Mesa & Modbus

Hi everyone. I've been controlling my Huanyang VFD via modbus for a while, but I recently changed from a parallel port installation (C11 breakout board) to a Mesa 5i25+7i76. I've copied over the necessary bits from the old HAL files and I can hit the spindle forward/reverse buttons and get the VFD to click, but when I use the + to speed up or - to speed down I get nothing.

My guess is that the HAL pins I'm connected to from my old paraport config are pointing to the wrong pins for a Mesa config. Can someone tell me what I should be looking for? What pins do the + and - point to? I have the config files zipped up and available at the link below if taking a look would help. I've been messing with this for hours and can't seem to get it working.
www.dropbox.com/s/qbsv08p6lh051dk/russtuffMesa.zip?dl=0

Thanks in advance to anyone who can help.

Just guessing is this line in custom_postgui.hal an issue

# SET SPINDLE AT SPEED INDICATOR TO TRUE IF WE CHOSE NO FEEDBACK
# DON'T USE THIS LINE IF USING MODBUS FOR RPM COMMANDS
sets spindle-at-speed true

Thank you for digging in. I've tried disabling that line during testing and it didn't make a difference. Funny, I wonder why I bothered to note I shouldn't use it when controlling via modus.

Does the spindle respond to MIDI commands?

It does not.

russtuff wrote:

I've tried disabling that line during testing and it didn't make a difference.

I think if you disable that line, you would need to uncomment this line
but I'm not sure its formatted correctly. I would have done it this way
My concern is that if the spindle is always at speed as per "that line", why would it ever attempt to change the speed?

I'll test this right away and update. Thank you.

Update: I've tried both suggestions but the VFD still isn't increasing Hz when asked. Rodw I replaced my line with your two and it does make better sense to me visually.

It's been a while since I created my original modbus config but I believe the reason I needed to enable spindle at speed is because I'm not currently reading spindle RPM. Having spindle at speed enabled allows a program to continue after an RPM when called, else the program pauses indefinitely awaiting the spindle to reach the requested speed. With my new Mesa Hardware I will have the ability to read a quadrature spindle signal and at that time I should no longer need spindle it speed.

I'm not 100% up with Spindles because my machine is a plasma cutter but I think you will always need a spindle at speed because motion will not start without it.
linuxcnc.org/docs/2.7/html/config/core-components.html

I have a fully functioning config for a Huangyang VFD working with a Mesa 7176e via Modbus - I'll share it tomorrow when I'm back in the evil laboratory.

Right on. Thanks!