0-10v Servo Control with 7i76E

More
4 years 5 months ago #242387 by andypugh
The 7i83 might help. store.mesanet.com/index.php?route=produc...83_88&product_id=122 (that can connect to the smart-serial expansion channel)

But you would need to also consider the position feedback part of the equation so something like the 7i48 might be better,

But the 7i48 is not really compatible with the 7i92. You would normally use:

7i92 + 7i77 (note that the 7i77 could also be connected to the header on the 7i76E)

Or

7i97

Or

7i93 + 7i48 (or 7i33TA)

(All assuming that you want to continue with Etthernet as the link, If not then the 5i24 PCI card + 7i48 is an option.)

There are two styles of Mesa cards, 50-pin (HD) and 25-pin (DB)

They both offer advantages and disadvantages. (50 pin have 24 IO pins per header + GND and DB25 have 17 + GND)

You need to decide which way to go fairly early in the process as the card selections are different but overlapping. (there is no Resolver interface for DB25, for example)

Both types support additional Smart-Serial cards connected via CAT5 cables.
The following user(s) said Thank You: besriworld

Please Log in or Create an account to join the conversation.

More
4 years 5 months ago #242388 by PCW
Replied by PCW on topic 0-10v Servo Control with 7i76E
Yes:

7i93_svst6_6_7i48d.bit
The following user(s) said Thank You: besriworld

Please Log in or Create an account to join the conversation.

More
4 years 5 months ago #242473 by besriworld
Thanks for the quick response.
I have a question again. Before I place an order. I'm looking at a board. 7i98 - There are 51 inputs/Outputs
Are there any examples of how to make a custom bit file. For example, connector P1 should have 3 analog outputs (+ 10 / -10) and 3 inputs for encoder + index. and one out for RS422 (for controll panel)
Connector P2 and P3 configured as LPT
Can it be done by an ordinary person. :)

If it can be done, I will buy two sets and these boards are available in the EU

Please Log in or Create an account to join the conversation.

More
4 years 5 months ago #242479 by andypugh
Yes, you can make your own bitfile. It's generally easiest to start with something close and modify it.

wiki.linuxcnc.org/cgi-bin/wiki.pl?Editing_MESA_Bitfiles

It's worth looking through the existing bitfiles and vhdl for other 51 pin cards (vhdl files like PIN_***_51) in the source:

www.mesanet.com/software/parallel/7i98.zip

Look in configs/hosmot2/ and configs/hostmot2/source/hostmot2.zip (needs to be expanded)
The following user(s) said Thank You: besriworld

Please Log in or Create an account to join the conversation.

More
4 years 5 months ago #242646 by besriworld
Thanks!
It seems half the job is to find the right files. :)
I ordered the cards. I hope I can handle this job.

Please Log in or Create an account to join the conversation.

More
4 years 5 months ago #243024 by besriworld
A little update. The cards will arrive next week. 2 pieces 7i98 and 2 pieces 7i73. I installed ISE14.7 and successfully compiled the firmware. It remains to make a bit file for my custom pcb board.
Each 26 pin connector has 17 I/O but must be in this combination /12 Input and 5 output / or / 12 output and 5 input/ or /17 input / or / 17output /?
Or each pin has a choice of direction ?

Please Log in or Create an account to join the conversation.

Time to create page: 0.330 seconds
Powered by Kunena Forum