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MaHa, why you up so early?
4:40AM here, going to bed right now.
And whatever the reason you are up so early, i hope it's a good one.

HP 800 G2 SFF and HP 800 G3 SFF with Intel network are perfect with Mesa cards. No issues, except replacing a noisy CPU fan

forum.linuxcnc.org/49-basic-configuratio...-lube-time-component
github.com/AlexmagToast/LinuxCNC-LubeDude

How’s it going.  So I recently switched over to GMOCCAPY from the traditional Axis interface.  I have to say it looks much nicer and I like how tool touchoff and setting g54 home positions is much more intuitive.  In Axis I always made the mistake of not selecting the correct joint when doing touchoff and accidentally set my tool length offset as a X or Y offset shift then go crash the machine during a run.  Anyways besides all that, I’m now wanting to go to the next level and start customizing the GMOCCAPY interface.  I want to start out with something simple like a machine running timer alert.  This would be an alert that tells me to oil the ways after 10hrs of runtime.  This way the oiling is perfect and scheduled saving on way oil.  Stuffs not cheap lol What I’m trying to make happen is a function that’s tied to the run button that then activates a timer and stores the time running in a file on the hard drive.  When the total time running = 10hrs reset the time and display a message saying: “The machine has been running for 10hrs now.  It is time to Oil the ways.”  Where should I start on this?  I know there’s a hal.program-is-run and a time.N.start.  Then what do I do?  time.N.start <= hal.program-is-run?  Sorry I’ve never programed python much but have some C#, Java, VB, SQL, C++,and XLM skills.  My collage sucked and never let us program in Python.

Or using "voltage dividers" made from 2 resistors for each input also works fine, but care must be taken to prevent the lower side resistor from disconnecting.
It does induce more current draw from outputs though, but i know for sure in most cases all is OK.

Oh yes, i did disagree with that statement, silently, as he might have experience with "Home" or "Office" types of HP computers and those are frankly cr@p, but "Enterprise" HP computers and workstations are magnificent in every way and some have 700W or 1000W power supplies despite no way of cramming stuff in it to require that kind of power. Same goes for Dell and Lenovo and Fujitsu and older Fujitsu-Siemens, all of those in the "Enterprise" edition work perfectly, no matter how old, and using them 24/7 is a given.
And yes, there are many of us here using HP even on industrial machines, as again, they never fail.

Usually connecting +Z or -Z from encoder to Z input should work fine.
Also, depending on + or - you get active low or active high.
Might have issues with "open collector" type outputs from encoder, can be easily fixed with a resistor between +V encoder power and input/encoder output.