Configure 29-Bit Id Input Message Buffer (2906) - Omron CJ1W-CORT21 Operation Manual

4 Message Communications
Note 1 On response code 0000, the unit configures the input (receive) message buffer identified with
buffer number with the following properties:
• Extended identifier length (see additional information below)
• Identifier number
• Big or little endian format, see Send Buffer Area on page 8
Additional Information
The last command 2905 or 2906 sent to the unit determines whether 11-bit or 29-bit identifiers
are used for all input message buffers. If the last command is 2905, 11-bit identifiers will be used.
If the last command is 2906, 29- bit identifiers will be used.
4-2-5

Configure 29-Bit ID Input Message Buffer (2906)

Each Input (Receive) Buffer requires the following settings that are configured using the command
code 2906.
• the 29-bit identifier
• the use of little endian or big endian
Command Block
The following table defines the minimum and maximum values for each item in the command block with
setting details.
Setting
Buffer Number
Identifier 29-bit
Big or Little Endian
Response Block
Issuing a Configure 29-Bit ID Input (Receive) Message Buffer command will result in the following
response End Codes.
4-16
29 06
Command
Buffer Identifier
Code
Number
Minimum Value (Hex)
0000
00000000
0000
29 06
Command
Code
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
Big or
29-bit Little
Endian
Maximum Value (Hex)
027F
1FFF FFFF
0001
End
Code
Setting Details
Defines which buffer to
configure (0 to 639)
Identifier value
• 0000: Big Endian
• 0001: Little Endian