Rockwell Automation 193-EC4 EC4 Current Monitoring Relay User Manual - Manual (Page 125)

126 Rockwell Automation Publication 193-UM011A-EN-P - September 2010
Appendix B DeviceNet Information
➊ Allocation byte
Bit 0 Explicit Messaging
Bit 1 Polled I/O
Bit 4 Change of State I/O
Bit 5 Cyclic I/O
Bit 6 Acknowledge Suppress I/O
The following services are implemented for the DeviceNet Object:
Assembly Object – Class
Code 0x04 Output Assemblies
The following Assembly Instances are implemented. Note that most of these
assemblies are part of the “motor control hierarchy” of the DeviceNet
specification. Other vendor specific assemblies have been added to allow the
monitoring of the auxiliary inputs, etc.
The following assemblies are similar to those found in the Motor Starter Profile.
The only difference is that OutA and OutB map to Discrete Output Points
instead of the Control Supervisor. The instance numbers are 100 plus the
number assigned in corresponding assemblies in the Motor Starter Profile.
Table 17 - DeviceNet Object Instance Attributes
Attribute
ID Access
Rule Name Data Type Value
1 Get/Set MAC ID USINT 0...63
2 Get/Set Baud Rate USINT 0 = 125 kbaud
1 = 250 kbaud
2 = 500 kbaud
5 Get Allocation Information
Allocation’s Choice Byte
Master’s MAC ID
Structure
of:
BYTE
USINT
Allocation byte ➊
0...63 = address
255 = unallocated
Table 18 - DeviceNet Object Common Services
Service
Code Implemented for: Service Name
Class Instance
0x0E Yes Yes Get_Attribute_Single
0x10 No Yes Set_Attribute_Single
0x4B No Yes Allocate_Master/Slave_Connection_Set
0x4C No Yes Release_Master/Slave_Connection_Set
Table 19 - Assembly Object Instance 2 Data Format (“TRIP RESET CMD”)
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit3 Bit 2 Bit 1 Bit 0
0 Fault
Reset