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Forum: RDMnet (E1.33) General Discussion March 7th, 2023
Replies: 4
Views: 4,837
Posted By sblair
Hey Rob, welcome to the forums! LLRP is ONLY...

Hey Rob, welcome to the forums!

LLRP is ONLY meant to be used as a rescue protocol for devices that have incorrect network settings or settings that prevent them from establishing a TCP connection...
Forum: RDM General Implementation Discussion January 13th, 2022
Replies: 8
Views: 5,340
Posted By sblair
And that is exactly why I don't try to be clever...

And that is exactly why I don't try to be clever in my code. I'll just end up confusing myself later. I don't recommend trying to be too smart in your code. Eric is one of the more brilliant...
Forum: RDM General Implementation Discussion January 13th, 2022
Replies: 8
Views: 5,340
Posted By sblair
Welcome to the forums! A couple random...

Welcome to the forums!

A couple random thoughts of things I've ran into before to also check:

- Could be a timing issue in the response. Make sure everything is within the right timing...
Forum: RDM Interpretation Questions September 8th, 2021
Replies: 2
Views: 3,083
Posted By sblair
Matthias, Welcome to the forums! ...

Matthias,

Welcome to the forums! PRODUCT_DETAIL_ARC was meant to denote the source in the fixture is using an Arc source, such as carbon arc, xenon lamp, HID, etc...

Most moving lights of...
Forum: RDM General Implementation Discussion April 17th, 2021
Replies: 7
Views: 7,499
Posted By sblair
edit: Added the youtube link: ...

edit: Added the youtube link: https://www.youtube.com/watch?v=-5BmsJ7CeFE
Forum: RDM General Implementation Discussion April 17th, 2021
Replies: 7
Views: 7,499
Posted By sblair
Thierry, It does take a bit to wrap your...

Thierry,

It does take a bit to wrap your head around. Here's a couple previous threads on it where I've given some detailed examples that I think should be useful in understanding the...
Forum: RDM Interpretation Questions April 11th, 2021
Replies: 3
Views: 4,465
Posted By sblair
Fish, You raised some very good questions. ...

Fish,

You raised some very good questions. These are questions we will need to clarify in a future revision to the standard.

I went back to Wayne Howell who wrote that portion of the original...
Forum: RDM General Implementation Discussion January 31st, 2021
Replies: 2
Views: 4,561
Posted By sblair
Jim, E1.37-5 is getting ready to go back out...

Jim,

E1.37-5 is getting ready to go back out to Public Review in the next couple months. Interesting suggestion on the HELP PID. I'm hoping that the Parameter Description JSON functionality will...
Forum: RDM General Implementation Discussion November 20th, 2020
Replies: 1
Views: 3,848
Posted By sblair
Welcome to the forums Thierry. I would...

Welcome to the forums Thierry.

I would suggest using the ENDPOINT_TO_UNIVERSE PID from E1.37-7. You will also want to support the ENDPOINT_LIST PID as well for controllers that may be expecting...
Forum: RDMnet (E1.33) General Discussion October 24th, 2020
Replies: 3
Views: 4,302
Posted By sblair
The RDM standard (ANSI E1.20) as well as all the...

The RDM standard (ANSI E1.20) as well as all the ESTA standards (including, RDMnet, sACN, E1.37 RDM messages suite) can be freely downloaded here: ...
Forum: RDMnet (E1.33) General Discussion October 24th, 2020
Replies: 3
Views: 4,302
Posted By sblair
Hello, welcome to the RDM forums! There are...

Hello, welcome to the RDM forums!

There are no licensing requirements related to the RDM protocol itself (ANSI E1.20). You are free to market and distribute anything you develop as you see fit,...
Forum: RDMnet (E1.33) General Discussion July 3rd, 2020
Replies: 3
Views: 6,191
Posted By sblair
Awesome news! Thanks Sam!

Awesome news! Thanks Sam!
Forum: RDM General Implementation Discussion January 2nd, 2020
Replies: 2
Views: 5,707
Posted By sblair
Fraser, Very cool! It would be awesome to...

Fraser,

Very cool! It would be awesome to see you add emulation of RDMnet Devices in the future to it as that could be a lot of use as people are beginning their RDMnet development.
Forum: RDM General Implementation Discussion December 9th, 2019
Replies: 4
Views: 7,821
Posted By sblair
Welcome to the forums. Which RDM Test Platform...

Welcome to the forums. Which RDM Test Platform are you using? There's a couple out there so knowing that will help.

The Discovery Command Class is 0x10. This is detailed in Table A-1. The PID...
Forum: RDM Interpretation Questions November 4th, 2019
Replies: 2
Views: 7,261
Posted By sblair
Good question. I don't think this has ever come...

