Forum: E1.31/sACN General Discussion
March 17th, 2023
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Replies: 1
Views: 5,043
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Forum: RDMnet (E1.33) General Discussion
March 15th, 2023
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Replies: 4
Views: 5,039
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Forum: RDM General Implementation Discussion
June 25th, 2022
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Replies: 2
Views: 3,228
Most of the Wireless RDM systems do act as a...
Most of the Wireless RDM systems do act as a Proxy. RDM Responders have to respond within about 2ms, but most wireless systems take longer then that to get the data across the wireless link, so it...
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Forum: RDM General Implementation Discussion
January 13th, 2022
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Replies: 8
Views: 5,622
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Forum: RDM General Implementation Discussion
January 13th, 2022
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Replies: 8
Views: 5,622
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Forum: RDM General Implementation Discussion
January 13th, 2022
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Replies: 8
Views: 5,622
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Forum: RDM Interpretation Questions
January 21st, 2021
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Replies: 8
Views: 14,082
There's not one "correct" equation. Dimmer...
There's not one "correct" equation. Dimmer curves (the DMX to output level mapping) is the subject of endless debate. este_'s equation might work for some users. But, if the user wants levels to...
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Forum: RDM Interpretation Questions
January 21st, 2021
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Replies: 8
Views: 14,082
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Forum: RDM General Implementation Discussion
November 18th, 2020
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Replies: 5
Views: 6,110
Have you looked at the RS485 line with an...
Have you looked at the RS485 line with an oscilloscope to see what's actually being sent?
The two RDM Sniffers I know of are the Enttec and the DMXter4.
In general using auto-direction control...
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Forum: RDM Timing Discussion
September 13th, 2020
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Replies: 6
Views: 11,466
A simple splitter sits with all ports in...
A simple splitter sits with all ports in tri-state until it sees a falling edge on one port. It then starts driving the data from that port to the other ports until the source port goes idle for...
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Forum: RDM Timing Discussion
August 28th, 2020
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Replies: 6
Views: 11,466
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Forum: RDM Timing Discussion
August 27th, 2020
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Replies: 6
Views: 11,466
I've posted in the past about Splitters and...
I've posted in the past about Splitters and Inline devices. Search for forums for my previous posts and you should be able to find them.
Having built a fully protocol-aware transparent inline...
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Forum: RDM Interpretation Questions
April 15th, 2020
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Replies: 2
Views: 15,449
PARAMETER_DESCRIPTION is very limited. It lets...
PARAMETER_DESCRIPTION is very limited. It lets you describe simple PIDs with a single value that is symmetric between GET and SET. Anything more complicated can't be fully described.
sergeychk>...
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Forum: RDM General Implementation Discussion
January 17th, 2020
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Replies: 2
Views: 6,652
There's no single correct way to do it.
In ...
There's no single correct way to do it.
In general, Null Startcode is intended for Control, and RDM is intended for management, but those can cross-over for something like color temperature.
...
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Forum: RDMnet (E1.33) General Discussion
January 8th, 2020
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Replies: 1
Views: 6,226
Yes, this is new payload structure for RDM.
...
Yes, this is new payload structure for RDM.
Up until this point all of the responses that could generate an ACK_OVERFLOW consisted of a single repeating data structure without any header.
...
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Forum: RDM General Implementation Discussion
December 13th, 2019
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Replies: 11
Views: 23,216
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Forum: RDM General Implementation Discussion
December 4th, 2019
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Replies: 17
Views: 24,248
The maximum allowed delay for a transparent...
The maximum allowed delay for a transparent inline device is 88us, so you can't wait for the CC 01. By the time you receive the CC 01 there's already been too much delay. You typically have to...
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Forum: RDM General Implementation Discussion
September 9th, 2019
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Replies: 9
Views: 18,611
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Forum: RDM General Implementation Discussion
August 30th, 2019
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Replies: 17
Views: 24,248
Both architectures are valid. You can decide...
Both architectures are valid. You can decide which you prefer.
Yes, this can work. The microcontroller has to watch all of the ports and determine which is active, then receive bytes and...
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Forum: RDM General Implementation Discussion
August 29th, 2019
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Replies: 17
Views: 24,248
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Forum: RDM Interpretation Questions
July 30th, 2019
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Replies: 6
Views: 12,896
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Forum: RDM Interpretation Questions
July 30th, 2019
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Replies: 6
Views: 12,896
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Forum: RDM General Implementation Discussion
March 5th, 2019
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Replies: 9
Views: 18,611
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Forum: RDM General Implementation Discussion
March 4th, 2019
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Replies: 9
Views: 18,611
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Forum: RDM General Implementation Discussion
December 19th, 2018
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Replies: 19
Views: 32,632
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Forum: RDM Interpretation Questions
December 17th, 2018
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Replies: 16
Views: 22,040
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Forum: RDM Interpretation Questions
December 16th, 2018
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Replies: 16
Views: 22,040
Peter,
There can be endless battles...
