LARTET DC-10ST User manual

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TECHNICAL MANUAL DC-10ST

Thermometer with RS-485 and Ethernet function

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Introduction to the DC-10ST

The DC-10ST display is presented as an easy-to use thermometer adjusted and calibrated at factory.

The main window shows the current temperature with 0,1ºC resolution. The main window can be set to turn

on and turn off at the time set by user and is adjustable in brightness (see “Parameters of the display” in this

manual). There are add-on functions depending on the display. These functions are fully compatible and can

be combined with each other:

If the display includes option NE (Ethernet connectivity), this display hosts a web site where the user

can see the status of the display and configure it. This function allows the display to be used as a server for

other displays to synchronize the hour through the Ethernet, as well as updating its time and date through a

SNTP server. User can configure and request the time through TCP/IP commands. The default IP is

192.165.1.100. See “Ethernet option” in this manual for more information.

If the display includes option X (RS-485 connectivity), this display can be configured as a RS.485

server/client. This means that the display can connect with other displays to sync between them, as well as

the user communication through commands. If the display also includes the Ethernet option, the display can

work as a bridge between both options. See “RS-485 option” for more information

Installation of the DC-10ST

4 fixation

points

ºC

The DC-10ST displays can be fixed to the wall in two ways:

1–Hanged. Place 2 of the supplied plug at 314mm from one to the other. Insert the screws leaving

their head outside for 4mm. Hang the display using the upper-side zig-zag.

2–Screwed. Remove the methacrylate cover. Place the 4 supplied plugs at the distance showed in

the drawing. Place the 2 upper screws, leaving their head outside for 4 mm. Hang the display using the upper-

side zig-zag. Place the lower screws Tighten all the screws. Replace the methacrylate cover.

TECHNICAL MANUAL DC-10ST

Thermometer with RS-485 and Ethernet function

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Powering the display

Power supply must be from 100VAC to 240VAC, 50/60 Hz . You must use a Schuko type plug that

has grounded terminal.

In case you have to lengthen the cord, the connection must be made on the terminal located within

the display.

DC-10ST characteristics.

Power supply ...............................................100 VAC a 240 VAC 50/60Hz

Consumption................................................35VA

Consumption at minimum brightness.......13,2VA.

Display..........................................................3 digits 7segments 100mm height. Red LED.

.......................................................................Visibility 50 meters.

Environmental conditions ..........................Operating temperature: -10 to 60ºC.

.......................................................................Storage temperature: -20ºC to 70ºC

.......................................................................Relative humidity: 5-95% non condensation.

.......................................................................Maximum environmental lighting: 1000 lux.

.......................................................................Protection IP 41.

Weight............................................................4,5 Kg.

Precision.......................................................±0,5°C típ ±2,5 MAX

Resolution ....................................................0,1ºC

Sensor cable length………………………….2 meters.

Timed power-up of the display

This display operates in two operation modes: full-operative mode and power-saving mode. In power-

saving mode the display does not show the time in order to save energy when the display is not needed. If the

power-saving function is not needed and the display should always powered up, the both power-up and

power-down times must be the same.

Parameters of the display

There are three keys on the back side of the display. These keys are used to access and navigate

through the menu of the display. The identification of the keys is

Advance key. Access parameter/switch digits

Enter key. Validate parameter.

Increase key. Increase the value of the digit

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Modify parameters

If the user presses the Advance key for 6 seconds the parameter menu is displayed. In all cases the

number the user is modifying is the one that flashes. The complete diagram of the parameters can be found in

annex 1. In order to make configuration easy for the user, when changing a parameter, a point is turned on.

This point changes depending on the sub-parameter (if it exists) the user is in.

8.88

88.8

8.8.8

888.

ENTER

Parameters are detailed below:

Parameter 1: Date configuration: This parameter configures de date, as well as the wintertime/summertime

automatic switchover configuration. When entering this parameter, the day can be changed using the

Increase and Advance key. To switch to month configuration, press the Enter key. Navigation here is the

same as before. Once set the month, press the Enter key to switch to year configuration. Navigation here is

the same as before. Once set the year, press the Enter key to switch to the following parameter, which has

two parts:

Left digit: wintertime/summertime automatic switchover configuration

0 - Automatic switchover disabled. Time offset must be changed increasing or reducing value

in parameter 3, leaving as the internal time, the UTC time.

1 - Automatic switchover enabled.

Right Digit: Weekday.

It allows to configure the present weekday, where 1 is Monday and 7 is Sunday

Parameter 2: Time configuration: This parameter configures the time When entering this parameter, the

hour can be changed. After pressing Enter, the minute can be changed. When the user leaves the menu, the

seconds are changed to 0.

Parameter 3: Time offset: This parameter allows the user to configure its time zone, as well as changing the

time offset in summertime/wintertime when configuring it manually, or for personal purposes; always counting

that internal time count of the clock is GMT. First digit shows an upper hyphen when adding time and a

hyphen when subtracting

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Parameter 4: Display configuration: This parameter configures other functionalities of the display, as the

brightness and the sync options.

