Weiler DZ26 Millturn Conversion

The 7I77/7I77D have no flyback diodes but they do have Zener --> gate
slew rate limiters. These dissipate the inductive energy in the output MOSFETS
This is only good up to 60 mA or so. If the solenoids have more that 60 mA  current draw,
they must have flyback diodes (and they must draw no more than 350 mA)

Thank you, i checked on the machine and you are right, they have integrated flyback diodes. I will check wether they draw more than 350mA (i can't imagine they do)

Another question:
Since i have the full documentation fory old siemens 810t control i can check all sorts of servo calibration values from the original machine data. Certain 8-bit codes can be decoded using the docs. You i try using that method or would you do it from scratch as it it is a new machine?

I better don't say it out loud, but it all looks pretty straightforward to me

The I/O board is almost the same as the 7i77, theoretically i can connect 24V power, servo control and all IOs with original wiring and get straight into configuration mode.

Reality check incoming....

Finally came around to start implementing everything. Freshly installed linuxcnc doesn´t recognize the mesa card though. I've set W5 down to load basic configuration in case the eeprom firmware has some issues. I can only see the Texas Instruments PCIE bridge when i list all connected PCI hardware in terminal

Does the 6I25 finish configuration loading?  (no red LEDs except briefly at power up)

Is the 6I25 jumpered for 33 MHz PCI clock?

 

Hi,
i have answered your email. Checked both things listed above and had no success flashing new firmware

Hi, i made it run (badly) with the 7i77 alone but decided to add a 7i84U for some further inputs to revive all features the machine originally had.
I can´t seem to make the TB6 sserial connection work with any bitfile included in the 5i25 repository. Its 6i25 P3 to P1 7i77 and TB6 to 7i84. Is there something available or something that might just work?
Best,
Lukas

The standard 5i25_7i77x2.bit supports sserial on TB6

Do you have the added channel enabled in the hal file?

when running said bitfile and using

loadrt hm2_pci config="sserial_port_0=7i77,2500000 sserial_port_1=7i84,2500000"

it doesn´t show a second sserial device when:

sudo mesaflash --device 5i25 --readhmid | grep -i sserial

Maybe i am using the wrong nomenclature or baudrate?

Should be something like:

sserial_port_0=000xxxxx

or

sserial_port_0=002xxxxx

Assuming you want the 7I84 to run in mode 2.

There is no sserial_port_1 in 7i77x2 configurations
(there is only sserial_port_0 with 6 channels, 3 for the first 7I77 and 3 for the second)

Somehow i just lust my long winded reply to your suggestion...
short form: I would be happy to find some form of documentation to get that sserial port config done. .9serial and hostmot2 documentation don´t help me at all unforuntately

"sserial_port_0=0000000F" should open up channel 0-2 for 7i77 in mode 0 and 3 for 7i84U in Mode 0

no sserial device answers to

"show param hm2_5i25.0.sserial.port-0.device-count"

i am pretty much out of my depth setting up that smart serial connection