Good question. I don't think this has ever come up before as a question. All characters in RDM are handled as 1 byte per character. Yes, implementation follows standard ASCII representation where...
Forum: RDM Interpretation Questions November 4th, 2019
Replies: 1
Views: 4,758
Posted By sblair
Welcome to the forums. There are different type...

Welcome to the forums. There are different type of Self Tests and it depends on the device and implementation. While it is possible that a device can implement a self test that returns a status...
Forum: RDMnet (E1.33) General Discussion September 4th, 2019
Replies: 0
Views: 5,773
Posted By sblair
RDMnet Introduction Webinar

For those interested in learning about RDMnet there is an introductory Webinar that was recently produced by the co-chairs of the RDMnet Task Group:

https://www.youtube.com/watch?v=xGfF5XfOnj8
Forum: RDMnet (E1.33) General Discussion September 4th, 2019
Replies: 0
Views: 5,602
Posted By sblair
ESTA Announces Release of RDMnet (ANSI E1.33)

ESTA Announces ANSI Approval of RDMnet!

ESTA’s Technical Standards Program (TSP) announced today that the American National Standards Institute (ANSI) has approved E1.33 RDMnet as an American...
Forum: RDM Interpretation Questions July 30th, 2019
Replies: 6
Views: 11,772
Posted By sblair
Here's a common example from a moving light for...

Here's a common example from a moving light for the Slot Info data. This was from a High End Systems fixture.


// Pan High
ParamData[i++] =...
Forum: RDM Interpretation Questions July 27th, 2019
Replies: 6
Views: 11,772
Posted By sblair
Rory, Welcome to the RDM forums! Yes,...

Rory,

Welcome to the RDM forums!

Yes, you can definitely have multiple secondary slots pointing to the same primary. It can be quite common on moving lights with gobo wheels and color systems...
Forum: RDM General Implementation Discussion March 5th, 2019
Replies: 9
Views: 16,774
Posted By sblair
Yes, this has always been my belief from past...

Yes, this has always been my belief from past experiences coupled with the TDR tests ESTA did many years ago studying the effects of difference cables types and connections.

Those studies can be...
Forum: RDM General Implementation Discussion March 5th, 2019
Replies: 9
Views: 16,774
Posted By sblair
Keep in mind too that the TDR testing ESTA did as...

Keep in mind too that the TDR testing ESTA did as part of qualifying CAT5 cabling years ago shows that there is significant discontinuities caused by each connector, so ultimately this will be a...
Forum: RDM General Implementation Discussion December 17th, 2018
Replies: 19
Views: 30,575
Posted By sblair
It's also worth noting that the current public...

It's also worth noting that the current public review document for the E1.20 revision has the following language added to IDENTIFY_DEVICE

"Once Identify is enabled it should remain active until...
Forum: RDM Interpretation Questions December 15th, 2018
Replies: 16
Views: 20,059
Posted By sblair
Mike, welcome to the forums! There's two...

Mike, welcome to the forums!

There's two issues here. If the Footprint is zero then that means the Start Address PID is probably not a supported PID. The language in the current version of RDM...
Forum: RDM General Implementation Discussion December 13th, 2018
Replies: 19
Views: 30,575
Posted By sblair
Majid, it really all depends on your market and...

Majid, it really all depends on your market and customer requirements as well as type of product.

DMX signal loss behavior is different in almost every product. Most moving lights would typically...
Forum: RDM General Implementation Discussion December 12th, 2018
Replies: 19
Views: 30,575
Posted By sblair
Hey Majid, You're fine up until step 4. ...

Hey Majid,

You're fine up until step 4. You're going to have problems in that case because the vast majority of the time you will have RDM commands interleaved between the DMX packets. This...
Forum: RDM Interpretation Questions November 14th, 2018
Replies: 8
Views: 12,083
Posted By sblair
The Write Protect mechanism is weak security at...

The Write Protect mechanism is weak security at it's best.... which was all it was meant to be. It can be cracked with a simple for() loop by a malicious controller.

Generally speaking I think it...
Forum: RDM Interpretation Questions November 14th, 2018
Replies: 8
Views: 12,083
Posted By sblair
Hey Shawn, Welcome to the RDM forums! It's...

Hey Shawn,

Welcome to the RDM forums! It's a good question and you are likely to get different answers from different people. The standard is not specific about order things must be validated...
Forum: RDM General Implementation Discussion September 28th, 2018
Replies: 28
Views: 33,960
Posted By sblair
Truer words have never been spoken!!

