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    PJLink Troubleshooting

    How To... ?
    networking control pjlink optoma projector
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    • A
      Andy Demaine IIC last edited by mark

      Hi All

      I have a new Optoma projector that is coming up with the error 'initial response not PJLINK' when trying to send anything to the projector using the PJlink actor. However with a PJlink tester you can download, it is able to execute the commands. 

      The IP address and port number is the same and there is no password.

      I haven't been able to find anything on the error online so any help is appreciated.

      Thanks

      Andy

      1 Reply Last reply Reply Quote 0
      • Juriaan
        Juriaan Tech Staff last edited by

        Please tell us the exact model projector that you have, then we can assist you further. Also what command are you sending ?

        Isadora 3.1.1, Dell XPS 17 9710, Windows 10
        Interactive Performance Designer, Freelance Artist, Scenographer, Lighting Designer, TroikaTronix Community moderator
        Always in for chatting about interaction in space / performance design. Drop me an email at hello@juriaan.me

        1 Reply Last reply Reply Quote 0
        • A
          Andy Demaine IIC last edited by

          Hi 

          Thanks, the projector is the Optoma ZH406ST (https://www.optoma.co.uk/product-details/zh406st) its a very new projector and says is has PJlink capabilities.

          Woland 1 Reply Last reply Reply Quote 0
          • Woland
            Woland Tech Staff @Andy Demaine IIC last edited by

            @andy-demaine-iic

            As Juriaan asked, what command are you sending?

            TroikaTronix Technical Support
            New Support Ticket: https://support.troikatronix.com/support/tickets/new
            Support Policy: https://support.troikatronix.com/support/solutions/articles/13000064762
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            Professional Services: https://support.troikatronix.com/support/solutions/articles/13000109444

            | Isadora Version: all of them | Mac Pro (Late 2013), macOS 10.14.6, 3.5GHz 6-core, 1TB SSD, 64GB RAM, Dual AMD FirePro D700s |

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            • M
              Maki @Woland last edited by

              @woland
              Hello, I'm having the exact same problem with the exact same projector model - did you ever figure it out? I'm trying to send POWER ON and POWER OFF commands.

              Isadora 3.0.7 | Mac / Win

              D 1 Reply Last reply Reply Quote 0
              • D
                DillTheKraut @Maki last edited by DillTheKraut

                @maki


                @andy-demaine-iic said:

                The IP address and port number is the same and there is no password

                 What exactly is the port number you are using? Regarding to this fresh forum thread by @eamon, he experienced the very same error "initial response not PJlink". It was found, that the port number he used was connected to some else service published by the projector, but PJlink beeing published on a different port number than misunderstandably suggested by the manual. Regarding to the Optomas users manual, the Port where the PJLink service is listening on, is 4352. Which is the exact same as used by Panasonic projectors and seams to be the default Projector Link service port: http://tcp-udp-ports.com/port-...

                Best Dill

                1 Reply Last reply Reply Quote 1
                • Woland
                  Woland Tech Staff last edited by

                  From our PJLink knowledge base article:

                  IMPORTANT NOTE: THE IP PORT FOR PJ LINK IS ALMOST ALWAYS 4352!
                  According to the PJ Link Specification, the default IP Port used for PJ Link is 4352. The menus/user interfaces on some projectors (notably Panasonic) might lead you to believe that you can change the PJ Link port number. But our experience and user feedback indicate this is almost never the case. Always try 4352 first!

                  If changing the port to 4352 doesn't work, try working through the steps in the article one by one.

                  Best wishes,

                  Woland

                  TroikaTronix Technical Support
                  New Support Ticket: https://support.troikatronix.com/support/tickets/new
                  Support Policy: https://support.troikatronix.com/support/solutions/articles/13000064762
                  Add-Ons: https://troikatronix.com/add-ons/ & https://troikatronix.com/add-ons/?u=woland
                  Professional Services: https://support.troikatronix.com/support/solutions/articles/13000109444

                  | Isadora Version: all of them | Mac Pro (Late 2013), macOS 10.14.6, 3.5GHz 6-core, 1TB SSD, 64GB RAM, Dual AMD FirePro D700s |

                  M 1 Reply Last reply Reply Quote 1
                  • M
                    Maki @Woland last edited by Maki

                    @woland Sorry I missed your replies. I'm pretty sure the port was set to 4352, but I'm not in the studio now. Will verify tomorrow. By the way, PJLink worked perfectly with the test application and also over telnet using the same port. No luck from Isadora though. However it does work fine from Isadora for my Epson Projectors. Thanks so much for the help!

