Hi Gerald,
You can find attached both two protocols used by M2 rotators.
Also you can use my PstRotator program and a free serial port monitor to see
the messages to and from your rotator.
73, Codrut - YO3DMU
--- On Mon, 9/27/10, TexasRF@aol.com <TexasRF@aol.com> wrote:
From: TexasRF@aol.com <TexasRF@aol.com>
Subject: Re: [TowerTalk] RS-232 control of M2 Rotator
To: yo3dmu@yahoo.com, n6kj.kelly@gmail.com
Cc: towertalk@contesting.com
Date: Monday, September 27, 2010, 3:13 PM
Hi Codrut, do you know the send and receive data format for the M2 rotator?
73,
Gerald K5GW
In a message dated 9/27/2010 3:06:58 P.M. Central Daylight Time,
yo3dmu@yahoo.com writes:
Hi,
You can try this software:
http://www.qsl.net/yo3dmu/index_Page346.htm
73, Codrut - YO3DMU
--- On Mon, 9/27/10, TexasRF@aol.com <TexasRF@aol.com> wrote:
From: TexasRF@aol.com <TexasRF@aol.com>
Subject: Re: [TowerTalk] RS-232 control of M2 Rotator
To: n6kj.kelly@gmail.com, guy_molinari@hotmail.com
Cc: towertalk@contesting.com
Date: Monday, September 27, 2010, 2:39 PM
Would those unprintable characters perhaps be the data you are looking for?
Many devices like this return ascii values that require further
manipulation to derive actual position data.
US Digital encoders for example return three characters, first is device
address, second is most significant byte and finally the least significant
byte. The address is discarded or used for verification, the ascii value of
the second character is multiplied by 256 and added to the ascii value of
the third character to give position data. That number is further manipulated
to allow for the resolution of the sending device.
I don't have first hand experience with the M2 unit so all of this may well
be irrelevant.
73,
Gerald K5GW
In a message dated 9/27/2010 2:29:45 P.M. Central Daylight Time,
n6kj.kelly@gmail.com writes:
As I mentioned in the original e-mail: this port was known to work
properly with other applications in the past. I will double-check
when I get home to make sure that is still the case.
I am not using a null modem cable. If I were, then I'd get no data
from the rotator controller rather than a response that appears to be
sent at a different baud rate. Everytime I power cycle the rotator
controller, it outputs data that I can see in hyperterm.
Unfortunately, the data is just a few unprintable characters; the kind
of thing I usually expect to see when the port configurations are not
correct.
On Mon, Sep 27, 2010 at 12:05 PM, Guy Molinari <guy_molinari@hotmail.com>
wrote:
> Have you verified that the port on the computer works when connected to
> another device?
>
> Also, another problem is proper cabling. Are you using a "null modem"
> cable (pins 2 and 3 reversed at each end)? Or is it a straight through
> cable (not reversed).
>
>
>> Date: Mon, 27 Sep 2010 12:02:41 -0700
>> From: n6kj.kelly@gmail.com
>> To: guy_molinari@hotmail.com
>> CC: towertalk@contesting.com
>> Subject: Re: [TowerTalk] RS-232 control of M2 Rotator
>>
>> Yes, I'm aware of that. I have hyperterm set up for 8-N-1. I've
>> tried that combination with nearly every baud rate possible, but still
>> nothing.
>>
>> On Mon, Sep 27, 2010 at 11:49 AM, Guy Molinari
<guy_molinari@hotmail.com>
>> wrote:
>> >
>> > There are 3 parameters for RS-232 communication.
>> >
>> > 1) Baud rate
>> > 2) Parity bit (0 or 1)
>> > 3) Number of stop bits (0, 1 or 2).
>> >
>> > I believe the M2 rotator is expecting none for the parity bits (0)
and 1
>> > stop bit.
>> >
>> > 73,
>> > Guy, N7ZG
>> >
>> >> Date: Mon, 27 Sep 2010 11:31:04 -0700
>> >> From: n6kj.kelly@gmail.com
>> >> To: towertalk@contesting.com
>> >> Subject: [TowerTalk] RS-232 control of M2 Rotator
>> >>
>> >> I'm trying to remote my home station. The last piece of the puzzle
>> >> for (non-QRO) operation is the rotator. I've tried several things to
>> >> get RS-232 control of my M-Squared rotator to work, but so far no
>> >> luck. The rotator control box seems to be trying to communicate. I'm
>> >> using the standard M-Squared control box. I see data coming back from
>> >> the rotator, but it appears to be the wrong baud rate. I've tried
>> >> every baud rate (including the one that the manual claims should
work)
>> >> so far with no luck. I've tried controlling it with Hyperterm and
>> >> with DX4WIN. Neither works. This serial port works fine for other
>> >> purposes. This is a real RS-232 port; not a USB-to-serial converter.
>> >> Anyone got any tips before I call M-Squared?
>> >> _______________________________________________
>> >>
>> >>
>> >>
>> >> _______________________________________________
>> >> TowerTalk mailing list
>> >> TowerTalk@contesting.com
>> >> http://lists.contesting.com/mailman/listinfo/towertalk
>> >
>> > _______________________________________________
>> >
>> >
>> >
>> > _______________________________________________
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>> > TowerTalk@contesting.com
>> > http://lists.contesting.com/mailman/listinfo/towertalk
>> >
>> _______________________________________________
>>
>>
>>
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>
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