Truer words have never been spoken!!
Forum: RDM General Implementation Discussion September 26th, 2018
Replies: 3
Views: 8,282
Posted By sblair
Some controllers support PARAMETER_DESCRIPTION I...

Some controllers support PARAMETER_DESCRIPTION I know, but overall I don't think it has been that widely supported because of it's limitations. There expanded version of Parameter Description that...
Forum: RDM General Implementation Discussion August 22nd, 2018
Replies: 28
Views: 33,960
Posted By sblair
Yes, one of the lead developers for it is very...

Yes, one of the lead developers for it is very involved in the RDM Task Group in ESTA and it is a widely used tool for RDM.
Forum: RDM General Implementation Discussion August 20th, 2018
Replies: 28
Views: 33,960
Posted By sblair
First off you will need to register for a...

First off you will need to register for a Manufacturer ID to be able to then generate your own Unique ID from it. They are free to register and details are available here: ...
Forum: RDM General Implementation Discussion August 20th, 2018
Replies: 1
Views: 7,873
Posted By sblair
It is really going to be specific to the device...

It is really going to be specific to the device as to how it does addressing and if it gives you the ability to set the address on individual cells vs setting a start address for the entire fixture.
Forum: RDM General Implementation Discussion August 17th, 2018
Replies: 28
Views: 33,960
Posted By sblair
If it is specific to OLA then you might be better...

If it is specific to OLA then you might be better asking in their forums. In general you need to be implementing the SENSOR_DEFINITION PID in RDM to define what the properties of the sensors are and...
Forum: RDM General Implementation Discussion August 14th, 2018
Replies: 28
Views: 33,960
Posted By sblair
Just to be clear is your question on how to...

Just to be clear is your question on how to represent sensors in RDM or how to read in the sensor input in the Arudino Hardware?
Forum: E1.31/sACN General Discussion July 21st, 2018
Replies: 0
Views: 14,283
Posted By sblair
Welcome to the E1.31/sACN Forum

This forum is dedicated for any questions or discussions related to the sACN standard.
Forum: RDM User Discussion July 21st, 2018
Replies: 1
Views: 13,261
Posted By sblair
Anthony, welcome to the RDM Protocol forums. ...

Anthony, welcome to the RDM Protocol forums.

Unfortunately I don't have an answer for you on your specific question. There might be others here that would but you'll probably best find an...
Forum: RDM Interpretation Questions June 8th, 2018
Replies: 4
Views: 12,594
Posted By sblair
Welcome to the forums. There are a number of...

Welcome to the forums. There are a number of people here that have implemented Proxies so they can help answer your questions. Technically for a Proxy you just have to set the flag and support the...
Forum: RDM Interpretation Questions May 14th, 2018
Replies: 4
Views: 9,840
Posted By sblair
Sandor, Just to add another voice here I...

Sandor,

Just to add another voice here I agree with all of Eric's responses.

On item #1 there is a lot of differing feelings on this and it is very implementation specific. My opinion on it...
Forum: RDM Interpretation Questions May 13th, 2018
Replies: 2
Views: 7,251
Posted By sblair
Yes, that is correct. The intent of this is to...

Yes, that is correct. The intent of this is to reduce the amount of polling needed so QUEUED_MESSAGEs are sent only to the root device and the response can be either from the root or the sub-device...
Forum: RDM Timing Discussion December 30th, 2017
Replies: 2
Views: 12,864
Posted By sblair
I don't think you are reading the tables right. ...

I don't think you are reading the tables right. What you have listed as the Max in your post is actually the "Typical" or recommended value. There is no Max listed for the BREAK length as it can be...
Forum: RDM Interpretation Questions December 14th, 2017
Replies: 19
Views: 20,471
Posted By sblair
There are no requirements on the controller here...

There are no requirements on the controller here so it may continue to ask for other PIDs besides the one it has been ACK_TIMER on.
Forum: RDM General Implementation Discussion November 3rd, 2017
Replies: 5
Views: 10,937
Posted By sblair
Majid, Welcome to the forums! Yes, there is...

Majid, Welcome to the forums!

Yes, there is only 1 set of personalities. I would take caution in how you implement this as having a large number of combinations/personalities will make it much...
Forum: RDM User Discussion November 1st, 2017
Replies: 3
Views: 9,633
Posted By sblair
Welcome! There are a lot of timings that are...

Welcome! There are a lot of timings that are very specific for DMX512 and even more so for RDM that it's unlikely you would be able to reliably use a generic RS485 repeater. There are very specific...
Forum: RDM User Discussion September 15th, 2017
Replies: 3
Views: 9,020
Posted By sblair
Not sure which USB interface you are using, but...

