Ran into an interesting issue with the GRID today - Launch Limiter knows it is activated, but is not applying. Step 5 and burnout are not in the picture. DAQ shows that the limiter activated and set to 4000 RPM.

The only thing I can think of is that we switched from a legacy ignition (using the chip emulator cable) to a 7720 networked module.

Does the "Legacy/Network" switch in general settings change RPM control from chip emulator to onboard? Are there other functions it changes? Or do we need to look at something completely different?

https://photos.app.goo.gl/VCtN7ys6iuNVgmSJ8

If you are using the 7720 with 7730 you need to select the “Network Ignition” in Ignition Type. If you’re using an analog ignition ( 6al, 7al) with 7730, you need to attach the Legacy cable to the analog rpm port and select the Legacy (6al, 7al) mode.

quote:

Originally posted by markemark:
If you are using the 7720 with 7730 you need to select the “Network Ignition” in Ignition Type. If you’re using an analog ignition ( 6al, 7al) with 7730, you need to attach the Legacy cable to the analog rpm port and select the Legacy (6al, 7al) mode.

Yes, in this screenshot it's a 7720 with the setting set to legacy ignition - I completely forgot to change the setting after switched things over. We are curious what all this box affects - there is no documentation explaining it.

I've since changed mode to network ignition but have other issues until we can try it again.