MetraTec TUC Manuel utilisateur

User Guide

for metraTec TCP/IP to UART Converter (TUC)

Date: March 2 17

Document-Version: 1.6

For Firmware 1.1 and higher

User Guide metraTec TUC Page 1 of 3

Table of Contents
General Information......................................................................................................................4
1 Symbols Used........................................................................................................................4
2 Further Documentation..........................................................................................................4
Configuration via Web-Interface...................................................................................................5
1 Login...................................................................................................................................... 5
2 Network Settings...................................................................................................................6
3 Port Settings..........................................................................................................................6
4 Misc. Settings........................................................................................................................7
5 Applying Settings..................................................................................................................9
TUC Config Manager Software....................................................................................................1 
1 Overview Tab (Network Settings).........................................................................................1 
2 Other Settings.....................................................................................................................11
3 Firmware Update Tab...........................................................................................................12
Control Shell via TCP or UART 1.................................................................................................14
1 GPIO Control.......................................................................................................................14
Appendix: Control Commands....................................................................................................15
1 PING....................................................................................................................................15
2 REV......................................................................................................................................15
3 RHR......................................................................................................................................15
4 RHN..................................................................................................................................... 15
5 SPT [only available via TCP].................................................................................................16
6 WOP [only available via TCP]...............................................................................................16
7 RIP [only available via TCP]..................................................................................................17
8 SIP........................................................................................................................................ 17
9 UART [only available via TCP]..............................................................................................18
1  UPNP................................................................................................................................. 18
11 FLBYTE..............................................................................................................................18
12 SENDTT.............................................................................................................................19
13 KEEPALIVE.........................................................................................................................19
14 CLIENTRIV.........................................................................................................................2 
15 MODE................................................................................................................................2 
16 NAME................................................................................................................................21
17 APPLY.................................................................................................................................21
18 DISCARD........................................................................................................................... 22
19 FACTORY...........................................................................................................................22
2  RESET................................................................................................................................22
User Guide metraTec TUC Page 2 of 3 

21 DUMP................................................................................................................................22
22 CLOSE...............................................................................................................................25
Appendix: Third-Party Copyright Notices...................................................................................26
1 uIP TCP/IP Stack 1. ............................................................................................................26
2 lwIP TCP/IP Stack 1.4.1........................................................................................................26
3 TCP ISN Algorithm...............................................................................................................27
4 Secure Hash Algorithm (SHA1)............................................................................................27
5 Blueprint CSS Framework  .9..............................................................................................27
Version History............................................................................................................................29
User Guide metraTec TUC Page 3 of 3 

1 General Information

Development of the TCP/IP to UART Converters (TUC) was focused on simple operability of the

module, especially concerning its configuration. To make the setting of parameters for Ethernet

communication as easy as possible, there are three possibilities for the configuration of the TUC

module:

•Using a web browser

•Using the free configuration tool “TUC Config Manager”

•Using a custom protocol accessible via TCP or the serial interface of the module.

1.1 Symbols Used

This user manual and integration guide uses different symbols to point out potentially dangerous

situations. The following symbols are used throughout the document.

ATTENTION

Indicates a potentially hazardous situation. If this is not avoided, the product or

something in its surrounding could be damaged.

NOTE

Declares notes for the user as well as other useful information, where no harmful or

dangerous situations can be expected.

1.2 Further Documentation

Besides this User Guide for the TCP to UART Converter there is also the technical documentation

that addresses the electrical integration of the product into custom boards and the existing

hardware interfaces. This technical documentation is useful if you plan on integrating the module

into custom electronic systems.

Source: http://www.metratec.com  Support  Downloads  Documentation

User Guide metraTec TUC Page 4 of 3

2 Configuration via Web-Interface

In case the module has a valid IP address that is accessible in your network, configuration can be

easily done using a web browser. Default address upon shipping is 192.168.2.239. Entering the

address into a browser of your choice opens the TUC's web interface. If “Home” is selected in the

main menu the currently active configuration settings will be displayed.

This chapter will not document or mention all of the available settings. Please refer to the

“Control Command” Appendix for additional information on all of the available settings.

NOTE

Configuration via web browser is applicable only, if the device IP address is

reachable from your computer, i.e. if packets are routable. This could not be the

case if the device is located in the wrong logical subnetwork. In this case or if you

do not know the address of the device, please use the TUC Config Manager

Software for assigning a valid IP address. The TUC Config Manager only requires

the device to be located in the same physical subnetwork as your computer.

The top menu item “Settings” allows changing the device settings.

2.1 Login

The web interface is protected by a password to prevent manipulation of the TUC module by an

unauthorized third party. The default password upon shipping is “tucadmin“.

Fig. 1: “Login“ Page

After logging in, the overview page is shown that lists all currently active settings of the TUC

module.