                    Isadora 3.0.7 | Mac / Win

                    M 1 Reply Last reply Reply Quote 1
                    • M
                      Maki @Maki last edited by

                      @Woland just to confirm - the port in the Isadora PJLink actor is set to 4352. Using the test application or Telnet, I can turn the projector on and off using this port. Isadora gives me the "initial response not PJLINK" error message. When I change the IP address in the actor to one of my Epson projectors, everything works. Let me know if I can do anything to troubleshoot, I'm happy to invest some time getting this to work. The installation will only be launched in September so it would be wonderful to find a solution until then. Alternatively I'm considering writing a shell or Python script to automate power on/off, but it would be amazing to have everything within Isadora. Thank you!

                      Isadora 3.0.7 | Mac / Win

                      1 Reply Last reply Reply Quote 0
                      • Woland
                        Woland Tech Staff last edited by

                        From the manual for the Optoma ZH406ST:

                        This projector supports all commands of PJLink Class1 (Version 1.00).
                        http://pjlink.jbmia.or.jp/english/

                        That being said, could you please: 

                        1. Try this test file with your two projectors PJLink Test.izz.zip. 
                        2. Let me know the model number of your Epson projectors
                        3. Let me know the IP address of your Optoma and Epson projectors

                        TroikaTronix Technical Support
                        New Support Ticket: https://support.troikatronix.com/support/tickets/new
                        Support Policy: https://support.troikatronix.com/support/solutions/articles/13000064762
                        Add-Ons: https://troikatronix.com/add-ons/ & https://troikatronix.com/add-ons/?u=woland
                        Professional Services: https://support.troikatronix.com/support/solutions/articles/13000109444

                        | Isadora Version: all of them | Mac Pro (Late 2013), macOS 10.14.6, 3.5GHz 6-core, 1TB SSD, 64GB RAM, Dual AMD FirePro D700s |

                        M 1 Reply Last reply Reply Quote 0
                        • M
                          Maki @Woland last edited by Maki

                          @woland Sorry again for the delay. I tried your test file and it gives me the exact same result.

                          My Epson projectors work with Class 1 commands but not with Class 2. The Optoma gives me the "initial response not PJLINK" error on any command or query sent with the PJLink actor.

                          The Epson projectors I tested with are EB 700U and EB 2265U. All works perfectly on these.

                          Regarding IP adresses, initially I had all projectors on a 192.168.0.X network with DHCP. Currently I have them on separate network adapters due to the requirements of the installation, so the Epson 700U is set to a static IP of 192.168.1.2 and the Optoma ZH406ST is set to 192.168.2.2. Things continue to work for the Optoma with the PJ Link test application, but not with Isadora.

                          I did notice that the Optoma's network functionality seems generelly less mature and stable compared to the Epsons. It took me a few minutes and restarts to make it remember the static IP I set it to.

                          Thank you!

                          Isadora 3.0.7 | Mac / Win

                          M 1 Reply Last reply Reply Quote 0
                          • M
                            Maki @Maki last edited by Maki

                            Update: Seems like other people are having problems with some projector brands' PJLink implementations. Apparently Optoma, Benq and some NEC projectors don't return valid standard class PJLink replies. So it might not be an Isadora-specific problem. Strange though that the official PJLink test app works despite this. Does this mean PJLink from Isadora categorically doesn't work with these brands due to their non-standard implementation? Is there any way to ignore the incorrect response, since the actual functionality does seem to work when the commands are sent from the test app or Telnet?

                            References:

                            • "Known Issues" note on https://www.sigmasix.ch/projec...
                            • https://forums.openlp.org/disc...

                            Isadora 3.0.7 | Mac / Win

                            mark 1 Reply Last reply Reply Quote 0
                            • Juriaan
                              Juriaan Tech Staff last edited by

                              So we beta tested the PJ Link application before, and we tested it with the Test application and a few projects that I and others had lying around that where PJ Link enabled. Like you can imagine, we haven't tested out every single projector in the market. But if a projector is not sending PJLink commands in the order / described as in the protocol documenation then you can hardly say that Isadora is the fault ;) This is a Projector error. Regarding why it works with the Test application, it seems that they are not validating the response from the Projector to verify that it is as described in the protocol documenation. Could Mark add a way to still make it work with your projector, I think so. Some kind of hidden input field with an option to disable verifaction would already go a long way for your use-case / projectors. 

                              @Woland 

                              Could you log the above ? It is kinda a bug-report / feature request.

                              Isadora 3.1.1, Dell XPS 17 9710, Windows 10
                              Interactive Performance Designer, Freelance Artist, Scenographer, Lighting Designer, TroikaTronix Community moderator
                              Always in for chatting about interaction in space / performance design. Drop me an email at hello@juriaan.me

                              1 Reply Last reply Reply Quote 1
                              • mark
                                mark @Maki last edited by mark

                                @maki

                                I am happy to make an update to the Send PJLink actor, but I'm going to need some documentation on the replies that are actually being sent. Unfortunately, I don't have access to the models of projectors you mention, and so it's sort of impossible for me to try this and find out what's happening.

