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panasonic projector
rfayer1
Posts: 22
I posted a few months ago about a Sharp projector. I'm not sure why I have so many difficulties getting projectors to work via RS232 when all the other gear I control this way works easy. However, I eventually got the Sharp projectors working by starting with a simple HyperTerm connex to my laptop and going from there. What I found was strange and that was I constantly got error messages until I entered a sequence of 2 specific commands. Then everything worked. Process was repeated on 3 projectors.
This time I have my laptop connected to a PTD5600. I can't even get an error message in response. Nothing. I've tried variations on everything including cables, communications settings, and command syntax-though I would expect bad syntax to at least get me an error. I checked the menu to see if the serial port on the 5600 was configured.
I'm at a loss and would appreciate any help.
Thanks.
This time I have my laptop connected to a PTD5600. I can't even get an error message in response. Nothing. I've tried variations on everything including cables, communications settings, and command syntax-though I would expect bad syntax to at least get me an error. I checked the menu to see if the serial port on the 5600 was configured.
I'm at a loss and would appreciate any help.
Thanks.
0
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$02ZZ;POF$03
$02ADZZ;POF$03
$02ZZ0A;POF$03
02ZZ;POF03
etc...
I guess you're probably familiar with their protocol or have the document but it is unclear to me exactly what is needed for the ID section. In the document it says 4 bytes total, two are simply given as 'AD' and the other two (listed as ID designate) are either ZZ, 1 to 64 or 0A to 0Z)-ZZ being the default for all which is what my projector is set to in the menu under 'ID'.
The manufacturer's explanation of the ID section of the string is a little unclear to me. It also says the colon after the command is not neccessary without parameters.
As I mentioned I tried a variety of communications settings but the projector is set for 9600 baud rate and that's pretty much what I've been using. Also in the documentation it says sychronization method is 'start/stop'. I don't know if this is the equivalent of 'flow control' on the HyperTerm settings but I've tried setting HyperTerm to 'xon/xoff'.
Anyhow, I'm still getting no response whatever from the projector. Not even an error. I've had this sort of trouble with every projector I've ever worked with including other Panasonic, Sony, and as I mentioned in the first email Sharp. I also know that the engineer who was here before me basically gave up on trying to get the Sony's to work. Since I've only been doing this kind of work for a year or so I'm wondering if projectors are always problematic.
Thanks very much for your help.
Can you post the code where you're trying to send the string?
please be sure to post the code in a code block. Like this
BUTTON_EVENT[TP_1,1] { PUSH; { // DO SOMETHING. } }Perhaps the problem lies in the syntax.
Well I'm not quite sure what you're asking but in the Netlinx code I started with tthis:
BUTTON_EVENT [dvTP, 118]
{
PUSH:
{
SEND_STRING dvPROJ1, "PROJ_ON"
}
}
BUTTON_EVENT [dvTP, 119]
{
PUSH:
{
SEND_STRING dvPROJ1, "PROJ_OFF"
}
}
and the constants PROJ_ON and PROJ_OFF were defined as I indicated in the first post. something along the lines of:
02ADZZ;PON03 or $02ADZZ;POF$03 etc...
HOWEVER, I quickly went straight to using HyperTerminal to communicate directly with the projector until I could get it working that way. This was a method that worked for me when I had similar problems getting some Sharp projectors to work ( by the way that was the only success I've ever had with any projectors). Anyhow, it's all there in my original post. To answer your question though I'm just sending the command strings straight from HyperTerminal so there are no code blocks.
I hope this answers your question and that I didn't misunderstand.
I don't have experience with the projector you're using, but have used Panasonic many times and every time the power on command has been "$02,'PON',$03"
As TonyAngelo points out, you probably have a syntax problem.
You're probably looking at something like.
Oh, I see. The 'ZZ' probably is the unit ID. something like '01' or '00' or whatever.
so if the id was 01 for example
Ryan
send_string dvProj1,"$02,'ADZZ;PON',$03"
yes, that's the basic idea I was getting about the syntax from looking at their protocol-whether for the PTD5600 or the PT3500U which I was having similar problems with a year ago.t
So this command string has actually worked for you? Also, what does the 'AD' represent in the ID part of the command string?
