DeviceNet Communication
profile
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09/10 MN05013007Z-EN
The data transfer on the DeviceNet communication bus is
indicated in the following table. The data flow indicates the
telegram for reading the date and time in the easy700
(
section “Read/write date and time” on page 101).
The EASY222-DN communication module has the
MAC ID = 3. It must be taken into account with the data
sequence that the access is implemented in fragmented
form. Further information on this is provided in the ODVA
specification.
Connection ID = CAN identifier
Meaning
10
9
8
7
6
5
4
3
2
1
0
1
0
MAC ID
Message ID
Message group 2
1
0
Source MAC ID
0
0
0
Master’s I/O Bit–Strobe Command
Message
1
0
Source MAC ID
0
0
1
Reserved for Master’s Use – Use is TBD
1
0
Destination MAC ID
0
1
0
Master’s Change of State or Cyclic
Acknowledge Message
1
0
Source MAC ID
0
1
1
Slave’s Explicit/ Unconnected Response
Messages
1
0
Destination MAC ID
1
0
0
Master’s Explicit Request Messages
1
0
Destination MAC ID
1
0
1
Master’s I/O Poll Command/Change of
State/Cyclic Message
1
0
Destination MAC ID
1
1
0
Group 2 Only Unconnected Explicit
Request Messages
1
0
Destination MAC ID
1
1
1
Duplicate MAC ID Check Messages
Source: ODVA- DeviceNet Specification Release 2.0, Chapter 7-2
Summary of Contents for EASY222-DN
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