Campbell Scientific CR1000KD CR800 and CR850 Measurement and Control Systems - Page 470

Appendix A. CRBasic Programming Instructions SDMSIO4 Controls and transmits / receives data from an SDM‐SIO4 Interface. Syntax SDMSIO4(Dest, Reps, SDMAddress, Mode, Command, Param1, Param2, ValuesPerRep, Multiplier, Offset) SDMSpeed Changes the rate the CR800 uses to clock SDM data. Syntax SDMSpeed(BitPeriod) SDMSW8A Controls and reads an SDM‐SW8A. Syntax SDMSW8A(Dest, Reps, SDMAddress, FunctOp, SW8AStartChan, Mult, Offset) SDMTrigger Synchronize when SDM measurements on all SDM devices are made. Syntax SDMTrigger SDMX50 Allows individual multiplexer switches to be activated independently of the TDR100 instruction. Syntax SDMX50(SDMAddress, Channel) TDR100 Directly measures TDR probes connected to the TDR100 or via an SDMX50. Syntax TDR100(Dest, SDMAddress, Option, Mux/ProbeSelect, WaveAvg, Vp, Points, CableLength, WindowLength, ProbeLength, ProbeOffset, Mult, Offset) TimedControl Allows a sequence of fixed values and durations to be controlled by the SDM task sequencer enabling SDM‐CD16x control events to occur at a precise time. See the appendix Relay Drivers (p. 541). Syntax TimedControl(Size, SyncInterval, IntervalUnits, DefaultValue, CurrentIndex, Source, ClockOption A.6 Processing and Math Instructions A.6.1 Mathematical Operators Note Program declaration AngleDegrees() (see Program Declarations (p. 451) ) sets math functions to use degrees instead of radians. 470