Ethernet/Ip; Data Structures For Consuming And Producing Assemblies - IFM O3D300 Notice D'utilisation

13.4 EtherNet/IP

13.4.1 Data structures for consuming and producing assemblies

Assemblies
Instance Bytes
100 8
101 450
Consuming assembly data layout
Byte
Description
Layout of producing assembly
Byte 0-1
Description Command
word for
mirroring
Layout of command word
Bit 0
Description Error bit
This bit has no meaning in the consuming
assembly. It is used for signaling an
occured error to the PLC
Command word
Bit 0 1 2
Synchronous / asynchronous message identifier
Bit 0
Description Asynchronous message bit
Data to send exceeds processing assembly data section size
If the size of the data exceeds the size of the configured processing assembly data section size, the data
is truncated. No error is risen.
Type
Consuming (from device point of view: databuffer for receiving from PLC)
Producing (from device point of view: databuffer for sending to PLC)
0-1
Command word
2-3 4-5
Synchronous / Message
asynchronous counter
message
identifier
3 4 5 6 7
2-7
Command data
6-7 8-15
Reserved Mandatory
message data
(e.g. error code)
1-15
Command bits
Each bit represents a specific command
8 9 10 11
1-15
Bits for asynchrounous message identifier
Capteur 3D
16-449
Non mandatory
data fields
12 13 14 15
73
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