Campbell-scientific EC155 CO2 and H2O Closed-Path Gas Analyzer and EC1 Uživatelský manuál stáhnout pdf (Strana 47)

EC155 CO

and H

O Closed-Path Gas Analyzer

10. Datalogger Programming with CRBasic

CRBasic supports two instructions to communicate with the EC100 via SDM.

The first is the EC100() instruction, which reads measurement data from the

EC100. The second is the EC100Configure() instruction, which receives and

sends configuration settings.

10.1 EC100() Instruction

The EC100() instruction is used to retrieve data from the EC155 via SDM.

The instruction syntax is:

EC100(Dest,SDMAddress,EC100Cmd)

Dest is the input variable name in which to store the data from the EC155. The

length of the input variable array will depend on the selected value for the

EC100CMd. A value of -99999 will be loaded into Dest(1) if a signature error

on SDM data occurs.

Command

Input Variable Length

SDMAddress defines the address of the EC155 with which to communicate.

Valid SDM addresses are 0 through 14. Address 15 is reserved for the

SDMTrigger() instruction.

EC100Cmd is a parameter that requests the data to be retrieved from the

analyzer. The results for the command will be returned in the array specified

by the Dest parameter. A numeric code is entered to request the data, as shown

in TABLE 10-1.

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 69 70

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Campbell-scientific EC155 CO2 and H2O Closed-Path Gas Analyzer and EC1 Uživatelský manuál Strana 47