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I have some override preset buttons for  feed_percent_ , rapid_percent_,  spindle_percent_
I'm still doing simulation.Only on a MDI axis movement or run a program, if one of those buttons pressed, it doesn't release 
for about 5 seconds, and the DRO doesn't update for the same period. Otherwise it switches instantly. There is no plotter at the moment.

and more:
_To display 'rotation_xy_lb' (returns float), i am unable to set precision to 3 digits. Depending on calculation, it is filling the label.

_Is there something similar to bool label, but to display a .png? For spindle is on, or spindle at speed and others it would be a good alternative to text.

 

The RPI5 needs the newer ( hm2_spix ) driver.

Yes, PWM is digital.

When I say voltage mode this means that the (average) motor voltage
is proportional to the PWM duty cycle..

This type of drive behaves like a velocity mode servo because the motor speed
is more or less directly proportional to the PWM duty cycle. That is why it is tuned
similarly to a velocity mode servo, where FF1 play a key role.

my try 
www.youtube.com/shorts/2hvAz5HbPGM

Ahhh,

When you say run y axis and a axis in tandem do you mean you have a 4th rotary axis (for cutting pipe) or just have 2 motors on the gantry that you need to move together?

For the first see my comment above......
For the second

Make a new config, select your "a axis" as tandem Y.

You will need homing switches on each of the 2 y axis so the joints can square themselves before becoming an axis. Once they are homed both will move at the same time and jog like normal.

No gcode changes for this one.

The 7i92t has 17 signal pins that are on the same pins as a parallel port. The gnd pins are on the same pins as well. So yes electrically it is the same.
The only thing is that some ground pins can be jumpered to supply 5v, the manual explains this.
The major difference being, your are not locked into pin direction as you are with a parallel port. The pin function (direction) is controlled by the bitfile loaded into the card.
So yes if a system previously used a parallel port, the 7i92t can with a suitable config be a "drop in replacement" with Linuxcnc. With the bonus of having an extra 17 Io pins on the second connector, so one could think of it as replacing 2 parallel ports.
Obviously one can not use it to actually connect to a printer to print.
If you compared the pinout on the ports of the 7i92t with that of a parallel port you will see the pins that have IO are connected physically to the same pins on a parallel port, as are the gnd pins,with the exception of those pins on the 7i92t that can be jumpered to supply 5v instead of being gnd pins.

Unfortunately my pi4 in the machine died. The 7c81 seems fine, i even reflashed the 7c81 with the right bitfile, just to be sure, no errors. So i switched to a pi5, but the previously working config gives me an error.


spi in the kernel config is activated.

Any ideas?

ซานโดร โพสต์=311023 รหัสผู้ใช้=27482เอาล่ะ นี่คือวิดีโอสั้นๆ ของเซอร์โวเหล่านี้ที่กำลังทำงาน

[วิดีโอ]

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Hi, I’d like to ask — which version of LinuxCNC and kernel are you currently running?

 

Hi, I’d like to ask — which version of LinuxCNC and kernel are you currently running?

Hi Uwe,
ich befinde mich auf einem ähnlichen Weg wie du. Ich integriere gerade meine Spindel und Servos iHSv57 über Ethercat, die Motoren und die Spindel lassen sich ansteuern, sind aber noch nicht eingerichtet. Dein Problem verstehe ich nicht so ganz, da cia402 fast die komplette Integration des Motion Systems händelt und du da garnicht mehr viel machen musst. PID musst du einstellen am Gerät über die RS232 Schnittstelle am Drive (USB Port) mit Hilfe der Software von JMC.

Grüße,
Pascal

After more research, RTFM, watching videos, I finally managed to produce a configuration with pncconf, but I doubt it will work. The question still remains:

If I have the proper configuration, can I connect the DB25 male connector from the lathe's control box directly to the DB25 female connector of the 7i92? I'm still thinking in very simple terms: the 7i92 can completely emulate the behaviour of a parallel port (including, IOs and GND pins).

Sorry if my questions show my ignorance, I'm trying to put the pieces of the puzzle together.

In this thread it was asked how to link parport signals to axis: forum.linuxcnc.org/21-axis/31791-how-to-...l-signal-to-axis-jog
and an example was given. 
Wouldn´t it be possible to link the AXIS screen status to the MPG signal  too? - so the other way round..
In other words use the selection chosen in AXIS of the axis and increment and link them to the jog mode, so that except the encoder no external elements for the axes and increment selection are necessary?
Might not make sense for a mill where you want a kind of remote control, but for a small lathe it would be convinient...

i playing around with node-graph editor:

 
 

Es gibt kein 7i84S, da ist 7i85S oder 7i85.
Es gibt 7i84 mit 32 eingange und 16 ausgange, aler digital aber kan 4 analog eingange und 2 MPG encoder auch.
7i85 ist 4 normaler hoch geschwindigkeit encoder und 4 SSerial, die mit S kan noch 4 step/dir, denke ich, bin nicht sicher was ist was von diese zwei.
EDIT:
Shau mal an die 7i95T, 6 step/dir und 6 normaler encoder, dan noch ein 7i83 for die analog ausgange.

jhandel wrote:

... 
Long story short, I am turning off everything PID related since I am using CSP and DC as long as my jitter setting is the same on all the motors they will all end up at the same commanded place at the same commanded time even if LinuxCNC is 2ms behind. 
 

Yes I think this extra delay only has an effect when using feedback control like a linuxcnc PID loop.
The command reaches the Ethercat slaves within a servo-loop period time. The drives themselves should
be well tuned, that's the key thing.