when logging into the WEB management system.
User Name: Enter the user name of your choice.
Password: For security reasons, please enter a new administrative password to replace the default.
Password Confirm: Enter a new password again to confirm
Blocking Ping request: default value UNBLOCK
To prevent hackers from invading your network system, you can set this function to BLOCK ping requests from the network, so that the intruders cannot learn your IP Address
MAC Address Change
The MAC address of the UT-620 can be changed under special circumstances when necessary. For example, some ISP users will be asked to enter the registered MAC ADDRESS when they change their Internet access devices, so they can make use of this function to achieve the following.
Restore the factory default value
Restore the IP address by pressing “FACTORY DEFAULT”, then press OK to refresh the IP address.
The IP address after restoring the factory default is: 192.168.168.125 The port number is: 50000
Note: If not necessary, please do not restore the factory default values.
System reboot
Press “REBOOT” if you want to reboot the system without changing other settings, so the UT-620 will reboot.

System Status

Product name: UT-620

Software version: The software version number currently used by the system.
System startup time: Show the time elapsed from system startup to now
Administrator IP Address: The administrator IP set now
Network status: UT-620’s current IP type, MAC address, IP address, subnet mask, default gateway IP address,
primary DNS IP address and current connection status.
Serial interface status: the current setting status of the UT-620 serial interface
Record: the total amount of data received and transmitted at the network side and the serial port side

Backup and Restore

This function provides users to backup and restores the system setting status of the UT-620.

Backup： Press “Backup” and save the current system settings as a backup file on your hard drive.
Restore: Enter the path of the current backup file or press the Browse key to find it, and press “Restore” to restore the system when finished.
Note: The extension of the backup file must be “.cfg”

Software Upgrade
This function allows you to upgrade the latest software data to your original UT-620. Before you can do this, you must download the latest version from our website and store it on your PC.

Browse: Enter the path of the upgrade file on your PC or press the Browse button to find it
Upgrade: After completing the above steps, press “UPGRADE” to upgrade.
Note: During the upgrade process, you must ensure the stability of the power supply, otherwise it will cause irreparable errors, and upgrading software from different products to other products will also cause serious damage.

PING

This function allows you to test the interconnectivity of the UT-620 or with other network workstations

Send IP Address: The current IP of the UT-620 (Read-Only).
Destination IP Address: Enter the IP ADDRESS you want to PING.
Number of packets: Enter the number of packets you want to transmit; the maximum value is 4 Packet Size: Enter the packet size you want to transmit; the maximum is 1400
Ping result: show the number of times you ping and the number of times the other party received (Read-Only)

Virtual serial port applications

Virtual Serial Application Features Overview：
The virtual serial application is mainly used to generate several virtual serial ports on the control host PC as needed. The virtual serial port generated by using this virtual serial driver has exactly the same setup interface as the pure hardware serial port (COM1, COM2) that the PC has on its own (COM1, COM2), which means that the programs that can run on the pure hardware serial port (COM1, COM2) using this The virtual serial port generated by the virtual serial port program can also run normally.
UT-620 series converter provides transparent conversion from TCP/IP to the serial port. The data received from the serial interface of the converter will be transparently transmitted to the network, and the data received from the network can also be transparently sent to the serial port of the converter.
Vir-COM mainly provides the function of mapping management and data forwarding from serial ports of UT-620 converters to virtual serial ports. After generating several virtual serial ports on your platform PC through the virtual serial port driver, use Vir-COM to map one or more UT-620 converter serial ports to the specified virtual serial port, and then start the Vir-COM forwarding function, then you can communicate with remote field devices through the virtual serial port. You can then communicate with remote field devices through the virtual serial port.

Virtual serial port driver and Vir-COM runtime environment

The virtual serial port driver and Vir-COM can run in the following environments: Windows 98, Windows 2000, Windows XP.

Installation and uninstallation of the virtual serial port driver
1 Installation: Run Vir-COM-982KXP-setup.exe to complete the installation of the virtual serial port driver.
2 Uninstall: Uninstall Vircom through the Add or Remove Programs option in Windows Control Panel.

How to use Vir-COM

Open Vir-COM on the desktop of your computer and enter the virtual serial port application interface as follows.

