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Forum: RDM Physical Layer/Hardware Discussion February 15th, 2017
Replies: 1
Views: 2,174
Posted By berntd
Hardware: Grounding of host. Opinions?

Hello

I have been grappling with this for a while.

If I build a DMX transmitter / RDM host, what should I do with the RS485 Common?

My standard way is to be a non isolated transmitter as per...
Forum: RDM General Implementation Discussion June 30th, 2016
Replies: 5
Views: 3,892
Posted By berntd
Thanks everyone. It is more of a question as...

Thanks everyone.

It is more of a question as to how to handle it and not as much as finding an actual cause. IU was not able to find out in the spec of what shoudl happen in such a case.
...
Forum: RDM General Implementation Discussion June 29th, 2016
Replies: 5
Views: 3,892
Posted By berntd
How should master handle receiving DMX after sending request?

Hello

We have just come across this and wonder how to handle it.

Master sends a request and waits the prescribed period for a response.

However, somethng else on the line sends a short DMX...
Forum: RDM Timing Discussion May 26th, 2015
Replies: 10
Views: 8,765
Posted By berntd
Great minds think alike. as I type this,...

Great minds think alike.

as I type this, our porgrammer is trying to split the reception into to DMA transfers.
First after 3 bytes to get the length and then another transfer for the rest.
...
Forum: RDM Timing Discussion May 26th, 2015
Replies: 10
Views: 8,765
Posted By berntd
Eric, I know. The responder has no chance...

Eric, I know.

The responder has no chance of processing the packet due to OS lag. that is why we are responding with ACK_TIMER as already discussed in another thread here.

I am not sure how...
Forum: RDM Timing Discussion May 26th, 2015
Replies: 10
Views: 8,765
Posted By berntd
Hi again I have just concluded the...

Hi again

I have just concluded the following:

The controller timing has to allow 2.8ms for a responder to answer.

Interpreting that, any controller must thus wait 2.8ms to recieve a...
Forum: RDM Timing Discussion May 26th, 2015
Replies: 10
Views: 8,765
Posted By berntd
Hi and thanks. This is a responder based on...

Hi and thanks.

This is a responder based on a Linux non real time environment.
The OS is busy doing heaps of other stuff so we are not able to use interrupts as it takes too much cpu time and we...
Forum: RDM Timing Discussion May 25th, 2015
Replies: 10
Views: 8,765
Posted By berntd
Responder Packet Timing issue

Hello

We have just ran into a problem with the timinig as follows:

Table 3-3 Resonder Packet Timing
Line 1 Receive: Inter-slot time Max = 2.1ms


Table 3-4
Line 1 Controller request...
Forum: RDM General Implementation Discussion April 12th, 2015
Replies: 3
Views: 4,848
Posted By berntd
Yes, understood. My understanding is that...

Yes, understood.

My understanding is that only discovery messages are not alowed ACK_TIMER.

I don't think they (software guru) meant that the ACK_TIMER will be very long. It is just that he...
Forum: RDM General Implementation Discussion April 12th, 2015
Replies: 3
Views: 4,848
Posted By berntd
What is the genral opinion about using ACK_TIMER for...

Hi

We have a new device application which does not use a real time OS.
Our software guru has told me that he want to use the ACK_TIMER reply to every single rdm command (not discovery).
Once...
Forum: RDM Interpretation Questions April 8th, 2014
Replies: 5
Views: 4,775
Posted By berntd
Since about 2008 I have been using the same model...

Since about 2008 I have been using the same model ID and description for the same dimmer range we make.

The subdevices count has been different for the channel variants.

The variants all run...
Forum: RDM Interpretation Questions April 7th, 2014
Replies: 5
Views: 4,775
Posted By berntd
Hi Scott That is what I thought. It has been...

Hi Scott
That is what I thought. It has been done that way for some years now but I just wanted to check because I am working on something new.