Peter,
There can be endless battles about which NACK Reason Code to use in a myriad of situations. There's no "right" answer to many of those cases. This is especially true when looking at...
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Forum: RDM General Implementation Discussion
December 12th, 2018
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Replies: 19
Views: 32,632
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Forum: RDM Interpretation Questions
December 10th, 2018
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Replies: 16
Views: 22,040
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Forum: RDM Interpretation Questions
December 3rd, 2018
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Replies: 16
Views: 22,040
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Forum: RDM Interpretation Questions
December 3rd, 2018
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Replies: 16
Views: 22,040
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Forum: RDM Interpretation Questions
December 3rd, 2018
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Replies: 16
Views: 22,040
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Forum: RDM Interpretation Questions
November 16th, 2018
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Replies: 8
Views: 13,220
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Forum: DMX512 Discussion
November 8th, 2018
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Replies: 1
Views: 7,041
It's not a requirement in the standard, but in...
It's not a requirement in the standard, but in general it's best to also discard the previous slots.
The most common cause of framing errors is contact bounce while plugging/unplugging a cable....
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Forum: RDM Interpretation Questions
November 2nd, 2018
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Replies: 19
Views: 22,333
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Forum: RDM Interpretation Questions
November 2nd, 2018
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Replies: 19
Views: 22,333
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Forum: RDM General Implementation Discussion
October 25th, 2018
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Replies: 2
Views: 9,177
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Forum: RDM General Implementation Discussion
October 24th, 2018
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Replies: 4
Views: 11,082
We have a lot of experience with the protocols...
We have a lot of experience with the protocols here, but not much experience with any particular microcontroller. I suspect the answer will depend on the behavior of the specific PWM block in your...
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Forum: RDM General Implementation Discussion
September 5th, 2018
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Replies: 28
Views: 36,161
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Forum: RDM General Implementation Discussion
September 4th, 2018
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Replies: 28
Views: 36,161
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Forum: RDM Interpretation Questions
June 11th, 2018
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Replies: 4
Views: 13,284
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Forum: RDM Interpretation Questions
May 15th, 2018
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Replies: 4
Views: 10,597
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Forum: RDM Interpretation Questions
May 14th, 2018
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Replies: 4
Views: 10,597
In my opinion, if you've validated the request...
In my opinion, if you've validated the request and have started making the change it's OK to ACK it rather than ACK_TIMER.
If the set is is going to take a long time (multiple seconds) then you...
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Forum: RDM General Implementation Discussion
May 13th, 2018
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Replies: 2
Views: 9,595
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Forum: RDM Physical Layer/Hardware Discussion
April 30th, 2018
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Replies: 2
Views: 16,524
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Forum: RDM Interpretation Questions
March 15th, 2018
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Replies: 19
Views: 22,333
This is a common problem.
When a responder...
This is a common problem.
When a responder receives a unicast request it can take up to 2ms to respond. So, if the responder software takes a while to parse the request and respond, the...
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Forum: RDM Interpretation Questions
March 14th, 2018
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Replies: 19
Views: 22,333
Are you sure the SET didn't happen before the 7...
Are you sure the SET didn't happen before the 7 messages you're showing in the screenshot? The OLA tests can generate detailed logs. I don't remember the command line option, but it should give you...
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Forum: DMX512 Discussion
January 23rd, 2018
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Replies: 10
Views: 14,522
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Forum: RDM Interpretation Questions
December 14th, 2017
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Replies: 19
Views: 22,333
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Forum: DMX512 Discussion
November 22nd, 2017
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Replies: 4
Views: 10,585
If you want to troubleshoot it, you'll need to...
If you want to troubleshoot it, you'll need to look closely at the signal timing (min/max for break length, MAB length, byte spacing, etc.).
There are a lot of poorly implemented DMX devices out...
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Forum: DMX512 Discussion
November 21st, 2017
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Replies: 4
Views: 10,585
The refresh rate ("Hz") tells you basically...
The refresh rate ("Hz") tells you basically nothing. What matters is the timing of the individual elements within the DMX packet. We can't really answer your question without having a lot more...