In the sport (2.5.7) virtual serial port application interface, there are four menus in the program menu: file; tool; system; and exit. Open in the tool file menu only contains In the IP-Search item, the IP-Search tool can be used to easily find the IP address of the connected UT-620. This is very useful when connecting multiple UT-620s or when you cannot remember the set IP address. Introduce how to use the IP-Search tool to find the IP address of UT-620.
First, follow the 10/100M Ethernet connection; connect the UT-620, click the VSport.exe program name on the Start program Vir-COM menu, enter the virtual serial application interface, click the IP-Search tool menu, enter the search IP address window, and then click the Refresh button to Refresh, the interface will appear as shown below.
From left to right are the device name, device location, device model, IP address, subnet mask, gateway, management IP, and MAC address, users can double click the UT-620 option to directly enter the IE browser for UT-620 configuration, or click the UT-620 option, the IP address, subnet mask, gateway and MAC address of the UT-620 will appear in the box at the bottom right of the interface. The IP address, subnet mask, gateway, and MAC address of the UT-620 will appear in the box on the bottom right of the interface, users can change the IP address of the UT-620 directly, and press the Alter button to complete the current IP address setting. Press the Alter button to complete the current IP address setting. If you want to know the IP address that has been changed, click the Refresh button, and the modified IP address will appear on the top.

To finish IP-Search, press the Exit button.

Create a virtual serial port
After users finish setting the IP address and serial parameters of UT-620, they can create a virtual serial port to run the original application without changing the software, select the serial port number you need to range from COM1-COM99; then click Create button in VSport (2.5.7) virtual serial port application interface, the following interface appears.

New serial port name (COM Name): the range is COM1-COM99
IP Address of UT-620: user settings, such as using the default IP address of UT-620
Address is 192.168.168.125
Port: default 50000, range 0 ~ 65535

Parameter setting of the virtual serial port
Baud Rate： default 19200， range 1200 ~ 230.4Kbps
Data Bits：0(default）
Parity Check：None(default），even,odd,mark,space
Stop Bits：1（default），2
Note: If on the Fly is ticked you don’t need to modify the baud rate, data bits, parity bits, stop bits. After completing the parent set, set the IP address and port number to be created, and then click the ADD button, an OK window will appear when the increase is successful, and an error window will appear if it is unsuccessful.
The reasons for unsuccessful creation may be (1) the IP address may be set incorrectly; 2) or the port UK TECHNOLOGY

number is not the same; 3) the network cable is not working) after the IP address is added successfully and then press Create, the successful creation will show the serial port number you created in the serial port display area. The following figure.

After it is created, it will display COM3, IP address and port number. If you cancel the virtual serial port, click Delete. If you need to create multiple virtual serial ports, you only need to create a new virtual serial port and follow the above steps to create it.

Troubleshooting instruction

Q: When you plug in the UT-620 power source, the LED does not light up
A: Make sure you connect the UT-620 to the proper power source and check all the wiring connections; if the LED still does not light up, you may have a hardware problem and you should contact your supplier.
Q: Unable to read UT-620 via Ethernet
A: Check the connection cable between the UT-620 and your computer or HUB, ping the UT-620 from the computer side to make sure your computer’s NIC is installed and fully functional.
Q: Can’t ping to any computer in the regional network?
A: If the 10/100M LED is not lit, check the connection cable between the UT-620 and the computer to make sure the UT-620’s subnet mask and IP address are in the same network range as the computer’s.
Q: Cannot read the device data from the serial port through UT-620
A: Check the RS-232/422/485 connection cable between the UT-620 and your device, and make sure the parameters of the serial port set by the UT-620 are the same as the parameters of the serial port of your device.
Q: Unable to search the IP address of UT-620
A: You can use the administrator IP address to set, first change the IP address of the master to 192.168.200.
XXX, then open IE browser to fill in 192.168.200.200 and press enter, enter the web login window, enter the user name and password, admin (user name and password are lowercase) and press enter to enter, open the window to set the user name and password.
Press the “FACTORY DEFAULT” button as shown below, then press OK, the system will prompt you to wait for 10 seconds, then you can close Internet Explorer. Open the IP search tool in Vsport to refresh the IP address, restore the factory defaults after the IP address is: 192.168.168.125 Port number is: 50000, restore it to the general settings.

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