Hum,
I've just started to program my VRi MCP using the SDK and I have issues with I don't have with 757/767 products.

First function with battery switch and writing to O07_004_CAP and O07_004_SW2 LVars has no effect at all. Ok I'll use standard FS command to switch it on and off.

Then I wanted to start the APU. Writing to O17_001_SW3 LVar makes the switch move correctly (0=Off, 1=On, 2=Start) but nothing really happens. APU doesn't start. If I use the mouse to start it up and then use ipc.writeLvar("L:O17_001_SW3", 0) to switch it off, the switch is moving to off but the APU is still running?

Are you sure the SDK is fully implemented?

Skip.