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Parallel port stepper control and etherCAT I/O
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4 years 17 hours ago #255481
by O.R
Replied by O.R on topic Parallel port stepper control and etherCAT I/O
I changed apptimeperiod and Servo Period to 1048000 and no error messages. I made simply HAL configuration led blink test with EL1004 and it seems to work.
Is there some kind of pulse counter in LinuxCNC for encoder testing, i thought i will next test the EL1124 if it could handle my linear encoder. I thought i would compare pulse counts in different axis speeds and see if there is any pulse count difference in same movement distance.
Is there some kind of pulse counter in LinuxCNC for encoder testing, i thought i will next test the EL1124 if it could handle my linear encoder. I thought i would compare pulse counts in different axis speeds and see if there is any pulse count difference in same movement distance.
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4 years 13 hours ago #255522
by CORBETT
Replied by CORBETT on topic Parallel port stepper control and etherCAT I/O
db1981
Dominik, you're the Man... Always glad to see you here
I have more questions for you in the future, just too busy tonight.
O.R
Dominik is 100% correct about the hardware encoding and using the EL5xxx terminals, but you can add the "encoder" component to LCNC in HAL for "software" encoding.
You are keeping your existing stepper setup with the base-thread. Simply add the "Encoder" component to LCNC and tie the EL1124 pins to the "encoder" pins in LCNC. Like I said before this is way slower than using the EL5151, as this way is "software" encoding rather than "hardware" encoding like Dominik was explaining.
I am busy working but will check back at some point. Dominik or Tom will be able to explain the encoder component that you need to add in your HAL file if I am not back in time.
*EDIT*
I forgot to add that Dan would have had to do it this way, there is no other way than using the "encoder" component while using a EL1124 that I could think of.
ROD WEBSTER
Rod if you see this, since last night I have built 8 complete systems without fail. Super quick to do even compared to EC-Debianize way. I still get tripped up not doing a "sudo update-ethercat-config".
Dominik, you're the Man... Always glad to see you here
O.R
Dominik is 100% correct about the hardware encoding and using the EL5xxx terminals, but you can add the "encoder" component to LCNC in HAL for "software" encoding.
You are keeping your existing stepper setup with the base-thread. Simply add the "Encoder" component to LCNC and tie the EL1124 pins to the "encoder" pins in LCNC. Like I said before this is way slower than using the EL5151, as this way is "software" encoding rather than "hardware" encoding like Dominik was explaining.
I am busy working but will check back at some point. Dominik or Tom will be able to explain the encoder component that you need to add in your HAL file if I am not back in time.
*EDIT*
I forgot to add that Dan would have had to do it this way, there is no other way than using the "encoder" component while using a EL1124 that I could think of.
ROD WEBSTER
Rod if you see this, since last night I have built 8 complete systems without fail. Super quick to do even compared to EC-Debianize way. I still get tripped up not doing a "sudo update-ethercat-config".
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