Regards
Bernt
Forum: RDM Interpretation Questions April 7th, 2014
Replies: 5
Views: 4,775
Posted By berntd
DEVICE_INFO - Device model ID

Hello

It has been a while again since I worked on RDM.
Does the model ID have to be different for devices of the same tyoe but with a different channel no?

I am asking here about dimmers in...
Forum: RDM Physical Layer/Hardware Discussion October 31st, 2013
Replies: 2
Views: 5,013
Posted By berntd
DMX splitter with Rdm - design

Hello

I am looking at designing a new DMX splitter. The question is whether I can make it RDM compliant or not, given the cost retraints.

Can one have such a splitter without a whole Proxy...
Forum: RDM General Implementation Discussion October 31st, 2013
Replies: 2
Views: 3,218
Posted By berntd
QUEUED_MESSAGE - must controllers support this?

Hello group

Am just wondering about the queued messages again.
We have a controller here which does not fetch them from our device.
One needs to rediscover to update anything from the device....
Forum: RDM Interpretation Questions September 26th, 2013
Replies: 1
Views: 3,216
Posted By berntd
Please clarify: QUEUED_MESSAGE (10.3 Collection of Queued and Status Messages)

Hello

I need clarification on section 10.3.1 please.

It states (10.3.1 3rd paragraph p46) that if there are no queued messages pending, the device will respond with a status message(s)...
Forum: RDM General Implementation Discussion August 15th, 2013
Replies: 13
Views: 6,371
Posted By berntd
Hello again One more question... My...

Hello again

One more question...

My subdevice labels (DEVICE_LABEL) are linked to the root label + some extension.
Do I need to generate QUEUED_MESSAGE for each subdevice DEVICE_LABEL when...
Forum: RDM General Implementation Discussion August 1st, 2013
Replies: 13
Views: 6,371
Posted By berntd
Hi again Ok, I have changed it so the...

Hi again

Ok, I have changed it so the MODEL_DESCRIPTION is not the same for all subdevices and the DEVICE_LABEL differs.

Now, the Enttech USB Pro shows me the same MODEL_DESCRIPTION as...
Forum: RDM General Implementation Discussion August 1st, 2013
Replies: 13
Views: 6,371
Posted By berntd
Thanks Scott Whould the model ID for each...

Thanks Scott

Whould the model ID for each subdevice be the same as for the root device?
Forum: RDM General Implementation Discussion August 1st, 2013
Replies: 13
Views: 6,371
Posted By berntd
Hi Scott There is only 1 single model ID...

Hi Scott

There is only 1 single model ID for the whole unit.HOwever, the DEVICE_MODEL_DESCRIPTION is different for each subdevice at the moment.

Should I change it?
I could stop supporting...
Forum: RDM General Implementation Discussion August 1st, 2013
Replies: 13
Views: 6,371
Posted By berntd
Hi I have added the support for...

Hi

I have added the support for DEVICE_LABEL on GET with the subdevices.

I am interested in what Eric wrote in that he has seen the labels being "Channel 1" etc. I have this but I have used...
Forum: RDM General Implementation Discussion July 30th, 2013
Replies: 13
Views: 6,371
Posted By berntd
Thanks Scott. We will also be contacting...

Thanks Scott.

We will also be contacting ETC to see what they think.

Best regards
Bernt
Forum: RDM General Implementation Discussion July 30th, 2013
Replies: 13
Views: 6,371
Posted By berntd
Hi Thanks for the reply! Good to see that...

Hi

Thanks for the reply!
Good to see that things are still active!
It has been quite a while since I worked on RDM so everything has gone rusty
:confused:

It has been so long that I can't...
Forum: RDM General Implementation Discussion July 30th, 2013
Replies: 13
Views: 6,371
Posted By berntd
Subdevice labelling question

Hello
I hope this forum is still active...

I have a device with subdevices (channels of the root device).

The root supports DEVICE_LABEL (GET SET) but my subdevices do not support that.
...
Forum: RDM General Implementation Discussion May 30th, 2012
Replies: 4
Views: 5,112
Posted By berntd
Hello and thanks. I was only considering it...

Hello and thanks.