The other problem that I mentioned is that I seem not to have established a connection at all. As I said before I have taken Netlinx out of the loop for now and I'm trying to communicate directly with HyperTerminal and I get no response from the projector-not even error messages. Should I not be seeing at least error responses? Though their diagram indicates a straigh through cable (pin2 male to pin2 female, pin3 to pin3, 5 to 5, 7 to 7, and 8 to 8) I have also tried the traditional crossed.
Also, I'm still trying to sort out the code Ryan sent which is great 'cause as I mentioned I'm still fairly new at this and don't get a chance often to see how others are doing things.
The most curious part in all of this is that with all the switchers, tuners, scalers...I've programmed into systems why is it always the projectors that cause me problems?
Thanks all.
Not sure what the AD means, my protocol doc is attached but it didn't say what AD means.
Are you sure that you are in the proper 232 port? The 7700 has an IN and OUT 232 ports. Make sure to use the IN. Plus a remote 9 pin connector.
Honestly I can't say what the pin out should be, BUT it appears to be a straight thru.
When using Hyperterminal to test Panasonic projectors:
STX ($02) = ctl-B
ETX ($03) = ctl-C
The rest of the command is ASCII and can be entered as normal.
And sorry about posting that since you are new.. Its probably really confusing to sort through all the junk on it that won't pertain to you. If you want me to explain it a little better I can..
Does using the exact same cable/connector from the NI masteer to the proj work with your Hyperterminal session?
Does the cable you origianally used to do the hyperterminal session have all 9 pins connected?
Perhaps the proj needs the CTS/RTS connections. There are also times when you can simply make a jumper from the CTS tot he RTS on the device side to fool it into being a noraml TX/RX connection.
I've tried cables w/ all 9 pins connected, but mostly with just 2,3,5,7, and 8- with 2 and 3 crossed, 7 and 8 crossed, and both.
I guess you're talking about a loop back between 7 and 8 so it's RTS gets answered with it's own CTS. I think, right? But I remember trying an even more complicated version when working with the Sharps that had jumpers from pin4 to 2 and 3. I'd have to look it up again but anyhow, which are you suggesting?
ZZ is the broadcast to all ID's. Pin connections should yield in a straight through cable because TX is on pin 2 for the projector. 7 and 8 are not needed.
Power on command should be "$02,'ADZZ;PON',$03". Did you confirm that the command is getting to the projector by shorting 2 and 3 on the RS232 cable going to the projector at the projector end?
Your just checking if there is not a problem somewhere else. By shorting 2 and 3 you should see the string you're sending in Netlinx diagnostics and the you should see the identical string returning to the port. If you don't see the string, the problem is not with your projector. Instead there maybe a problem with your cable, connectors, or AMX comm port. Keep in mind that you are shorting 2 and 3 on the cable end at the projector.
Send me a snippet of the code you are using to control the projector.
BUTTON_EVENT [dvTP, 118]
{
PUSH:
{
SEND_STRING dvPROJ1, "$02,'ADZZ;PON',$03"
}
}
which is why I believed everything to be ok on the non-projector side. I was communicating betweeen my laptop and my ME260 with no problems,I had checked communication via HyperTerminal with a tuner I had on my desk, and every cable I've tried since has been tested for continuity...still, I'll try shorting 2 and 3-perhaps HyperTerminal is being wierd.
Did you get this information for testing with HT?
I work with the Panasonic projectors all the time.
A simple 2-3-5 control cable is all that is required for reliable
bi-directional control with feedback.
No handshaking is required.
Be sure to have handshaking turned off in your port config event.
Have you verified that the baud rate is the same in the NI and the projector.
It's best to put "SET BAUD" commands in an online event of the RS232 port that you are using.
Something like this:
DATA_EVENT[dvProj1]
{
Online:
{
SEND_COMMAND dvProj1,"'SET BAUD 9600,N,8,1 485 DISABLE'"
}
}