EVENT / TIMER and "DDE"

Hello,

bevor: my english is not very good

i have 1 Laser (1500 w) and emc2 retrofit ... its runnig now "ok" ...

the laserpower on the edges and so ... ist sometimes to MUCH ...

to control the power i have a 0 ... 5 VOLT analog signal and i will
make this allways in relation to the feed/velocity but not 1 : 1

to control this i have no idea

with G-code i can send M123 P50 or antything but this is not perfekt
...
my "home" was bevor emc2 >>> win / visualstudio and visualbasic to make good programms
now i was a ~freshman~
=====================================
can i make a "Timer-Event" at EMC2 ?
or
can i give signals at all 20 ms out to a C or python ?
OR
can i make a "DDE" / tcp / or any from python to EMC2 and look to the aktual FEED

very thanks for a little input

thank you for this code - now i am at home testing tomorro or monday

i not sure - the POWER goes 1:1 form speed to "spindle speed" (the laser is for me begining)

i think:

Sample: Stainless 2 mm tickness ...
i give this to g-code:

F = 3000 mm / min
Prim.Power = 750 WATT = now 100%

and send to begin from cuting an Mnnn to start the "Spindle-speed"

then the power goes upAnddown / speed but not under ~2000

i think with spindle-speed.MIN = 2000 # ( ~> 375 W / 50% : F3000 = 100% or 2000 = 0% and 3000 = 100% from RANGE 375W)
the 1:1 was ok
=====================
can i make a "Timer-Event" at EMC2Yes, but we would need more details about what you want, there are so many ways to do it.
=====================
the timer event was my think to send a output to python and i give inside Py the power to laser

now my wife is on POWER and i must out

thanks for help

hello and thanks

ok its 1:1 ...

i "found" this on "wiki.linuxcnc.org/emcinfo.pl?Using_HAL_In_Python"
===========
DESCRIPTION
This module allows the creation of userspace HAL components in Python.
This includes pins and parameters of the various HAL types.

Typical usage:

import hal, time

h = hal.component("component-name")
# create pins and parameters with calls to h.newpin and h.newparam
h.newpin("in", hal.HAL_FLOAT, hal.HAL_IN)
h.newpin("out", hal.HAL_FLOAT, hal.HAL_OUT)
h.ready() # mark the component as 'ready'

try:
while 1:
# act on changed input pins; update values on output pins
time.sleep(1)
h = h
except KeyboardInterrupt: pass

When the component is requested to exit with 'halcmd unload', a
KeyboardInterrupt exception will be raised.

DATA
HAL_BIT = 1
HAL_FLOAT = 2
HAL_IN = 16
HAL_IO = 48
HAL_OUT = 32
HAL_RO = 64
HAL_RW = 192
HAL_S32 = 3
HAL_U32 = 4
==============
i have see the time.sleep(1) (one Sec or MS ?) and this was verry good
when i can make this:

the sample goes to M123

on cut-begin: Nxxx M123 2000 # Watt 100% for powerfeed ON
then i can control the power in the event from the python-file ? every 1 ms
on cut-end Nxxx M124

bevor i can't sleep tonight

h.newpin("in", hal.HAL_FLOAT, hal.HAL_IN) # makes a newpin ?

can i make a question to M5i20 pins from the event from python ?
*smile*

hello and thanks

ok its 1:1 ...

i "found" this on "wiki.linuxcnc.org/emcinfo.pl?Using_HAL_In_Python"
===========
DESCRIPTION
This module allows the creation of userspace HAL components in Python.
This includes pins and parameters of the various HAL types.

Typical usage:

import hal, time

h = hal.component("component-name")
# create pins and parameters with calls to h.newpin and h.newparam
h.newpin("in", hal.HAL_FLOAT, hal.HAL_IN)
h.newpin("out", hal.HAL_FLOAT, hal.HAL_OUT)
h.ready() # mark the component as 'ready'

try:
while 1:
# act on changed input pins; update values on output pins
time.sleep(1)
h = h
except KeyboardInterrupt: pass

When the component is requested to exit with 'halcmd unload', a
KeyboardInterrupt exception will be raised.

DATA
HAL_BIT = 1
HAL_FLOAT = 2
HAL_IN = 16
HAL_IO = 48
HAL_OUT = 32
HAL_RO = 64
HAL_RW = 192
HAL_S32 = 3
HAL_U32 = 4
==============
i have see the time.sleep(1) (one Sec or MS ?) and this was verry good
when i can make this:

the sample goes to M123

on cut-begin: Nxxx M123 2000 # Watt 100% for powerfeed ON
then i can control the power in the event from the python-file ? every 1 ms
on cut-end Nxxx M124

bevor i can't sleep tonight

h.newpin("in", hal.HAL_FLOAT, hal.HAL_IN) # makes a newpin ?

can i make a question to M5i20 pins from the event from python ?
*smile*

Thanks - i have insert your code ... and a "hal_meter1" from gladevcp to see the "power"
nearly its verry good

but i don't understand the correct way to give 0 to 5 V out correctly




when 1500 W = 100% Power for the 100% Speed (gives the F param in the g-code)
and the V = 0 to 5 V
i think: Scale = 5 / 1500
...
i have make ~50 or more examples *g* combined sourceA / b c..d... etc. now i am deffekt ...
====
importend for me is this:

LaserPower to SET -> ON and OFF in Gcode

when i can set a min and maxRange for the speed-laser-powercontrol then i don't set a alternativ for allways the Snnn Power
otherwise i will make

GCodeA: with controled
N10 M123 1 # >>> set controlled-speed ON
N12 F100
N14 M124 S100 #LASER ON to 100W
N16 S750 # maybe: = 750 WATT or 50% or 2.5 V
N18 G1 X10 Y10 ..... # work controlled with speed
....
N200 M125 # LASER OFF its then Volt = 0 or the pin to enable = false ? good-think

GCodeB: with not controled
N10 M123 0 # >>> set controlled-speed OFF
N12 F100
N14 M124 S100 #LASER ON to 100W
N16 S750 # maybe: = 750 WATT or 50% or 2.5 V
N18 G1 X10 Y10 ..... # work allways with 750 WATT
....
N200 M125 # LASER OFF its then Volt = 0 or the pin to enable = false ? good-think

=========
i am not sure why the hm2_5i20.0.pwmgen.02.value = 3 but the Volts is not 3 *g*

verry thanks for a help next

ok sorry

its ok

with M3 i set it ON and give the 100%
M3 S1500 gives 100% = 1500 ?
now when the speed goes to 50% the output = 50% = 750 = 2.5 V ?
...
M5 set Spindel OFF - verry good ...its ok

i make this now on the machine ... and
i 'l be come back