Not sure which USB interface you are using, but you will really need an app that works with it and supports RDM functionality. Are you using a proper USB/DMX interface or just a just a generic...
Forum: RDM Physical Layer/Hardware Discussion September 13th, 2017
Replies: 2
Views: 8,937
Posted By sblair
Nelly, Can you try posting again with the...

Nelly,

Can you try posting again with the picture? I didn't come through, possibly because it was a new account that hadn't been approved yet, but it is now.

Thanks.
Scott
Forum: RDM General Implementation Discussion September 5th, 2017
Replies: 3
Views: 10,022
Posted By sblair
Welcome to the forums. There are no official...

Welcome to the forums. There are no official restrictions on the logo usage. However, I would strongly suggest you not mark or brand them with anything "RDM" unless they fully support the protocol....
Forum: DMX512 Discussion June 19th, 2017
Replies: 2
Views: 8,232
Posted By sblair
It is very common in most moving lights to have a...

It is very common in most moving lights to have a combination of both 8 and 16 bit parameters. I've never seen one that will use all 16-bit parameters...
Forum: RDM General Implementation Discussion May 30th, 2017
Replies: 9
Views: 19,630
Posted By sblair
In some cases you may not want to publicly report...

In some cases you may not want to publicly report a manufacturer-specific PID in your product if it is intended for your own use only. If you intend for it to be private and that you only use it...
Forum: RDM Marketplace Discussion March 17th, 2017
Replies: 2
Views: 13,729
Posted By sblair
Joe, welcome to the RDM forums! I've not had...

Joe, welcome to the RDM forums! I've not had much specific experience with the Swisson RDM test units myself, but someone else on the forums here may have and can comment.

It sounds like you...
Forum: RDM General Implementation Discussion January 12th, 2017
Replies: 4
Views: 10,342
Posted By sblair
The message to use to change the operating mode...

The message to use to change the operating mode or DMX library that is used would be the DMX_PERSONALITY message.

There currently is not a standardized message for doing tunable white (i.e....
Forum: RDM General Implementation Discussion January 12th, 2017
Replies: 4
Views: 10,342
Posted By sblair
Please provide some more detail so I can better...

Please provide some more detail so I can better understand your question. Are you using an existing product or developing one? Basically speaking, your device has to have RDM implemented and...
Forum: RDM User Discussion December 13th, 2016
Replies: 4
Views: 10,698
Posted By sblair
Correct, the decoder reports the...

Correct, the decoder reports the status/configuration of itself back to the Controller. The decoder has no knowledge of what is actually connected to its PWM outputs as you said since it is just...
Forum: RDM User Discussion December 13th, 2016
Replies: 4
Views: 10,698
Posted By sblair
Welcome! Both ends have to support RDM....

Welcome!

Both ends have to support RDM. You have to have support for it in both the controller and in the device for it to work. Additionally, if you have any DMX Splitters in-line they...
Forum: RDM User Discussion October 11th, 2016
Replies: 2
Views: 9,527
Posted By sblair
There is also a lot of detail in their release...

There is also a lot of detail in their release notes on enabling RDM in the console that you should review: ...
Forum: RDM User Discussion October 11th, 2016
Replies: 2
Views: 9,527
Posted By sblair
Edit: After looking at the current...

Edit:

After looking at the current release notes for the GrandMA it looks like they have recently added RDM support into their console. You would need to make sure that RDM is enabled in the...
Forum: RDM General Implementation Discussion October 8th, 2016
Replies: 3
Views: 11,191
Posted By sblair
The specific command is IDENTIFY_DEVICE. It is...

The specific command is IDENTIFY_DEVICE. It is all documented in the standard itself as to how the protocol all works. Every controller presents it differently to the user depending on the design...
Forum: RDM General Implementation Discussion October 8th, 2016
Replies: 3
Views: 11,191
Posted By sblair
All RDM devices have a UID preprogrammed into...

All RDM devices have a UID preprogrammed into them that is like a unique electronic serial number. This is how they are discovered by an RDM Controller.

The DMX Address of the device can be...
Forum: RDM General Implementation Discussion July 22nd, 2016
Replies: 9
Views: 14,622
Posted By sblair
I'd say Hamish is more correct here. There are...

I'd say Hamish is more correct here. There are requirements in 10.1 on both the Responder and the Controller.

This first sentence is the requirement for the Responder:



That clearly states...
Forum: RDM General Implementation Discussion July 22nd, 2016
Replies: 9
Views: 14,622
Posted By sblair
I'd say Hamish is more correct here. There are...

I'd say Hamish is more correct here. There are requirements in 10.1 on both the Responder and the Controller.

