Mesa 6I25 and 7I78 setup for ELMO SSA-6/100OPT2 servo drives

Hello everyone,I am currently working on bringing an old CNC milling machine back to life. The machine uses analog axis drives with a +/-10V command signal.The original controller (NUM 1040) is no longer working. However, the axis drives are still functional. They are ELMO SSA-6/100OPT2 drives.My plan is to replace the controller with LinuxCNC. I already have a Mesa 6I25 and a 7I78 card, but these only provide STEP/DIR outputs, which are not directly compatible with my analog +/-10V drives.I am therefore looking for a solution to convert STEP/DIR signals into an analog +/-10V command. I have seen that it may be possible to convert STEP/DIR to PWM and then from PWM to +/-10V, but I am concerned that this could introduce latency or reduce control quality.Another option would be to use a Mesa 7I97 or 7I77, which natively support analog +/-10V outputs, but unfortunately these cards are currently unavailable.If anyone has experience with a similar setup or knows a reliable solution, I would greatly appreciate your advice.Best regards.

You can certainly get firmware that replaces the step/dir outputs to PWM/DIR,
but then you still need multiple channels of PWM/DIR --> +-10V analog conversion
and then you are still missing the multiple encoder channels needed.
So, a 7I78 is really the wrong starting point here. Mesa should have 7I97Ts
in 1-2 weeks so that is the simplest solution I see. Production 7I77Us are still
about 6-8 week away.