I was only considering it becaue the actual assignment of the UID is a process which our manufacturers struggle with and it is easy to get it wrong or not do it alltogther.

...
Forum: RDM General Implementation Discussion May 28th, 2012
Replies: 4
Views: 5,112
Posted By berntd
RDM Master UID assignment question

Hello

Can I make all the RDM masters of a certain type of product/ model have the same UID?

I am just wondering because there can only ever be one master on the bus so it should not matter.
...
Forum: RDM General Implementation Discussion December 13th, 2010
Replies: 2
Views: 5,094
Posted By berntd
Sorry, my question has been answered.

Sorry, my question has been answered.
Forum: RDM General Implementation Discussion May 24th, 2010
Replies: 33
Views: 15,920
Posted By berntd
Hello I have for the moment made it a...

Hello

I have for the moment made it a GET_COMMAND_RESPONSE with the logic that QUEUED_MESSAGES is a GET_COMMAND.

If we want to have a SET_COMMAND_RESRESPONSE, then most queued messages would...
Forum: RDM General Implementation Discussion May 23rd, 2010
Replies: 33
Views: 15,920
Posted By berntd
Hello, Are the responces always of CC =...

Hello,

Are the responces always of CC = GET_COMMAND_RESPOSE ?

Example, DEVICE_RESET.
My device has reset and I am generating a queued message.
Is that message GET_COMMAND_RESPOSE ?

I...
Forum: RDM General Implementation Discussion May 19th, 2010
Replies: 33
Views: 15,920
Posted By berntd
Hello, So far so good. One more thing: ...

Hello,

So far so good.
One more thing:
What happens with the STATUS_GET_LAST_MESSAGE response if
there is no last message to resend (sort of after power up etc)?

Regards
Bernt
Forum: RDM General Implementation Discussion May 18th, 2010
Replies: 33
Views: 15,920
Posted By berntd
Hello, Ok, understood. Simple. But...

Hello,

Ok, understood. Simple.

But where in the response does the responder set which subdevice is actualluy responding? Is it just byte 3/4 ?

In other words does the controller Send...
Forum: RDM General Implementation Discussion May 17th, 2010
Replies: 33
Views: 15,920
Posted By berntd
Hello I am finally getting round to implement...

Hello I am finally getting round to implement some Queued Messages.

Of course I am now rusty on this so first problem I now have is what about subdevices?

What if someone changes the DMX...
Forum: RDM General Implementation Discussion March 2nd, 2010
Replies: 33
Views: 15,920
Posted By berntd
Hi Eric I have understood that and I am...

Hi Eric

I have understood that and I am looking into it :)

However, the GET_LAST_MESSAGE will need special attention or do you then just store the bit number / mask of the last message...
Forum: RDM General Implementation Discussion March 2nd, 2010
Replies: 33
Views: 15,920
Posted By berntd
:D ! Bernt

:D !

Bernt
Forum: RDM General Implementation Discussion March 2nd, 2010
Replies: 33
Views: 15,920
Posted By berntd
Also true but how would that work for the same...

Also true but how would that work for the same PID across 12/24 subdevices?

Example: The operating mode of the device is changed. This can change:
1: The preheat value
2: The DMX personality,...
Forum: RDM General Implementation Discussion March 2nd, 2010
Replies: 33
Views: 15,920
Posted By berntd
True but we are not designing new hardware here...

True but we are not designing new hardware here we are issuing new software for existing products.

Even the fairly new microchip PICs with 16 bit core have 2048 bytes of RAM. Some have 4k RAM.
...
Forum: RDM General Implementation Discussion March 2nd, 2010
Replies: 33
Views: 15,920
Posted By berntd
Hello, Here is an example: A root...

Hello,

Here is an example:

A root device parameter is changed on the front panel of the device or with RDM.

This results in several parameters in each of up to 24 subdevices to change....
Forum: RDM General Implementation Discussion March 1st, 2010
Replies: 33
Views: 15,920
Posted By berntd
Hi Scott How can that be? The...

Hi Scott

How can that be?

