Message Data Transfer - Datalogic DeviceNet AMT58 Series Instruction Manual

AMT58x-DN DeviceNET®
Example
Allocation choice =
01h: used to read and write configuration parameters without "I/O
Messages".
03h: activate Polled communication.
61h: activate Cyclic mode communication without ACK.

6.4.4 Message data transfer

These messages are meant to set, read, save or restore
configuration parameters.
Data transfer request:
Byte bit7
0 F=0
1 R/R=0
2
3
4
5...7
Data transfer response:
Byte bit7
0 F=0
1 R/R=1
2...7
Service code, Class ID, Instance ID and Attribute ID are meant to set
the type and content of data bytes. They must be specified according
to the "Object dictionary" (see section "6.5 Object dictionary").
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bit6 bit5 bit4 bit3
0 Master MAC-ID
Service Code
Class ID
Instance ID
Attribute ID
Data byte
bit6 bit5 bit4 bit3
0 Master MAC-ID
Service Code
Data byte
bit2 bit1 bit0
bit2 bit1 bit0