7i97t with 7i85?

Hello,

The only problem left with my retrofit is the lack of a second smart serial port on my 7i97t. I need one to connect a 7i84 that does al the I/O and the other one would be for a 7i73 in my control cabinet.
I tried getting the convertor board by talla83 to work and I'm done because it won't run. I`m now willing to buy my way out of the problem and just install a 7i85 to the expansion port. I have already flashed the bitfile for that as per your instructions . So I just need a 7i85 and a proper expansion cable.

Then I can connect the 7i73 with a butchered ethernet cable and also have connections for more encoders (spindle maybe and 4th axis) so I can justify saving my nerves by spending that extra money.

i would buy this combination:
eusurplus.com/index.php?route=product/pr...t_id=105&search=7i85
www.welectron.com/Mesa-Electronics-DB25M...O-Erweiterungskarten
 
Would that work with my 7i97t using my current bitfile 7i97t_7i85d.bin?
 

Yes, if the cable is HDR26F on one end and DB25M on the other
(the link does not work)

Yes that's the cable thanks. I will report once I get it all connected.

Ok so my  parts arrived and I connected everything.
 p
However, the setup is not working currently. When I have the jumper on the 7i85 set to get 5v from the db25 cable it does not get power. Powering it from my 5v supply with the jumper correctly positioned it turns on and gives power through the cat5 cable to the 7i73 but no communication takes place.
This leads me to believe my bitfile on the 7i97t is wrong or not working properly.
Once again the smart serial port on the 7i97 itself works correctly and plugging the 7i73 into that shows it in the terminal using mesaflash so the problem is likely the pinout on the expansion port on the 7i97t?

Can someone help me out?

To power the 7I85 from the 7I97T, you must also change
the 7I97T cable power jumper (W22 must be up)

Did you check if the sserial port is enabled in your hal file?
(you have the cable connected to what is sserial port 2
on the 7I85) so you need at least sserial_port_0=ABCxxxxx
where C is the mode for sserial channel  2
 

Thank you so much Peter you've done it again. Changed the line to sserial_port_0=000xxxxx and it works flawlessly. I also changed the number of encoders to 10 so i can use them on the 7i85. Now I just have a bunch of hal and classic ladder configuration ahead of me to wrap this retrofit up.