                                I guess I need to implement some way to write out the transactions.

                                (Sidenote: @Maki it is the convention in this forum to add your primary operating system and hardware to your signature line. Could you please add that? Having it there would have saved me from asking the next question.)

                                Are you running on macOS or Windows?

                                Best Wishes,
                                Mark

                                Media Artist & Creator of Isadora
                                Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

                                M 1 Reply Last reply Reply Quote 0
                                • M
                                  Maki @mark last edited by

                                  @mark

                                  Thank you! That's amazing. I can provide our Optoma projector for testing (based in Vienna), or give remote access to the computer connected to it. Or run tests and report the results.

                                  Regarding OS, I work with both Mac and Windows. This particular project will be run from a Windows PC. Will add this to my signature. Conventions are important :)

                                  Isadora 3.0.7 | Mac / Win

                                  mark 1 Reply Last reply Reply Quote 0
                                  • mark
                                    mark @Maki last edited by mark

                                    @maki

                                    Here's a special version of the PJLink actor that will output a "log" of the communications with your projector.

                                    1) Set up all the parameters to talk to your projector, make sure it's at least trying.
                                    2) Leave the scene and come back to clear the log output
                                    3) Attempt to send a message to the projector
                                    4) Click the 'log' output and copy all the text inside
                                    5) Paste that text in your response to this message

                                    NOTE: THIS IS NOT THE NORMAL RELEASE VERSION OF THIS PLUGIN! INSTALL THIS ONLY IF YOU NEED TO DEBUG COMMUNICATIONS WITH YOUR PROJECTOR! 

                                    Here's the plugin:

                                    send-pjlink-mac-debug-output-v3.zip

                                    You need to install this plugin at /Library/Application Support/TroikaTronix/IsadoraPlugins_x64/ -- move the existing Send PJLink actor somewhere else, and install this special version instead.

                                    Best Wishes,
                                    Mark

                                    Media Artist & Creator of Isadora
                                    Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

                                    M 1 Reply Last reply Reply Quote 1
                                    • M
                                      Maki @mark last edited by

                                      @mark

                                      Thank you! I tried using the custom PJLink actor, unfortunately I don't see the log output. I tested on a Mac with a fresh install of Isadora 3.0.7. (so no risk of mixing up the custom actor with the regular one). Also tried Windows but it seems the custom actor is not working there. Is the log output supposed to be part of the actor (next to "response", "error" and "recv response")? Or should I look somewhere else?

                                      Isadora 3.0.7 | Mac / Win

                                      mark 1 Reply Last reply Reply Quote 1
                                      • mark
                                        mark @Maki last edited by mark

                                        @maki

                                        Sorry, my bad. I uploaded the wrong plugin. Please download the file send-pjlink-mac-debug-output.zip from the post above and install it as instructed. This plugin is macOS only. There is no Windows equivalent at this time.

                                        You'll see that it has the log output as shown here.


                                        Best Wishes,
                                        Mark

                                        Media Artist & Creator of Isadora
                                        Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

                                        1 Reply Last reply Reply Quote 1
                                        • iink
                                          iink last edited by

                                          Hey,

                                          I downloaded the PJLink actor and connected the Optoma ZH406ST to the network. 

                                          Log when sent "Power On"

                                          Process 0x7faa21556520: cmd '%1POWR' - param = '1'
                                          get host name
                                          create socket
                                          connect to socket
                                          wait for connection response
                                          get response
                                          shutdown socket
                                          close socket
                                          close socket err = 0


                                          Log when sent "Power Off"

                                          Process 0x7f8d793c5740: cmd '%1POWR' - param = '0'
                                          get host name
                                          create socket
                                          connect to socket
                                          wait for connection response
                                          get response
                                          shutdown socket
                                          close socket
                                          close socket err = 0

                                          If you need any other commands sent just let me know.

                                          Mat

                                          Isadora 3.0.7
                                          MacBook Pro (Retina, 13-inch, Late 2013) / OSX Catalina 10.15.5
                                          2,6 GHz Dual-Core Intel Core i5
                                          8 GB 1600 MHz DDR3

                                          mark 1 Reply Last reply Reply Quote 0
                                          • mark
                                            mark @iink last edited by mark

                                            @iink

                                            Well, shoot. It didn't print out the actual message sent back from the projector so I can see what is wrong with it.

                                            I've made an update to ensure that information is in the log and tested it with the emulator. So please try again. Sorry for making you do it twice.

                                            Best Wishes,
                                            Mark

                                            Media Artist & Creator of Isadora
                                            Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

                                            iink 1 Reply Last reply Reply Quote 0
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