Is this a bug?

I'm trying to start up a Hurco MD3 4 axis mill conversion. It's using EMC2 2.5 pre -release with Mesa 5i20, 7i48, and 2 7i37 boards and has been configured using PnCConf. Yesterday, after configuring it, EMC2 opened and all seemed to be OK to begin start up. E-stop and limit switches all worked and all encoders registered the proper direction and distance when the axes were moved manually.

Day ended, did an update on computer, came in today to power up servos. EMC2 will not start. I've gone back through PnCConf and removed all the extras and looked in all the files to see if I could manually correct for the error I get. No luck. I've attached the "EMC2 Errors" message and would appreciate it if someone could set me straight. Thanks.

Hurco_MD3.hal:209: Signal '%s-vel-fb' can not add OUT pin 'hm2_5i20.0.encoder.01.velocity', it already has OUT pin 'hm2_5i20.0.encoder.00.velocity'
2549

Looks like a real error in the HAL file can you post your HAL file?

Hurco_MD3.hal:209: Signal '%s-vel-fb' can not add OUT pin 'hm2_5i20.0.encoder.01.velocity', it already has OUT pin 'hm2_5i20.0.encoder.00.velocity'

delete line 209 or manualy edit etc ,
it's trying to add a pin to one already existing
i believe this is due to changes in pncconf and probably a bug for Chris to rectifiy , if indeed he has not already done so
also it looks as your firmware bit file may require an update

Here's the .hal file. Is there a way to number the lines? How do I update the firmware?

net y-pos-fb <= hm2_5i20.0.encoder.01.position

delete this line below
net %s-vel-fb <= hm2_5i20.0.encoder.01.velocity

net y-pos-fb => axis.1.motor-pos-fb

if you open the hal file in Gedit the cursor line is shown in the bottom right corner
or in gedit under Edit , preferences tab , tick the box 'Display Line Numbers'

are you using velocity encoder feedback if so
replace the %s-vel-fb above with y-vel-fb

also the same with x and z axis
this takes the same pattern so change to x-vel-fb and z-vel-fb as approprate

Looks like a macro substitution did not take place (the %s) so
all encoder velocities get assigned to the same variable
This requires more serious editing or Chriss's help

Beware that these changes will change your tuning (lower the D factor)
until the firmware is updated

Peter and cncbasher,

Thanks for the responses. I had configured a much simpler 3 axis version and when I deleted the "net %s-vel-fb <=" line from each axis, EMC2 opened.

Note that simply deleting these lines is not really correct, you now have no D
term in your PID loop
What really should happen is that the %s should be replaced with x, y, or z (which one is pretty clear from 00 = x , 01 = y, 02 =z or just context)

Thanks Peter! I put the line back in and edited it as you suggested, and it still works. It's usually what you don't know that you don't know that gets you.

Fgauder

Sorry for the bug getting you. I have pushed the fix.

You asked about line numbers when displaying HAL files.
If you are using Ubuntu you are probably viewing the HAL file with gedit...
Look under heading 'edit' then 'preferences'.
You should see a checkbox.

Cheers