Motion Coordinator Technical Reference Manual
Communications Protocols 13-14
DeviceNet
Connection Types Implemented
There are 3 independent connection channels in this DeviceNet implementation:
1.
Group 2 predefined master/slave connection
This connection will only handle Master/Slave Allocate/Release messages. The
maximum message length for this connection is 8 bytes.
2.
Explicit message connection
This connection will handle explicit messaging for the DeviceNet objects defined
below. The maximum message length for this connection is 242 bytes.
3.
I/O message connection
This connection will handle the I/O poll messaging. The maximum message length
for this connection is 32 bytes.
DeviceNet Objects Implemented
The Motion Coordinator supports the following DeviceNet object classes.
Class Object Description
0x01 Identity Identification and general information about the device
0x02 Router Provides a messaging connection point through which a
Client may address a service to any object class or
instance residing in the physical device
0x03 DeviceNet Provides the configuration and status of a DeviceNet port
0x04 Assembly Permits access to the I/O poll connection from the
explicit message channel
0x05 Connection Manages the characteristics of the communications
connections
0x8a MC Permits access to the VR variables and TABLE data on the
Motion Coordinator
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