First parameter selects the brightness level, where11 is minimum and 15 is maximum brightness

The second parameter (Accessed through the Enter key once selected the brightness configuration)

configures the time sync depending on the capabilities and the user desires. If the user selects a sync not

allowed by capabilities, the display will not sync. For example, a display without Ethernet connection, selecting

SNTP sync will have no effect. Options are:

0. Do not sync.

1. Sync with another display through Ethernet.

2. Sync through SNTP.

3. Sync with another display through RS-485.

Parameter 5: Display power-up time: This parameter configures the time the display changes form power-

.save mode to full-operative mode. When accessing in this parameter, the hour the display changes to full-

operative mode is shown. When the Enter key is pressed, the minutes are shown. To go back to the

parameter menu, press the Enter key again.

Parameter 6: Display power-down time: This parameter configures the time the display changes from full-

operative mode to power-save mode. When accessing in this parameter, the hour the display changes to

power-save mode is shown. When the Enter key is pressed, the minutes are shown. To go back to the

parameter menu, press the Enter key again.

Parameter 7: Website language. This parameter is shown if the display includes Ethernet option.

0 - Catalan

1 - Spanish

2 - English

3 –French

4 - German

Parameter 8: Display IP. This parameter is shown if the display includes Ethernet option. This

parameter allows the user to change the IP address of the display. Access this parameter pressing the

Advance key. Once inside, the first number of the IP address is shown. Modify it using the Increase and

Advance keys and validate it using the Enter key. Do the same with the other 3 numbers of the IP address. To

identify each number, think that the first number is shown without decimal point. Next numbers appear with

decimal points, shifting left each number.

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Parameter 9: RS-485 configuration. This parameter is shown if the display includes RS-485 option:

Access this parameter pressing the Advance key. Change the code according to the desired configuration.

Code

Baud Rate

Data bits

Parity

Stop bits

4800 Bauds

7 bits

No parity

9600 Bauds

7 bits

No parity

19200 Bauds

7 bits

No parity

4800 Bauds

8 bits

No parity

9600 Bauds

8 bits

No parity

19200 Bauds

8 bits

No parity

4800 Bauds

7 bits

Even

9600 Bauds

7 bits

Even

19200 Bauds

7 bits

Even

4800 Bauds

8 bits

Even

9600 Bauds

8 bits

Even

19200 Bauds

8 bits

Even

4800 Bauds

7 bits

Odd

9600 Bauds

7 bits

Odd

19200 Bauds

7 bits

Odd

4800 Bauds

8 bits

Odd

9600 Bauds

8 bits

Odd

19200 Bauds

8 bits

Odd

4800 Bauds

7 bits

No parity

9600 Bauds

7 bits

No parity

19200 Bauds

7 bits

No parity

4800 Bauds

8 bits

No parity

9600 Bauds

8 bits

No parity

19200 Bauds

8 bits

No parity

4800 Bauds

7 bits

Even

9600 Bauds

7 bits

Even

19200 Bauds

7 bits

Even

4800 Bauds

8 bits

Even

9600 Bauds

8 bits

Even

19200 Bauds

8 bits

Even

4800 Bauds

7 bits

Odd

9600 Bauds

7 bits

Odd

19200 Bauds

7 bits

Odd

4800 Bauds

8 bits

Odd

9600 Bauds

8 bits

Odd

19200 Bauds

8 bits

Odd

Once the serial line is configured, press the Enter key to modify the display address. This must be between 01

and 99. If the user presses the Enter key again, the End of Block can be modified. This can be:

Code

End of block

0Dh

0Ah

0Dh 0Ah

0Ah 0Dh

2Ah 0Dh

02h

03h

04h

Press the Enter key to go back to the menu.

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Parameter J: Maintenance parameter: This parameter is used in factory and must not be modified.

Parameter P: Exit menu: Press Advance key to leave menu.

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Ethernet option

Ethernet options allows a new step in this displays type because it allows to connect displays using

the same LAN in the installation, syncing them through the SNTP and providing a new user interface through

the Web.

The first connection

There are several ways for accessing the display on the first time it’s connected to the network.

One of the ways is changing the IP address through parameters seen before

If the IP 192.168.1.100 (the default IP of the display) is in the range of your LAN, the display can be accessed

typing the IP in the URL bar in your favourite browser.

In case there is more than one display in the LAN or the default IP of the display is out of the IP range of you

LAN, it is recommended to use the PC program “Display Discoverer”, downloadable from the web

www.lartet.com. In this program, the displays connected to the LAN are displayed, as well as their IP

addresses, their MAC addresses (all MAC are 00:04:A3:xx:xx:xx) and its name. The default name of the

display is its serial number. This name can be changed in the Ethernet tab of the web server of the display. If

a display is selected, by clicking “identify Display”, the selected display will flash for 3 seconds.

The first row shows the IP of the PC which is searching the displays and the second row a display we just

have bought. As it is shown, the display has serial number 17061234 and the default IP is out of the range of

the LAN. To change the IP address to a suitable one for our LAN, select the display and click the button

“Change IP”. When clicking this, a new window is opened where a new IP address can be tipped.

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Tip the new IP and click OK. There will appear a message in the main window with the message sent to the

display.

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After some seconds, click the “Refresh” button. The display appears with the new IP

Click the display IP to open a new tab in the browser. The main page of the web server is shown.

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