Specifications

Section 7. Measurement Instructions
PortGet - Reads the status of one of the eight control ports....................... 7-19
PortSet – Sets Digital Ports........................................................................ 7-20
PulseCount – Pulse/Frequency Measurement............................................ 7-20
PulseCountReset - Resets Pulse Counters and Running Averages
Used in Pulse Count Instruction ........................................................ 7-23
PulsePort .................................................................................................... 7-23
ReadIO – Reads State of Digital I/O Ports................................................. 7-23
SDI12Record - Used to retrieve the results from an SDI-12 sensor .......... 7-24
Vibrating Wire ........................................................................................... 7-25
WriteIO – Sets Digital Outputs.................................................................. 7-26
7.8 Specific Sensors
CS110......................................................................................................... 7-27
CS616......................................................................................................... 7-27
HydraProbe ................................................................................................ 7-28
SlowAntenna.............................................................................................. 7-29
Therm107, Therm108, Therm109.............................................................. 7-29
7.9 Peripheral Devices
AM25T - Controls the AM25T multiplexer............................................... 7-30
CS7500 - Communicates with the CS7500 open path CO
2
sensor ............ 7-31
CSAT3 - Communicates with the CSAT3 sonic anemometer ................... 7-32
SDMAO4 – Sets the voltage to an SDM-AO4 output device.................... 7-33
SDMCAN – Measures and controls the SDM-CAN interface .................. 7-34
SDMCD16AC – Controls an SDM-CD16AC, SDMCD16, or
SDM-CD16D 16 channel relay/control port device........................... 7-40
SDMINT8 – Allows the use of the SDM-INT8, 8 channel interval timer,
with the CR3000 ................................................................................ 7-40
SDMIO16................................................................................................... 7-43
SDMSIO4 – Controls and transmits/retrieves data from a CSI SDM-SIO4
interface ............................................................................................. 7-47
SDMSpeed - Changes the rate that the CR3000 uses to clock the SDM
data..................................................................................................... 7-48
SDMSW8A – Controls the SDM-SW8A 8-channel switch closure
module ............................................................................................... 7-48
SDMTrigger - Allows the CR3000 to synchronize when measurements
are made............................................................................................. 7-49
SDMX50.................................................................................................... 7-50
TDR100 ..................................................................................................... 7-50
7-2