Pb to write variables with fuipc

[Guest Eric]

I don't understand well which variables are in writing mode and which are in read only state in the documentation of fuipc.

I wish replay data of real flights in FS2002. The latitude, longitude, heading, altitude, roll and pitch are OK but not many other variables.

For example, write the IAS (address 0x02BC) does not have any effect on the gauge which remains to zero.

Is it possible to program all the variables with fuipc or the majority are read only ?

In other words, is it possible to replay a real flight (with many parameters recorded in the crash recorder) in FS2002?

Thank you in advance for your assistance.

Eric

eric.sylvestre@prestalog.com

[jd]

ask yourself, is this a variable/value that is influenced by flight simulator or the pilot/user

if the pilot/user can adjust the value (comm frequencies, auto pilot heading hold value, brakes, lights, etc), then you can write through fsuipc.

this doesn't always hold true, but in general....

[Pete Dowson]

I don't understand well which variables are in writing mode and which are in read only state in the documentation of fuipc.

Most are both, but FS won't necessarily respond to them all being written. Things used to be a lot clearer in FS98, but times change. Use FSInterrogate and experiment, that's the way to find out.

I wish replay data of real flights in FS2002. The latitude, longitude, heading, altitude, roll and pitch are OK but not many other variables.

Actually heading roll and pitch are normally only settable in paude or slew mode. Certail Lat/Lon/Alt are always settable. Engine/Sim derived values are calculated and overwritten constantly by the simulation engine, so don't expect to be able to change stuff like RPM, N1, N2 -- except maybe in slew mode where it means nothing.

For example, write the IAS (address 0x02BC) does not have any effect on the gauge which remains to zero.

IAS is a derived value. If the aircraft is at rest it has to be accelerated to achieve a speed.

Is it possible to program all the variables with fuipc or the majority are read only ? In other words, is it possible to replay a real flight (with many parameters recorded in the crash recorder) in FS2002?

In slew mode, or with the simulator actually stopped some other way (such as setting the Sim Rate to 0) you should be able to affect most things, but whether you can do everything is a matter of trial and error. Most of this changed between FS98 and FS2000 when the sim engine was rewritten to be completely dynamic.

Regards,

Pete

[Guest Eric]

Thank you for yours answer.

I think the solution is to build entire customized panel with all the parameters linked to my application.

For example, the airspeed gauge will be disconnected from the airspeed value of FS2002.

congratulations for your work

regards,

Eric