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Forum: RDM Physical Layer/Hardware Discussion
July 23rd, 2017
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Replies: 1
Views: 7,464
The controller found your responder via DUB. ...
The controller found your responder via DUB. When it tried to mute the responder, it didn't get a valid response. There was activity on the line during the response period (either noise or data),...
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Forum: RDM General Implementation Discussion
June 29th, 2017
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Replies: 2
Views: 9,050
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Forum: RDM General Implementation Discussion
June 19th, 2017
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Replies: 4
Views: 10,740
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Forum: RDM General Implementation Discussion
May 9th, 2017
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Replies: 17
Views: 24,248
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Forum: RDM General Implementation Discussion
May 8th, 2017
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Replies: 17
Views: 24,248
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Forum: RDM General Implementation Discussion
May 8th, 2017
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Replies: 3
Views: 10,685
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Forum: RDM General Implementation Discussion
May 5th, 2017
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Replies: 3
Views: 10,685
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Forum: RDM Marketplace Discussion
March 18th, 2017
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Replies: 2
Views: 14,599
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Forum: RDM Physical Layer/Hardware Discussion
February 16th, 2017
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Replies: 1
Views: 9,793
I generally like to isolate everything...
I generally like to isolate everything (controllers and responders). The preferred topology in E1.11 is to have ground referenced controllers and isolated responders, but since you don't know what...
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Forum: RDM General Implementation Discussion
September 1st, 2016
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Replies: 25
Views: 28,075
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Forum: RDM General Implementation Discussion
August 17th, 2016
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Replies: 17
Views: 24,248
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Forum: RDM General Implementation Discussion
August 11th, 2016
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Replies: 17
Views: 24,248
It would depend on which tests are failing. For...
It would depend on which tests are failing. For example, some of the tests are looking at corner cases that will never happen in the real world and are mostly intended to test error handling in the...
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Forum: RDM Interpretation Questions
July 27th, 2016
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Replies: 13
Views: 23,705
Yes, the DEFAULT_SLOT_VALUE response will be...
Yes, the DEFAULT_SLOT_VALUE response will be different depending on which DMX_PERSONALITY is currently active.
Many standard PIDs will have different responses depending on the current...
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Forum: RDM General Implementation Discussion
July 22nd, 2016
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Replies: 9
Views: 15,593
Yes, null termination of strings is allowed.
...
Yes, null termination of strings is allowed.
10.1 says:
Text fields shall terminate based on Parameter Data Length, however if a NULL is encountered then that shall also act as a terminator for...
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Forum: RDM General Implementation Discussion
June 30th, 2016
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Replies: 5
Views: 13,651
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Forum: RDM General Implementation Discussion
June 30th, 2016
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Replies: 5
Views: 13,651
To answer your specific question:
In my...
To answer your specific question:
In my controllers, I allow:
1: Break followed by a proper RDM Response
2: Multiple breaks followed by a proper RDM Response
3: Data Bytes, followed by one...
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Forum: RDM General Implementation Discussion
June 30th, 2016
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Replies: 5
Views: 13,651
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Forum: RDM General Implementation Discussion
March 21st, 2016
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Replies: 17
Views: 24,248
There's no "right" way to do it. There are...
There's no "right" way to do it. There are successful splitters using all kinds of different architectures: Pure hardware, Pure software, Mixed hardware+software.
Your major constraints are:...
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Forum: RDM Interpretation Questions
February 24th, 2016
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Replies: 1
Views: 9,013
Asymmetrical Sub-devices have long been a grey...
Asymmetrical Sub-devices have long been a grey area. The problem you're raising is similar to when you have a dimmer rack with both dimmer and relay modules installed. There are PIDs that make sense...
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Forum: RDM Interpretation Questions
February 24th, 2016
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Replies: 1
Views: 9,113
Including my thoughts here for the discussion...
Including my thoughts here for the discussion (Peter and I discussed this earlier):
Manufacturer specific PIDs are supposed to be the same for all devices from the same manufacturer, Thus, as...
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Forum: RDM Interpretation Questions
February 24th, 2016
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Replies: 3
Views: 11,158
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Forum: RDM General Implementation Discussion
February 10th, 2016
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Replies: 28
Views: 36,161
We'd need a *lot* more information about your...
We'd need a *lot* more information about your setup before we can provide any help. There are many different ways you can implement an RDM Responder in software, and the software architecture is...
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Forum: RDM Marketplace Discussion
February 5th, 2016
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Replies: 2
Views: 11,997
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Forum: RDM General Implementation Discussion
February 1st, 2016
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Replies: 4
Views: 13,449
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