The specification does not mandate queued messages nor does it mandate the specific contents of supported queued mesages.

To assume that even if queued messages...
Forum: RDM General Implementation Discussion March 1st, 2010
Replies: 33
Views: 15,920
Posted By berntd
Refreshing of paramters need Queued Messages?

Hello,

I am just having this converstion with someone and I am now wondering.

I thought a controller should either manually (button) or periodically refresh paramters FROM a device.
...
Forum: RDM General Implementation Discussion November 29th, 2009
Replies: 4
Views: 4,962
Posted By berntd
Hello, Thank yopu Scott, Peter. Ok,...

Hello,

Thank yopu Scott, Peter.

Ok, so the PID is unique to the manufaturer code and not the model code.
That is easy and makes sense.

I do not understand the adding of offset x8000 to a...
Forum: RDM General Implementation Discussion November 26th, 2009
Replies: 4
Views: 4,962
Posted By berntd
Manufacturer Specific Pids

Hello all,

What is the general concesus about manufacturer specific PIDs?

Should a manufacturer use a specific PID only once or should they be start at 8000 for each different model but...
Forum: RDM General Implementation Discussion November 8th, 2009
Replies: 9
Views: 6,293
Posted By berntd
QUEUED_MESSAGE - ?

Hello,

I am not sure how to tread this pid. Currenlty I am not supporting it as it isn;t mandatory but I noticed earlier today that the 2 controllers (theya re not related) I have available here...
Forum: RDM General Implementation Discussion October 28th, 2009
Replies: 3
Views: 5,135
Posted By berntd
Hi Peter, Our immediate requirement would...

Hi Peter,

Our immediate requirement would be for reporting some sort of POWER_FAULT.

My direct application is for the detection of a Neutral / Earth fault. This happens when a voltage between...
Forum: RDM Interpretation Questions October 22nd, 2009
Replies: 10
Views: 6,629
Posted By berntd
Yep, they are still out there. we get them too,...

Yep, they are still out there. we get them too, occasionally.

Someone somewhere is still writing code like that!

Regards
Bernt
Forum: RDM Interpretation Questions October 22nd, 2009
Replies: 10
Views: 6,629
Posted By berntd
Yep, it is a bit like ignoring the DMX_START_CODE...

Yep, it is a bit like ignoring the DMX_START_CODE == 0.
Look where that got us in the end :D:D


Anyway, should I now perform the same reset for warm and cold or ignore / NACK the one I...
Forum: RDM Interpretation Questions October 22nd, 2009
Replies: 10
Views: 6,629
Posted By berntd
Hi Scott, I see where you are coming from...

Hi Scott,

I see where you are coming from and I suppose one could do the reset for both types requessted.
However, what you say about "any value" somehow does not sound right.

Why else would...
Forum: RDM Interpretation Questions October 22nd, 2009
Replies: 10
Views: 6,629
Posted By berntd
RESET_DEVICE

Hi all

If a device can only support one of the 2 reset types (cold/warm) than should it NACK the other as NR_DATA_OUT_OF_RANGE or should it just ACK and not do anything?

Also, should a warm...
Forum: RDM General Implementation Discussion October 20th, 2009
Replies: 17
Views: 10,507
Posted By berntd
I got it now.:cool: Thanks Eric.

I got it now.:cool:
Thanks Eric.
Forum: RDM General Implementation Discussion October 20th, 2009
Replies: 17
Views: 10,507
Posted By berntd
Hello Eric, you have lost me.:( The way it...

Hello Eric,
you have lost me.:(
The way it sounds is like no matter what it asks for, it gets error warnings advisories all at once. How is that supposed to work?

Surely if it asks for ERRORS,...
Forum: RDM General Implementation Discussion October 20th, 2009
Replies: 3
Views: 5,135
Posted By berntd
Additional Status Message ID request?

Hello,

I need to report a power fault but there seems to be no suitable suitable ID.

The specific case is a Neutral-Earth fault.

