Bronkhorst DeviceNet slave interface - Manual (Page 17)

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Page 17 DeviceNet interface 9.17.026
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
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.
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
1
0x0E UINT 8
1
This is the total number of process gases currently calibrated for the device.
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]
1 The gas calibration is formed by a 3 rd 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).
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