Campbell HC2S3 Instrukcja Obsługi Pobierz pdf (Strona 36)

Appendix C. HC2S3 Digital Communications

Command Format:

{ ID Adr RDD Chksum or } CR

Answer format:

{

ID Adr RDD Chksum or } CR

The data are returned according to the following structure:

Example Type Description

1..3 Byte Probe type (1= digital probe, 2=analog probe,

3=pressure probe)

1234.56 Float Relative humidity or analog value

%RH String Humidity or analog value engineering unit

0..1 Bool Humidity or analog value alarm (out-of-limits)

+ Char Humidity or analog value trend (+,-,= or “ “)

1234.56 Float Temperature value

°C String Temperature engineering unit

0..1 Bool Temperature alarm (out-of-limits)

= Char Temperature trend (+,-,= or “ “)

Dp String Calculated parameter type (nc: no calculation, Dp:

dew point, Fp: frost point)

1234.56 Float Calculated numerical value

°C String Calculated parameter engineering unit

0..1 Bool Calculated parameter alarm (out-of-limits)

+ Char Calculated parameter trend (+,-,= or “ “)

1..255 Byte Device type (HygroClip, Logger, HF, HM, …)

V1.0 String Firmware version

12345678 String Device serial number

Name String Device name

000…255 Byte Alarm Byte: (Bit0=out-of-limits value, Bit5= sensor

quality, Bit6 = humidity simulator, Bit7= temperature

simulator)

Example data returned from the RDD command:

{F00RDD} CR

{F00rdd 001; 4.45;%RH;000;=; 20.07;°C;000;=;nc;---.-;°C;000; ;001;V1.7-

1;0060568338;HC2-S3 ;000;4

C-2

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 42

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Campbell HC2S3 Instrukcja Obsługi Strona 36