2013/5/12 Andrew parallel.kinemat...@gmail.com
OK, I see now. There's a workaround for the problem.
http://linuxcnc.org/lucid/emc2/index.php/italian/forum/24-hal-components/6487-pid-pin-problems
Could You, please, explain, how does it solve the problem? OUT pin cannot
be connected to IO
On 5/11/2013 3:52 PM, Andrew wrote:
An IO pin can be connected unless there’s an OUT pin on the signal
An OUT pin can be connected only if there are no other OUT or IO pins on
the signal
Regards,
Kent
Yes,
I have read that too. I fail to understand what is the meaning of an IO
pin? It is
2013/5/12 Viesturs Lācis viesturs.la...@gmail.com
Could You, please, explain, how does it solve the problem? OUT pin cannot
be connected to IO pin. That solution proposes inserting passthru
component in the middle, so initial OUT is linked to passthru.in and
initial IO is connected to
2013/5/12 Viesturs Lācis viesturs.la...@gmail.com
Could You, please, explain, how does it solve the problem? OUT pin cannot
be connected to IO pin. That solution proposes inserting passthru
component in the middle, so initial OUT is linked to passthru.in and
initial IO is connected to
2013/5/12 Viesturs Lācis viesturs.la...@gmail.com
Could You, please, explain, how does it solve the problem? OUT pin cannot
be connected to IO pin. That solution proposes inserting passthru
component in the middle, so initial OUT is linked to passthru.in and
initial IO is connected to
On 05/11/2013 02:19 PM, Lars Andersson wrote:
Hi group,
Trying to control servo P I and D at runtime with potentiometers to
practise loop optimising.
The statement
net P0 input.0.abs-rx-position == pid.0.Pgain
gives me
servo2.hal:35: Signal 'P0' can not add I/O pin 'pid.0.Pgain', it
On 5/12/2013 3:39 AM, Lars Andersson wrote:
On 5/11/2013 3:52 PM, Andrew wrote:
An IO pin can be connected unless there’s an OUT pin on the signal
An OUT pin can be connected only if there are no other OUT or IO pins on
the signal
Regards,
Kent
Yes,
I have read that too. I fail to
2013/5/12 Kent A. Reed kentallanr...@gmail.com
I admit I struggled to wrap my brain around this notion when I first
read the LinuxCNC docs.
Syntactically, there is a difference in these pin types simply because
the parsing rules in halcmd say there is a difference. In particular,
the two
On 5/12/2013 6:02 AM, Lars Andersson wrote:
The symbol == is new to me.
Lars:
'=' denotes bidirectional signal flow and is the symbol intended to
correspond to IO pins as opposed to IN or OUT pins.
Remember, though, the quote from the docs in my earlier message---these
direction-indicator
On Sunday 12 May 2013 10:08:08 Kent A. Reed did opine:
On 5/12/2013 6:02 AM, Lars Andersson wrote:
The symbol == is new to me.
Lars:
'=' denotes bidirectional signal flow and is the symbol intended to
correspond to IO pins as opposed to IN or OUT pins.
Remember, though, the quote
On 11 May 2013 20:19, Lars Andersson l...@larsandersson.com wrote:
Trying to control servo P I and D at runtime with potentiometers to
practise loop optimising.
As you have seen, an underlying problem is that the Gains are IO pins.
They used to be parameters, but it was decided that pins would
On 11 May 2013 20:19, Lars Andersson l...@larsandersson.com wrote:
Trying to control servo P I and D at runtime with potentiometers to
practise loop optimising.
As you have seen, an underlying problem is that the Gains are IO pins.
They used to be parameters, but it was decided that pins
On 11 May 2013 20:19, Lars Andersson l...@larsandersson.com wrote:
Trying to control servo P I and D at runtime with potentiometers to
practise loop optimising.
As you have seen, an underlying problem is that the Gains are IO pins.
They used to be parameters, but it was decided that pins
Kent A. Reed wrote:
On 5/12/2013 6:02 AM, Lars Andersson wrote:
The symbol == is new to me.
Lars:
'=' denotes bidirectional signal flow and is the symbol intended to
correspond to IO pins as opposed to IN or OUT pins.
It is important to remember that these symbols ( =, =,
Hi group,
Trying to control servo P I and D at runtime with potentiometers to
practise loop optimising.
The statement
net P0 input.0.abs-rx-position == pid.0.Pgain
gives me
servo2.hal:35: Signal 'P0' can not add I/O pin 'pid.0.Pgain', it already
has OUT pin 'input.0.abs-rx-position'
halcmd:
2013/5/11 Lars Andersson l...@larsandersson.com
Hi group,
Trying to control servo P I and D at runtime with potentiometers to
practise loop optimising.
The statement
net P0 input.0.abs-rx-position == pid.0.Pgain
gives me
servo2.hal:35: Signal 'P0' can not add I/O pin 'pid.0.Pgain', it
2013/5/11 Lars Andersson l...@larsandersson.com
Yes, input.0.abs-rx-position is an out pin, it is the value from a
potentiometer. My wish is to feed this into the PID Pgain IO pin so I
can modify Pgain by turning a knob. I find that net seems to treat OUT
and IO pins equal. setp makes a
On 5/11/2013 3:52 PM, Andrew wrote:
I guess that == might be wrong
Quoting from the Basic HAL Tutorial section on net:
The command net creates a connection between a signal and and one or
more pins. If the signal does not exist net creates the new signal. This
replaces the need to use the
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