Kind regards
Bernt
Forum: RDM General Implementation Discussion October 20th, 2009
Replies: 17
Views: 10,507
Posted By berntd
Hi Still nede some more clarification on...

Hi

Still nede some more clarification on STATUS_MESSAGES:

I see the controleer asks for the status type.

I then note that the responce carries a Status_type in each message.

Does...
Forum: RDM General Implementation Discussion October 20th, 2009
Replies: 17
Views: 10,507
Posted By berntd
Hei, Thanks Peter! I am still having...

Hei,

Thanks Peter!

I am still having trouble understanding the STATUS_MESSAGE.
Assume I do have a dimmer_on_fire error.

Now I supply this info when status is requested by the cotrlloer....
Forum: RDM Interpretation Questions October 19th, 2009
Replies: 13
Views: 10,242
Posted By berntd
Thanks for all the kind words and suggestions.:) ...

Thanks for all the kind words and suggestions.:)

Regards
Bernt
Forum: RDM Interpretation Questions October 19th, 2009
Replies: 13
Views: 10,242
Posted By berntd
Agreed but unfortunately not my decision :-( ...

Agreed but unfortunately not my decision :-(

Regards
Bernt
Forum: RDM General Implementation Discussion October 19th, 2009
Replies: 17
Views: 10,507
Posted By berntd
Hehe, dropping packets is a really easy way to do...

Hehe, dropping packets is a really easy way to do this becase it will simply happen as a byproduct of the unit being busy :-)
No coding required :cool:

B
Forum: RDM Interpretation Questions October 19th, 2009
Replies: 13
Views: 9,672
Posted By berntd
So does mine. Also, there are 9 leds shining...

So does mine. Also, there are 9 leds shining through the front.
I 'll have to wait and see what they come up with.

Kind regards
Bernt
Forum: RDM Interpretation Questions October 19th, 2009
Replies: 13
Views: 10,242
Posted By berntd
No, I didn't mean muticastor anthng that fancy. ...

No, I didn't mean muticastor anthng that fancy.
1 single device, 1 controller but device has built in control for the outputsvia whatever means.
Ok, I didn't expect the info as realtime either but...
Forum: RDM General Implementation Discussion October 19th, 2009
Replies: 17
Views: 10,507
Posted By berntd
In fact, too busy to even listen to packets...

In fact, too busy to even listen to packets because interrupts have to be off at some stage.

An "ACK_BUSY" (with a timer) would be rather useful in that instance:-)

Is dropping packets an...
Forum: RDM Interpretation Questions October 19th, 2009
Replies: 13
Views: 9,672
Posted By berntd
Interesting :-) I quote: "Unfortunately,...

Interesting :-)
I quote: "Unfortunately, Version 2.2 is not compatible with the 4200 units. "

I find it odd too but that is what they told me.
They are looking into it.

Kind regards
Bernt
Forum: RDM Interpretation Questions October 19th, 2009
Replies: 13
Views: 10,242
Posted By berntd
All true for simple devices BUT if a device also...

All true for simple devices BUT if a device also has faders, can play and mix scenes and chases and the output levels are acually a combination of all the differnt inputs, then seing what the slot...
Forum: RDM General Implementation Discussion October 19th, 2009
Replies: 17
Views: 10,507
Posted By berntd
Hello In relation to queued messages... ...

Hello
In relation to queued messages...

Is it implied that a controller will leave the device alone if it receives and ACK_TIMER?

In other words, is there a way to tell a controller not to...
Forum: RDM General Implementation Discussion October 19th, 2009
Replies: 17
Views: 10,507
Posted By berntd
STATUS_MESSAGES

Hello

Should I implement this pid?

I do not support queueed messages and all that but I do wnat to convey errorsa across lke overheating etc.
Would I have to support everything in table A-4...
Forum: RDM Interpretation Questions October 19th, 2009
Replies: 13
Views: 10,242
Posted By berntd
DEFAULT_SLOT_VALUE

Hello,

I assume the value of a slot is the dmx level.

We can retrieve the default value for a slot.
How do we retrieve the current value of a slot?

