Campbell CR1000 User Manual

Appendix A. CRBasic Programming Instructions
SDMCVO4
Control the SDM-CVO4 four-channel, current/voltage output device.
Syntax
SDMCVO4(CVO4Source, CVO4Reps, SDMAddress, CVO4Mode)
SDMGeneric
Sends commands to an SDM device that is otherwise unsupported in the operating
system. See the appendix Endianness
(p. 643).
Syntax
SDMGeneric(Dest, SDMAddress, CmdByte, NumvaluesOut, Source,
NumValuesIn, BytesPerValue, BigEndian, DelayByte)
SDMINT8
Controls and reads an SDM-INT8 interval timer.
Syntax
SDMINT8(Dest, Address, Config8_5, Config4_1, Funct8_5,
Funct4_1, OutputOpt, CaptureTrig, Mult, Offset)
SDMIO16
Sets up and measures an SDM-IO16 I/O expansion module.
Syntax
SDMIO16(Dest, Status, Address, Command, Mode Ports 16 to 13,
Mode Ports 12 to 9, Mode Ports 8 to 5, Mode Ports 4 to 1,
Mult, Offset)
SDMSIO4
Controls, transmits, and receives data from an SDM-SIO4 I/O expansion module.
Syntax
SDMSIO4(Dest, Reps, SDMAddress, Mode, Command, Param1,
Param2, ValuesPerRep, Multiplier, Offset)
SDMSpeed
Changes the rate the CR1000 uses to clock SDM device data.
Syntax
SDMSpeed(BitPeriod)
SDMSW8A
Controls and reads an SDM-SW8A switch-closure expansion module.
Syntax
SDMSW8A(Dest, Reps, SDMAddress, FunctOp, SW8AStartChan, Mult,
Offset)
SDMTrigger
Synchronize when SDM measurements on all SDM devices are made.
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Campbell CR1000 Specifications

General

Power Requirements	9.6 to 16 VDC
Data Logger Operating System	CRBasic
Memory	4 MB
Analog Inputs	16 single-ended or 8 differential
Analog Input Resolution	13 bits
Analog Input Range	+/-2.5V
Digital I/O	8
Pulse Counters	2
Communication Ports	RS-232
Operating Temperature	-25°C to +50°C
Pulse Channels	4