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Sending Serial commands to NEC E424

Daniel Hargett

November 25, 2014 00:15

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I am using a null modem cable between an XD1230 and NEC E424. I have gone into my presentation settings and set the baud to 9,600 bps, stop bit 1, and ASCII protocol, per the manual for the E424. My XD1230 has firmware 4.8.114, autorun version 6.8.41, and I'm using BrightAuthor 3.8.0.41

The command string for power on is 01 30 41 30 41 30 43 02 43 32 30 33 44 36 30 30 30 31 03 73 0D this doesn't work when sending as "Serial bytes (comma separated)" as the D at the end is not allowed.

I tried sending it as "Serial String (EOL)" and "Serial String (no EOL)" I also tried those with the numbers in the command string as comma separated with no luck.

I then tried those broken up into pairs of 8 numbers e.g. "01 30 41 30 41 30 43 02" with multiple send commands, again with and without commas.

I tried using this converter: https://www.branah.com/ascii-converter to convert to decimal and use "Serial bytes (comma separated)" The output of the converter gives groups of 4 numbers, which BrightAuthor won't take. So I broke them up into groups of 2 number e.g. "48,49,51,48,52,49,51,48" as well as the entire string at once.

I even tried BrightControl "Send Ascii string" although I think that is for CEC commands.

All of this was done over Port 0. The NEC manual doesn't specify a port. Is there some way, from what appears to be limited information in the manual, to convert these ascii command strings into a format that works from BrightAuthor or a certain way I'm supposed to send them? Will the XD1230 even be able to turn this screen on, since it wants these ascii strings?

My test presentation is setup with a series of images, with the entry command for each image set with the different permutations listed above, to turn the screen on, then display the image for 15 seconds. My thinking is that whatever image shows on the screen when it's on contains the correct setup. None of the above works though. If anyone has a sample presentation that works with this particular model, that would be great! I've attached the NEC code reference for this model of screen.

E424_external_control_codes.pdf

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13 comments

• 0
  
  Brandon November 25, 2014 00:35

  01 30 41 30 41 30 43 02 43 32 30 33 44 36 30 30 30 31 03 73 0D

  is a hex string.  So to send using Serial bytes (comma separated) you need to convert the values back to decimal.  The website you're using unfortunately hides the 0D because it's a carriage return and ends up displaying as a carriage return in the form.

  Send String of that string as-is won't work, since it's not the ASCII equivalent, plus there are control characters (the 01 and 03) that you can't enter anyway.

  Convert the hex string using Windows Calculator in Programmer mode, or http://www.asciitable.com/ to a decimal string, then use Serial bytes (comma separated)

  If I've done the conversion correctly, the decimal equivalent is
  1,48,65,48,65,48,67,2,67,50,48,51,68,54,48,48,48,49,3,151,13

• 0
  
  Daniel Hargett November 25, 2014 19:05

  Excellent thank you! The D on th end made me think it might be hex, but I was confused since it says it's ascii. Your string was entirely correct except for the 151. After I corrected that to 115, the screen came right on!

  1,48,65,48,65,48,67,2,67,50,48,51,68,54,48,48,48,49,3,115,13

• 0
  
  Ian Coburn January 23, 2015 18:01

  I know this is an old post, but I am trying to figure out the basics of this and it's the only post I could find on the subject.

  I am looking to send a serial command to power on the exact same monitor in the original question.   Following the video tutorial on the subject on the site, I made a new presentation, made an image, and added a send command to it using:

  Entry Command ---- Send Serial Byes Comma Seperated --- Port 0 ---- and the string above

  When I turn on the unit (XD1230) the red error light flashes on it though and nothing seems to happen.

  Is there anything I am missing?

• 0
  
  Roni Starc January 26, 2015 06:28

  On the topic. I haven't used the serial yet, but I am about to. Coming from the AV integration industry I find the method of imputing decimal numbers rather odd, as most AV equipment manufacturers provide codes in hex format. Could you please add to BA some prefix so we could enter hex numbers (like %xx or $xx)?

   

• 0
  
  BrightSign Support January 26, 2015 18:53

  Roni,

  To send hex values from BrightSign, you should convert them to decimal and then send decimal vales using the "Send - byte(s)" command.