This first sentence is the requirement for the Responder:

<QUOTE>
The...
Forum: RDM General Implementation Discussion June 30th, 2016
Replies: 5
Views: 12,696
Posted By sblair
Do you know where the other data is coming from? ...

Do you know where the other data is coming from? Solving that would be my first priority. You basically have 2 options in how to handle this. You can either just reject the response and send the...
Forum: RDM Interpretation Questions February 24th, 2016
Replies: 3
Views: 10,503
Posted By sblair
Agree with Eric here. The only logical thing to...

Agree with Eric here. The only logical thing to respond in the NACK with is QM.
Forum: RDM Marketplace Discussion February 5th, 2016
Replies: 2
Views: 11,266
Posted By sblair
Welcome to the RDM forums! It really will...

Welcome to the RDM forums!

It really will depend on the architectural controller you are using. You'll need one that supports RDM and allows for a remote connection. If you're using something...
Forum: RDM General Implementation Discussion February 3rd, 2016
Replies: 28
Views: 33,960
Posted By sblair
I'm not specifically aware of it being done on an...

I'm not specifically aware of it being done on an Arduino, but I'm sure it has been. There is a lot of development that has been done using the Raspberry Pi.

I haven't used this one but just...
Forum: RDM General Implementation Discussion February 2nd, 2016
Replies: 4
Views: 12,705
Posted By sblair
We are constantly developing new RDM PIDs...

We are constantly developing new RDM PIDs (messages) to add different functionality. What you're requesting is something that has been discussed in the past, it is certainly something that we are...
Forum: RDM General Implementation Discussion January 31st, 2016
Replies: 4
Views: 12,705
Posted By sblair
You're correct. We need to put a clearer link on...

You're correct. We need to put a clearer link on the site to it. Here's where you can download it from: http://tsp.esta.org/tsp/documents/published_docs.php It will be under E1.20-2010

...
Forum: RDM Timing Discussion May 27th, 2015
Replies: 10
Views: 21,302
Posted By sblair
Looks like I'm a little late to the party tonight...

Looks like I'm a little late to the party tonight but I was going to suggest the same thing it looks like you've already arrived at.

I've used DMA in some of my implementations and I do as...
Forum: RDM General Implementation Discussion April 12th, 2015
Replies: 3
Views: 10,120
Posted By sblair
It is allowed to do this, but obviously not...

It is allowed to do this, but obviously not preferred. Make sure you pay attention to all the messages where ACK_TIMER is not allowed.

Also, for any message that is ACK_TIMER I would make...
Forum: RDM Physical Layer/Hardware Discussion March 24th, 2015
Replies: 19
Views: 28,543
Posted By sblair
I would suggest putting a scope on the line and...

I would suggest putting a scope on the line and use the Transmitter Enable line as the scope trigger. This way you can accurately measure the timing of what is occurring on the wire to see how much...
Forum: RDM General Implementation Discussion March 12th, 2015
Replies: 2
Views: 9,150
Posted By sblair
It's equal to 1 hour.

It's equal to 1 hour.
Forum: RDM Interpretation Questions February 9th, 2015
Replies: 14
Views: 23,480
Posted By sblair
Normally I have a hard time finding something to...

Normally I have a hard time finding something to disagree with Eric on, but I'm gonna say here that I disagree with his use of "probably".

Controllers should DEFINITELY not crash if they see...
Forum: RDM Timing Discussion January 27th, 2015
Replies: 6
Views: 17,514
Posted By sblair
Yes, its been discussed a number of times. It...

Yes, its been discussed a number of times. It really is up to the implementer. In some cases where the write operation is considered to be reliable enough a regular ACK will be used. Others that...
Forum: RDM Timing Discussion January 26th, 2015
Replies: 6
Views: 17,514
Posted By sblair
I would consider it to be a recoverable error in...

I would consider it to be a recoverable error in that the controller will have not gotten a response for the GET so it can always treat it as lost and send another one.

Instead of sending an ACK...
Forum: RDM General Implementation Discussion January 14th, 2015
Replies: 1
Views: 9,115
Posted By sblair
New RDM Expansion PIDs doc in Public Review

PLASA currently has a suite of new PIDs (commands) for RDM that are in Public Review for extending the functionality of RDM that we are seeking feedback on.

The majority of this set of PIDs are...
Forum: RDM Interpretation Questions December 16th, 2014
Replies: 2
Views: 12,636
Posted By sblair
I hear ya! It takes a bit to wrap your head...

I hear ya! It takes a bit to wrap your head around at first. Here is how I've implemented Gobo wheels in the past. This covers a rotating gobo wheel with control channels and 16-bit rotation.
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