Bronkhorst DeviceNet slave interface Manual do Utilizador descarregar pdf (Página 17)

BRONKHORST®

Page17DeviceNetinterface   9.17.026

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CONTROLLEROBJECTSERVICES

SINGLESTAGE

CONTROLLER

OBJECT

SERVICE

CODE

SERVICENAME SERVICEDESCRIPTION

0x33 0x0E Get_Attribute_Single Returnsthecontentsofthespecifiedattribute

0x33 0x10 Set_Attribute_Single Modifiesanattributevalue

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3.3.8 S‐GasCalibrationObject

ClassCode34HEX

AnS‐GasCalibrationObjectaffectsthebehaviourofanassociatedS‐AnalogSensorobjectinstance.

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GASCALIBRATIONOBJECT’SCLASSATTRIBUTES(Instance=0)

GAS

CALIBRATION

OBJECT

ATTRI‐

BUTE

ATTRIBUTENAME SERVICECODE DATATYPE

FLOW‐

BUS

Comment

0x34 0x02 MaxInstance

 0x0E UINT8

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Thisisthetotalnumberofprocessgasescurrentlycalibratedforthedevice.

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GASCALIBRATIONOBJECT’SINSTANCEATTRIBUTES(Instance=1...8)

GAS

CALIBRATION

OBJECT

ATTRI‐

BUTE

ATTRIBUTENAME

SERVICE

CODE

DATATYPE FLOW‐BUS Comment

0x34 0x01 Numberofattributes 0x0E USINT6

0x34 0x02 AttributeList 0x0E ArrayofUSINT 

0x34 0x03 GasStandardnumber 0x0E UINTseelistfromSEMI

0x34 0x04 ValidSensorinstance 0x0E UINT 1

0x34 0x05 GasSymbol 0x0E SHORTSTRING 1,17;Char[10] fluidname

0x34 0x06 FullScale 0x0E STRUCT Fullscalecapacity(REAL),

capacityunit(UINT)

0x34 0x08 CalibrationDate 0x0E DATE 113,9;Char[8]

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Thegascalibrationisformedbya3

gradepolynomial(y=a+bx+cx²+dx³).Thispolynomialwillperform

linearizationtoachievethewantedaccuracy.Upto8polynomialscanbestoredfordifferentfluids.

Eachfluidhasitsowninstance(1...8).

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GASCALIBRATIONOBJECTSERVICES

GAS

CALIBRATION

OBJECT

SERVICECODE SERVICENAME SERVICEDESCRIPTION

0x34 0x0E Get_Attribute_Single Returnsthecontentsofthespecifiedattribute

0x34 0x10 Set_Attribute_Single Modifiesanattributevalue

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