CAN Interface Specification
Page 53 of 60
057-295 ISSUE: 1
8.2 PROPRIETARY COMMANDS
8.2.1 CONFIGURATION
NOTE: To differentiate between the instrumentation/control and configuration, all
configuration commands in the following subsections use Data Page 1.
DSEA109 additionally supports configuration changes using the following CAN commands. DSEA109
also confirms receipt of the configuration commands.
8.2.2 MESSAGE FORMAT
Priority
Ext Data Page
Data Page
PDU Format
PDU Specific
Size (Bytes)
3
0
1
EF
DSEA109 address
8
8.2.3 DATA BYTE FORMAT
The data bytes within the Configuration Message contain the command or response information being
sent.
NOTE: Unused Bytes must be set to 0xFF (255 decimal).
Data Byte1
Data Bytes 2 to 8
Command or Response Code
Command Specific Data.
Content varies depending upon the command / response
code in Data Byte 1.
8.2.3.1
WRITE COMMAND
NOTE: Configuration Changes actioned by writing a new value to a Data Address are held
in Volatile Memory until the Store Configuration
command is used to ‘commit’ the changes to
Non-Volatile Memory. Should the AVR be powered down, any values not committed to Non-
Volatile Memory revert to their previous values.
This command is used to write the requested data to the specified data address.
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
Byte8
0x01
Data Address (16 bit)
Value (32 bit)
Unused
Write Response
A Write Command is responded to with the Write Response to confirm the receipt of the command.
Error Code
is be used to indicate any problems writing the value (refer to section entitled
Error Codes
elsewhere in this document.).
If the Write Command is successful
Updated Value
is the same as
Value
in the Write Command.
If there was an error,
Updated Value
is the current value at the specified address.
For a list of the supported Addresses, see the section entitled
Data Addresses
elsewhere in this
document.
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
Byte8
0x81
Data Address (16 bit)
Updated value (32 bit)
Error Code
