Channel tracking

[prasimix]

We have to add channel tracking now when channel coupling infrastructure is added. For SCPI control we have to implement OUTPut:TRACk[:STATe]. For local control we can follow the layout for channel coupling and use different info text like "[Warning sign] Channels tracking active"

[prasimix]

• Disable VOLT:PROG while channels are in tracking mode.
• Simulator's SCPI command shouldn't be affected with tracking mode (e.g. SIMU:LOAD, SIMU:LOAD:STAT, etc.)

[prasimix]

It's possible to enter coupling mode using SCPI commands while tracking mode is active. Use 313,"Cannot execute in tracking mode" error to indicate that. We also need that error for VOLT:PROG while channels are in tracking mode. Also when coupling mode is activated page is not "refreshed" correctly:

[prasimix]

Fixed