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550-UH User’s Manual
Embedded fieldbus
Control interface
In general, the basic control interface between the fieldbus system and the drive
consists of:
Note:
The words “output” and “input” are used as seen from the fieldbus controller
point of view. For example an output describes data flow from the fieldbus controller
to the drive and appears as an input from the drive point of view.
Planning
Network planning should address the following questions:
•
What types and quantities of devices must be connected to the network?
•
What control information must be sent down to the drives?
•
What feedback information must be sent from the drives to the controlling
system?
Protocol
Control Interface
Reference for more information
Modbus
• Output Words
– Control word
– Reference1
– Reference2
• Input Words
– Status word
– Actual value 1
– Actual value 2
– Actual value 3
– Actual value 4
– Actual value 5
– Actual value 6
– Actual value 7
– Actual value 8
The content of these words is defined by profiles. For
details on the profiles used, see
ABB control profiles technical data
N2
• Binary output objects
• Analog output objects
• Binary input objects
• Analog input objects
FLN
• Binary output points
• Analog output points
• Binary input points
• Analog input points
BACnet
• Device management
• Binary output objects
• Analog output objects
• Binary input objects
• Analog input objects
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