Ignore Analog Limits Mesa5i25/7i77

Hi,guys
Pleas give me advise what is the proper way to have analog output 0-5V.
I add section in machine.ini:

[LASER]
MAX_OUTPUT=5
ANALOG_MINLIMIT=0
ANALOG-MAXLIMIT=5
ANALOG_SCALE=5
Linuxcnc see scale but ignor limits,why?
Thank You.

Are you sure those are the names PnCConf uses?

Did you modify the hal file to use those ini file settings?

Many if not most ini file settings do nothing by themselves,
they are just constants passed to the hal file for setup use

Unless the hal file has a setp or other statements that use
[LASER]ANALOG_MINLIMIT, [LASER]ANALOG_MAXLIMIT, [LASER]ANALOG_SCALE
as constants, the ini file settings do nothing

Than You for Your reply.
I'm using mesa since 2013 and I know that work perfectly.
"Did you modify the hal file to use those ini file settings?"
Of course :
Machine.ini:
[LASER]
MAX_OUTPUT = 4
#OUTPUT_SCALE=0.5
ANALOG_MAXLIM =4
ANALOG_MINLIM = 0
ANALOG_SCALE = 4
Core.hal :
setp hm2_5i25.0.7i77.0.1.analogout5-minlim [LASER]ANALOG_MINLIM
setp hm2_5i25.0.7i77.0.1.analogout5-maxlim [LASER]ANALOG_MAXLIM
setp hm2_5i25.0.7i77.0.1.analogout5-scalemax [LASER]ANALOG_SCALE
net laser motion.analog-out-00 hm2_5i25.0.7i77.0.1.analogout5
Linuxcnc work and respond for changing ANALOG_SCALE = 4 ,but don't see limit.
Could You show me proper statement for 0-5V.

Regards Grzegorz.

Sorry, missed it the first time

[LASER]
MAX_OUTPUT=5
ANALOG_MINLIMIT=0
ANALOG-MAXLIMIT=5
ANALOG_SCALE=10

is what you want

Thank You It's working greate

On another machine "galvo head" I need +-7V so:
[LASER]
MAX_OUTPUT=7
MIN_OUTPUT=-7
ANALOG_MINLIMIT=-7
ANALOG-MAXLIMIT=7
ANALOG_SCALE=???????
How is it calculated?

Analog scale is always 10 if you want correct scaling for volts (since that's full scale output)

You might want scale to be 6000 (RPM) for a spindle or 200mm/s for a linear axis

Another way of looking at this.
The cards output range is always -10-10v, the ANALOG_SCALE=X sets up what scale of numbers Linuxcnc equatest that voltage range to. Such as +/-6000 RPM, so when the command is 6000RPM the card would output 10v.

So for your +/-7volt
[LASER]
MAX_OUTPUT=7
ANALOG_MINLIMIT=-7
ANALOG-MAXLIMIT=7
ANALOG_SCALE=10

For a spindle VFD with +/-5v with 5v=6000 RPM
MAX_OUTPUT=6000
ANALOG_MINLIMIT=-5
ANALOG-MAXLIMIT=5
ANALOG_SCALE=12000

(I think) I'm sure someone will correct me if I'm wrong.

The limits are also scaled:

For a spindle VFD with +/-5v with 5v=6000 RPM
MAX_OUTPUT=6000
ANALOG_MINLIMIT=-6000
ANALOG-MAXLIMIT=6000
ANALOG_SCALE=12000

This is Greate forum with friendly People!
Thank You PCW.
Thank You Todd.

Sorry for the dellay CNC is my hobby ,and sometimes hard to find time for toys
What is better way to controll laser: ANALOG 0-5V or PWM/PDM.?
I wonder what is faster and more precise?