6-14 Using Explicit Messaging
Example Ladder Logic Rung
Figure 6.13 Example Set Attributes Scattered Message
Explanation of Source and Destination Data
The data structures in Figure 6.14 use 16-bit words and can set up to 40
parameters in a single message. In the Response Message, a parameter
number with the high bit set indicates that the associated pad word field
contains an error code.
Figure 6.14 Data Structures for Set Attributes Scattered Messages
Writes a scattered group of parameters (not a contiguous block).
18
PerformScatteredWrite
EN
DN
ER
Type - CIP Generic
Message Control ScatteredWriteMessage
...
MSG
Writes a scattered group of parameters (not a contiguous block).
Request (Source Data) Response (Destination Data)
Word 0 Parameter Number Word 0 Parameter Number
1 Parameter Value 1 Pad Word or Error Code
2 Parameter Number 2 Parameter Number
3 Parameter Value 3 Pad Word or Error Code
4 Parameter Number 4 Parameter Number
5 Parameter Value 5 Pad Word or Error Code
6 Parameter Number 6 Parameter Number
7 Parameter Value 7 Pad Word or Error Code
8 Parameter Number 8 Parameter Number
9 Parameter Value 9 Pad Word or Error Code
10 Parameter Number 10 Parameter Number
11 Parameter Value 11 Pad Word or Error Code
...
...
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