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1660K110F 

 

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Introduction to the DC-41SRTH

 

The DC-41SRTH display is presented as an easy-to-use clock, thermometer and hygrometer adjusted 

and  calibrated  at  factory.  The  main  window  shows  the  current  hour  and  minute,  temperature  with  0,1ºC 

resolution and humidity with 1% 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 A, it has an integrated GPS. The antenna contents a magnet that permit 

to  fix  it  to  a  magnetic  surface.  The  first  time  the  display  is  turn  on,  the  quality  of  the  GPS  signal  must  be 
verified some minutes after the power-up. 

This is done using one of the parameters of the display (see “GPS 

option

 in this manual).  

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  

 

 

TECHNICAL MANUAL DC-41SRTH 

Clock, thermometer and hygrometer with GPS, RS-485 and 

Ethernet. 

Summary of Contents for 1660K110F

Page 1: ...sing one of the parameters of the display see GPS option in this manual If the display includes option NE Ethernet connectivity this display hosts a web site where the user can see the status of the d...

Page 2: ...e 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 Pla...

Page 3: ...gth 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 sa...

Page 4: ...uration 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 8 88 88 88 8 8 88 88 8 8 ENTER ENTER ENTER Para...

Page 5: ...y 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...

Page 6: ...s 8 bits Odd 1 17 9600 Bauds 8 bits Odd 1 18 19200 Bauds 8 bits Odd 1 19 4800 Bauds 7 bits No parity 2 20 9600 Bauds 7 bits No parity 2 21 19200 Bauds 7 bits No parity 2 22 4800 Bauds 8 bits No parity...

Page 7: ...isplays that include GPS sync with the GPS standard signal This allows a better time sync without Ethernet connectivity GPS antenna includes a magnet that can be fixed to a ferric surface This antenna...

Page 8: ...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...

Page 9: ...1660K110F Page 9 of 29 Tip the new IP and click OK There will appear a message in the main window with the message sent to the display...

Page 10: ...1660K110F Page 10 of 29 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...

Page 11: ...ually is in a difficult access point The web page can be accessed remotely if the router is correctly redirected See Annex 2 View the web page remotely for more information The main page shows the sam...

Page 12: ...in the field The second tab allows configuring the network parameters of the display including the IP address DNS etc The display can use DHCP to get these parameters on its own The name of the displ...

Page 13: ...ctions parameters seen from the webpage the user must configure Other parameters don t care Networks with one display One display Ethernet network Ethernet network Time and date introduction by user i...

Page 14: ...Both are configured the same way Ethernet network Ethernet network Ethernet network Ethernet network SNTP server Configure net parameters Sync SNTP Write the server addres in the field SNTP server Con...

Page 15: ...hers sync with the server display Ethernet network Ethernet network Client display Configure net parameters Sync Display Ethernet Write the display server addres in the field Server display Configure...

Page 16: ...NTP server and serves the time to the other displays Ethernet network Ethernet network Client display Configure net parameters Sync Display Ethernet Write the display server addres in the field Server...

Page 17: ...0F Page 17 of 29 Sync through SNTP All displays connect to the SNTP server This works for both cases connecting to a local SNTP server o a cloud SNTP server All displays update from the SNTP server sp...

Page 18: ...nt to is 9760 The following frames can be sent Command Code Data End of block Display time request P H Display temperature request P T Display humidity request P U Time programming F H Display time re...

Page 19: ...II R T T T T Hexa 52h 54h 2Eh Example Temperature 17 2 C Code Data End of block ASCII R T 1 7 2 Hexa 52h 54h 31h 37h 2Eh 32h Display humidity request Frame This frame only includes the code This does...

Page 20: ...ar Space Hour Minute Second End of block ASCII F H DD MM AA HH MM SS Hexa 46h 48h 20h Example 13 06 00 16 05 2013 Code Data End of block Code Day Month Year Space Hour Minute Second End of block ASCII...

Page 21: ...a server and the others will configure with it The parameter 9 1 RS 485 configuration must be the same for all RS 485 network There are many configurations possible only with RS 485 or combining diff...

Page 22: ...1660K110F Page 22 of 29 Sync through a display with GPS...

Page 23: ...1660K110F Page 23 of 29 Sync though a display with Ethernet connected to a SNTP server...

Page 24: ...Display humidity request P U Time programming F H Display time request Frame This frame only includes the code This does not send any data Code Address End of block ACII P H H L Hexa 50h 48h Example...

Page 25: ...4h Example Request temperature from the display in address 03 Code Address End of block ACII P T 03 Hexa 50h 54h 30h 33h Response frame Code Address Data End of block ASCII R T H L T T T Hexa 52h 54h...

Page 26: ...Response from the frame sent in the example before Humidity 60 Code Address Data End of block ASCII R U 03 6 0 Hexa 52h 54h 30h 33h 36h 30h Time programming Frame Code Address Data End of block Code A...

Page 27: ...nal Port The same port as the start port Internal Start Port The port the user enters wants to enter the display In this case the port is 80 which is the standard web page access IP address The LAN IP...

Page 28: ...es with the following European directives Directive LVD 2006 95 CEE Low Voltage Directive Standard UNE EN61010 1 Security in electric equipment Directive EMC 2014 30 UE Electromagnetic Compatibility S...

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