CR1000 Manual - Campbell Scientific

Appendix A. CRBasic Programming Instructions
SDMIO16
Sets up and measures an SDM‐IO16 control‐port expansion device.
Syntax
SDMIO16(Dest, Status, Address, Command, Mode Ports 16-13,
Mode Ports 12-9, Mode Ports 8-5, Mode Ports 4-1, Mult,
Offset)
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 CR1000 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. 563).
Syntax
TimedControl(Size, SyncInterval, IntervalUnits, DefaultValue,
CurrentIndex, Source, ClockOption
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