Emerson Process Management 2400S manual Instance ID, Data description, Size, Bytes, Data type

Pressure Compensation and Temperature Compensation

Figure 9-4Configuring external temperature compensation with a DeviceNet tool

(1) Temperature measurement unit		Class: Analog Input Point Object (0x0A)
		Instance: 4
	Set temperature unit
must be configured to match		Attribute ID: 102
temperature unit used by		Value: See Table 6-6
external device. See		Service: Set
Section 6.3.
(2) See Section 9.4.
		Class: Calibration Object (0x65)
		Instance: 1
		Attribute ID: 25
	Enable temperature
		Data type: BOOL
	compensation
		Value:
		· 0 = disabled
		· 1 = enabled

		Use static
		temp value?
	No			Yes
					Class: Calibration Object (0x65)
					Instance: 1
Set up output			Set static value
					Attribute ID: 26
assembly(2)
					Data type: REAL
					Service: Set

9.4Obtaining 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	8 bytes	Bytes 0–3	REAL
	External temperature		Bytes 4–7	REAL

Compensation

Measurement Performance

Troubleshooting

Defaults

Configuration and Use Manual 87