
Copyright 2011 Baker Hughes Company.
English–DPS 8000 Instruction Manual | 11
The readings can be filtered by a range of preset finite impulse response (FIR) filters. Refer to
“0x220D to 0x2218 – The Filter System” on page
14.
Use the CANopen software package to receive the PDO and get access to the CANopen Object
Dictionary.
Use the CANopen software package to change these values:
•
Values set with the Layer Setting Services (LSS).
•
Values in the CANopen Object Dictionary.
4.3 Quick Start
Get the current pressure and temperature values by using object 0x6130:
•
Sub-item
01 returns the pressure value in the default pressure units.
•
Sub-item
02 returns the temperature in degrees Celsius.
4.4 Primary Objects
The following procedures identify the primary objects that can be changed and monitored. Refer
to Appendix
A, “CANopen Object Dictionary,” on page
19 for a complete list.
4.5 To Change the Operation - Node ID and Baud Rate
Use the CANopen Layer Setting Services (LSS) to change these primary objects in the pressure
transducer:
Note:
To respond to LSS messages the pressure transducer must be in pre-operational mode.
•
The node ID (default value = 2).
•
The baud rate (default value = 250
kbits/s).
In addition, object 0x210C can be used to modify the node ID. Object 0x210D holds the baud rate.
To make changes to these and other data dictionary objects permanent, save them and cycle the
power to the sensor.
When using the LSS, the device must be identified. Object 0x1018 (identity) contains the
identification data. Refer to Appendix
4.6 To Change the Operation - Objects: 0x1000
-
0x1FFFF
4.6.1 0x100C to 0x100E - Error Control: Node Guarding Option
To use Node Guarding for error control, set applicable values for these objects:
•
0x100C (Guard Time).
•
0x100D (Life Time Factor).
•
0x100E (Node Guarding Identifier).
Refer to Appendix
4.6.2 0x1017 – Error Control: Heartbeat Option
To use Heartbeat for error control, set applicable values for these objects:
•
0x100E (Node Guarding Identifier).
•
0x1017 (Heartbeat Time).
Refer to Appendix
4.6.3 0x1010
01 – To Save Changes to the Data Dictionary
Use object 0x1010
01 (Store Parameter Field) to save the data dictionary to non-volatile storage.
Example:
Set the value to 0x65766173 = evas (in ASCII)
Содержание Druck DPS 8000 Series
Страница 1: ...Druck com DPS 8000 Series CAN bus Pressure Transducer Instruction Manual ...
Страница 2: ......
Страница 6: ...Copyright 2011 Baker Hughes Company iv DPS 8000 Instruction Manual English ...
Страница 10: ...Copyright 2011 Baker Hughes Company viii DPS 8000 Instruction Manual English ...
Страница 28: ...Copyright 2011 Baker Hughes Company 18 DPS 8000 Instruction Manual English ...
Страница 62: ...Copyright 2011 Baker Hughes Company 52 DPS 8000 Instruction Manual English Appendix C Bibliography ...
Страница 63: ......