4 Message Communications
4-10
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
Additional Information
3-1-2 Accessing From the User Program
for more detail regarding Send and
Receive Buffer areas.
Each Output (Send) Buffer requires the following settings that are configured using the command code
2903.
•
the 11-bit identifier
•
the method of sending (SM1 = triggered, SM2 = on change or SM3 = cyclic)
•
the send cycle
•
the use of little endian or big endian
The following table defines the minimum and maximum values for each item in the command block with
setting details.
4-2-2
Configure 11-Bit ID Output Message Buffer (2903)
Command Block
~
Data byte 0
Data byte 2
Data byte 4
Data byte 6
Data byte 1
Data byte 3
Data byte 5
Data byte 7
Buff
er 0
Data byte 0
Data byte 2
Data byte 4
Data byte 6
Data byte 1
Data byte 3
Data byte 5
Data byte 7
Data byte 0
Data byte 2
Data byte 4
Data byte 6
Data byte 1
Data byte 3
Data byte 5
Data byte 7
Data byte 1
Data byte 3
Data byte 5
Data byte 7
Data byte 0
Data byte 2
Data byte 4
Data byte 8
Data byte 1
Data byte 3
Data byte 5
Data byte 7
Data byte 0
Data byte 2
Data byte 4
Data byte 8
Data byte 1
Data byte 3
Data byte 5
Data byte 7
Data byte 0
Data byte 2
Data byte 4
Data byte 8
Buff
er 1
Buff
er
m
~
~
~
~
~
Big endian:
Little endian:
Word
U
Word
U +
1
Word
U +
2
Word
U +
3
Word
U +
4
Word
U +
(1 * 5)
Word
U +
(1 * 5) + 1
Word
U +
(1 * 5) + 2
Word
U +
(1 * 5) + 3
Word
U +
(1 * 5) + 4
Word
U +
((
B
- 1)* 5)
Word
U +
((
B
- 1)* 5) + 1
Word
U +
((
B
- 1)* 5) + 2
Word
U +
((
B
- 1)* 5) + 3
Word
U +
((
B
- 1)* 5) + 4
Data length (number of bytes)
Data length (number of bytes)
Data length (number of bytes)
Data length (number of bytes)
Data length (number of bytes)
Data length (number of bytes)
03
29
Command
Code
Buffer
Number
Identifier
11-bit
Method of
Sending
Send
Cycle
Big or
Little
Endian
Содержание CJ1W-CORT21
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Страница 116: ...5 Communications Timing 5 10 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Страница 134: ...6 Troubleshooting and Maintenance 6 18 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Страница 140: ...Appendices A 6 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Страница 141: ...Index 1 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 I Index...
Страница 144: ...Index 4 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 Index...