Kind regards
Bernt
Forum: RDM Interpretation Questions October 19th, 2009
Replies: 4
Views: 4,833
Posted By berntd
Hello, How does a controller figure out how...

Hello,

How does a controller figure out how mane scenes are available in a device?

This question also applies to some other commands - I suppose.

Kind regards
Bernt
Forum: RDM Interpretation Questions October 18th, 2009
Replies: 1
Views: 4,041
Posted By berntd
PRESET_PLAYBACK

Hello,

if the device does not support PRESET_PLAYBACK_ALL (table A-7)
should it NACK with DATA_OUT_OF_RANGE or ACK and ignore?

Likewise, if the device dioes not support the level setting of...
Forum: RDM Interpretation Questions October 18th, 2009
Replies: 4
Views: 4,833
Posted By berntd
CAPTURE_PRESET pdl?

Hello all,

the pdl for this is mentioned as either 2 or 8 but in the text (10.11.8) it mentiones that unused timing fields shall be set to 0.

Does this imply that the pdl is always 8?
...
Forum: RDM Interpretation Questions October 18th, 2009
Replies: 13
Views: 9,672
Posted By berntd
They have confirmed that the newer version CANNOT...

They have confirmed that the newer version CANNOT run on the 4200.
So, no need to get a dongle as it will not work.

I am currently talkin with them about all this.

Regards
Bernt
Forum: RDM Interpretation Questions October 18th, 2009
Replies: 13
Views: 9,672
Posted By berntd
No, I have been advised that 2.11 was the last...

No, I have been advised that 2.11 was the last version to work with the Gateway 4200. 2.2 is for the 4210 apparently and it needs a DOngle!

Regards
Bernt
Forum: RDM Interpretation Questions October 15th, 2009
Replies: 13
Views: 9,672
Posted By berntd
Hello, Yes but the controllers do not seem...

Hello,

Yes but the controllers do not seem to allow me to have dmx personalities on a subdevice when the dmx footprint is 0.

Regards
Bernt
Forum: RDM Interpretation Questions October 14th, 2009
Replies: 13
Views: 9,672
Posted By berntd
Don't worry. Forums are exactly for the purpose...

Don't worry. Forums are exactly for the purpose of sharing opinions :cool:

That said, the Enttech controller pops up a fader or set of faders (depending on root or subdevice) if "DeviceControl"...
Forum: RDM General Implementation Discussion October 14th, 2009
Replies: 19
Views: 11,765
Posted By berntd
SLOT_INFO ?

Hello all,

Should I implement SLOT_INFO for my subdevices?
With my current setup of 1 subdevice per channel, should they be ST_PRIMARY or ST_UNDEFINED and also, I am thinkink of making the ID =...
Forum: RDM Interpretation Questions October 14th, 2009
Replies: 13
Views: 9,672
Posted By berntd
SLOT_DESCRIPTION

Hello,

Get SLOT_DESCRIPTION for a subdevice:

Is the slot offset always 0 if the subdevice has a footprint of 1?
Is this true although its DMX address is = unit base address + nSubdev?
...
Forum: RDM General Implementation Discussion October 13th, 2009
Replies: 19
Views: 11,765
Posted By berntd
I agree fully. Certifications should be done by...

I agree fully. Certifications should be done by test houses.
Forum: RDM General Implementation Discussion October 13th, 2009
Replies: 19
Views: 11,765
Posted By berntd
Hi Eric, With reporting 12 for subdevices,...

Hi Eric,

With reporting 12 for subdevices, nothing has changed at all.
Infogate still shows DMX address and footprint = 0 for all subdevices.
Sensors are still showing "Sensor#1" as before (no...
Forum: RDM General Implementation Discussion October 13th, 2009
Replies: 19
Views: 11,765
Posted By berntd
Hi Eric, I interpreted this by stating that...

Hi Eric,

I interpreted this by stating that stating that a subdevice has NO subdevices. Hence I report 0 for subdevices in the subdevice info. I just noticed that this is a WRONG assumption as p...
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