User Guide metraTec TUC Page 5 of 3

Fig. 2: “Overview“ Page

2.2 Network Settings

In the sub menu “Settings” “Network Settings” basic network settings can be adjusted. This is →

mainly the IP address type (either static or dynamic via DHCP/AutoIP) and the static IP settings

which are used by the module to acquire a network address.

Furthermore, the name of the device for identification, e.g. via the Config Manager software, can

be changed here. Also, it is possible to disable the automatic UPnP advertisements on this page.

This helps to lower the network traffic caused by the TUC module – UPnP should still work even

without advertisements.

Fig. 3: “Network Settings“ Page

2.3 Port Settings

In the sub menus “Port Settings” and “Port 1 Settings” the configuration of the two UART/GPIO

interfaces (ports) of the TUC module can be changed, as it might be necessary for correct UART

communication with your host controller. It allows you to switch between client and server mode,

Telnet, Raw TCP and Raw UDP transports. Also, the port type can be switched from UART to

User Guide metraTec TUC Page 6 of 3

GPIO, if the corresponding pins should be used as GPIO pins.

Fig. 4: “Port Settings“ Page

2.4 Misc. Settings

Via the sub menu “Misc. Settings” the module can be reset to default. Upon clicking the button,

the default settings will be applied immediately and the device restarts.

Default settings are as follows:

User Guide metraTec TUC Page 7 of 3

Property Default Value

Module Name metraTec TUC Module

UPnP Advertisements Enabled

Address Type Static IP

Static IP Address 192.168.2.239

Subnet Mask 255.255.255.

Default Gateway . . .

Control Shell (Port 4 ) Disabled

Port Type (UART and 1) UART

Baud Rate (UART and 1) 1152 baud

Data Size (UART and 1) 8 bits

Parity (UART and 1) None

Stop Bits (UART and 1) 1 bit

Flow Control (UART and 1) None

Flush Byte (UART and 1) Disabled

Send Timeout (UART and 1) milliseconds

Local Port Number (UART ) 1 1

Local Port Number (UART 1) 1 2

Protocol (UART and 1) Raw TCP

TCP Keepalive Idle Timeout (UART and 1) 5 milliseconds

TCP Keepalive Counter (UART and 1) 5

TCP Keepalive Interval (UART and 1) 1 milliseconds

Mode (UART and 1) Server

Tab. 1: Default settings to be applied on Factory Reset

Further, on this page you can change the web page login password to a custom password.

NOTE

When you change the password it will be sent over the network in plain text. In this

User Guide metraTec TUC Page 8 of 3

moment, everybody “listening” on the network can see the password. Therefore, it

is advisable to change the password only in a secure network.

Fig. 5: “Misc. Settings“ Page

2.5 Applying Settings

Configuration changes submitted using the “Submit” buttons are never applied immediately.

Instead these changes will be “staged” and have to be applied in a separate step. After changing

a setting an “Apply Changes?” box will appear at the bottom of the page. Click “Apply” to apply

all configuration changes (this will restart the TUC module).

Fig. 6: “Apply Changes?” Box

User Guide metraTec TUC Page 9 of 3

3 TUC Config Manager Software

A comfortable way to configure a TUC module is via the free TUC Config Manager software. It is

also the only tool able to perform firmware upgrades on a TUC module. This Java-based program

works on all PCs with Windows (XP or higher), OS X or Linux with a sufficiently recent Java

Runtime Environment (JRE). The most up-to-date version of the Config Manager can be

downloaded for free from the metraTec website. In addition to the overview of the Config

Manager software provided in this document, you are recommended to refer to the

“README.txt” (contained in the Config Manager's release archive) for software requirements and

troubleshooting hints.

On startup and by clicking the “rescan” button at the upper right of the “TUC Devices” list, the

TUC Config Manager will scan the network for TUC modules. All modules on the same physical

subnetwork as your PC – even those without a valid IP address or an address not routable from

your network – will show up in the list on the left side. Select a device in the list to read out its

configuration data. You can now use the tabs on the right side to view and change the settings of

the module or in order to update the module's firmware.

NOTE

The TUC Config Manager uses UDP broadcast datagrams to scan for modules on

the network. If your firewall or network switch blocks this kind of packet, or you do

not have sufficient privilege to send these packets, the automatic detection will not

work and you cannot use the software. Please make sure that your firewall lets the

Config Manager send and receive all packet types. In doubt, deactivate your

firewall when using the Config Manager and re-activate after use. Attaching a

module adhoc to your PC can make sure that network equipment does not interfere

with the operation of the Config Manager.

3.1 Overview Tab (Network Settings)

In the tab “Overview” you can see and configure some basic parameters of the module – it

roughly corresponds to the web interface's “Network Settings” page. Here you can see the

current firmware version and the MAC address of the device. It is possible to change the IP

User Guide metraTec TUC Page 1 of 3

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