  See:

  http://support.brightsign.biz/entries/20203736-How-do-I-send-Hex-commands-or-bytes-using-BrightAuthor-

  You can use a standard windows calculator to do a hex-to-decimal conversion.

• 0
  
  Daniel Hargett January 26, 2015 18:56

  Ian - Here are the codes for the E424 that I have converted and tested as working:
  
  

  Power on DEC - 1,48,65,48,65,48,67,2,67,50,48,51,68,54,48,48,48,49,3,115,13

  Power off DEC- 1,48,65,48,65,48,67,2,67,50,48,51,68,54,48,48,48,52,3,118,13

  HDMI1 DEC - 1,48,65,48,69,48,65,2,48,48,54,48,48,48,49,49,3,114,13

  HDMI2 DEC - 1,48,65,48,69,48,65,2,48,48,54,48,48,48,49,50,3,113,13

  HDMI3 DEC - 1,48,65,48,69,48,65,2,48,48,54,48,48,48,49,51,3,112,13

   

  Just use the "Send - byte(s)" command as instructed above.

• 0
  
  Kristine Rivall December 02, 2015 22:19

  Daniel, thanks for the question. This has helped me out a lot so far. I am attempting to do this with the E464. For all intents and purposes the manual (page 41 http://www.necdisplay.com/documents/UserManuals/E654.554.464.424.324_UsersManual.pdf)  is exactly the same as your model and it has the same external hex codes. However, everything loads up just fine (the home screen that is just a logo - i checked this by manually turning the TV on) BUT... the TV just dosn't turn on. I attached a copy of my setup. It's just a single home image that is sending the Serial - bytes (comma sep) command. I scheduled it every which way - 10 mins out, 20 mins out, all day everyday, the dang TV won't budge. Could it possibly be my cable? I'm using the first DB9F>DB9F cable I found. 

  I'm using an XD1132 all firmware up to date, Bright Author 4.3.0.11.

  Thanks for any help.

• 0
  
  BrightSign Support December 03, 2015 10:17

  Hi Kristine,

  Please test this cable from a PC. You can use a free program like Hercules to send and receive RS232 commands:

  http://www.hw-group.com/products/hercules/index_en.html

• 0
  
  Kristine Rivall December 10, 2015 21:21

  Thank you. That confirmed it was my cable. I just needed to add an adapter and it worked like a charm. 

• 0
  
  Casey June 22, 2017 21:42

  I am using the same method to control a NEC V462 with the XT1143 that has the 3.5mm serial jack. We are having no luck getting the display to turn on. We have checked the cable and the send-byte command. Any help?

• 0
  
  Allen H. Porter June 23, 2017 16:28

  Here are the tested commands as shown in a screenshot for off and on.  And you either need the straight-thru 3.5mm stereo cable or it may be a crossover.  Swap tip and ring.  I have not used the 3.5mm on NEC yet.

   

  For samsung it is straight thru 3.5mm.  For LG it is cross-over 3.5mm.
  
  

• 0
  
  Yatin Baluja May 09, 2018 16:44

  Sending IR remote message, what should I enter as hex value as I'm not getting what to enter and from where I get those value.  I have an external IR blaster (3.5mm) Jack with the remote which I want to configure with BrightSign XT1143 and control my presentation or switch the presentation with the remote. 

   

  

• 0
  
  D Reese September 27, 2019 13:56

  Adding to this chain, and lean on the experience of others...

  I've made NEC power on and power off setups similar to the ones mentioned above, using the same serial codes Daniel Hargett (above) breaks down.

  NEC Pwr On

   Command: SEND; Command Parameters: SERIAL BYTES (COMMA SEPARATED); 1,48,65,48,65,48,67,2,67,50,48,51,68,54,48,48,48,49,3,115,13     

  
  NEC Pwr Off 

  Command: SEND; Command Parameters: SERIAL BYTES (COMMA SEPARATED);  1,48,65,48,65,48,67,2,67,50,48,51,68,54,48,48,48,52,3,118,13

  The players have no problem powering on the NEC monitors, but the power off command isn't technically turning them off. It just becomes a solid color screen like solid red, purple, or green (Depending on the monitor). What else needs to be setup to actually make them go black as in standby or off? Is that something that can be resolved with a BrightSign control, or is that an additional setup in the NEC settings, such as a timer schedule, display protection, or something else?