I'm running both an ASI1600MM-C (imaging) and ASI120MM (guiding) on Windows 10 with SIPS and PHD2. In SIPS I'm using the ASCOM driver but in PHD2 I use the native ZWO driver.
It's quite warm where I am at this time of year so cooling is important.
But I'm finding a problem whenever I change driver properties for the ASI1600. Say I run a sequence at Gain 300 and I want to run another sequence at Gain 139. When I go to the properties the default device is always changed back to ASI120 and by the time I finish changing the gain (a few seconds) I find the temperature has gone up a long way - 10 or 15 degrees sometimes. It then takes a long time to cool down again and I'm also worried about the thermal stress.
I think what is happening is that the camera is being disconnected from the driver each time. I find if the ASI120 is fully disconnected I don't get this problem. There is only once choice of camera and the cooling stays on while I adjust properties.c
I tried to see what happens if I connect through the ASCOM Connection Tester and PHD2 ASCOM driver and the same thing happens. That is, ASI120 is the default camera.
It would be nice if the driver could remember which camera it was connected to and not turn off the cooling
