CAN-8124/CAN-8224/CAN-8424 User Manual
CAN-8124/ CAN-8224/ CAN-8424 User Manual (Version 2.0, Aug/2007)
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connection have been removed within the Predefined Master/Slave
Connection Set definition. This, in turn, presents the means by which a
communication environment can be established using less network and device
resources. The CAN Identifier Fields associated with the Predefined
Master/Slave Connection Set are shown in Table 3.2. The table defines the
Identifiers that are to be used with all connection based messages involved in
the Predefined Master/Slave Connection Set and, as such, it also illustrates
the produced_connection_id and consumed_connection_id attributes
associated with Predefined Master/Slave Connection Objects.
Note: The Master is the device that gathers and distributes I/O data for the
process controller. Slaves are the devices from which the Master
gathers I/O data and to which the Master distributes I/O data.
Table 3.2 DeviceNet Identifiers
IDENTIFIER BITS
10 9 8 7 6 5 4 3 2 1
0
IDENTITY USAGE
HEX
RANGE
0
Group 1
Message ID
Source MAC ID
Group 1 Messages
000 –
3ff
0 1 1 0 0
Source MAC ID
Slave’s Multicast Poll Response
0 1 1 0 1
Source MAC ID
Slave’s I/O Change of State or Cyclic Message
0 1 1 1 0
Source MAC ID
Slave’s I/O Bit–Strobe Response Message
0 1 1 1 1
Source MAC ID
Slave’s I/O Poll Response or Change of
State/Cyclic Acknowledge Message
1 0
MAC ID
Group 2
Message ID
Group 2 Messages
400 –
5ff
1 0
Source MAC ID
0 0 0
Master’s I/O Bit–Strobe Command Message
1 0
Multicast MAC ID
0 0 1
Master’s I/O Multicast Poll Command Message
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/
Device Heartbeat Message/ Device
Shutdown Message
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