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Configuration and Use Manual 87
Pressure Compensation and Temperature Compensation
Measurement Performance DefaultsTroubleshootingCompensation
Figure 9-4 Configuring external temperature compensation with a DeviceNet tool
9.4 Obtaining external pressure and temperature data
The DeviceNet output assemblies used to obtain external pressure and/or temperature data are listed
in Table 9-1. Use standard DeviceNet methods to implement the required connection.
Table 9-1 Output assemblies used for pressure or temperature compensation
Instance ID Data description Size Bytes Data type
50 External pressure 4 bytes Bytes 0–3 REAL
51 External temperature 4 bytes Bytes 0–3 REAL
52 External pressure
External temperature
8 bytes Bytes 0–3
Bytes 4–7
REAL
REAL
Enable temperature
compensation
Class: Calibration Object (0x65)
Instance: 1
Attribute ID: 25
Data type: BOOL
Value:
· 0 = disabled
· 1 = enabled
Set temperature unit
Class: Analog Input Point Object (0x0A)
Instance: 4
Attribute ID: 102
Value: See Table 6-6
Service: Set
Yes
Use static
temp value?
No
Set up output
assembly
(2)
Class: Calibration Object (0x65)
Instance: 1
Attribute ID: 26
Data type: REAL
Service: Set
Set static value
(1) Temperature measurement unit
must be configured to match
temperature unit used by
external device. See
Section 6.3.
(2) See Section 9.4.