ACH550-UH User’s Manual 171
Serial Communication – EFB
Supported Features
In the N2 Fieldbus protocol the ACH550 drive appears as a “virtual object”.
A virtual object is made up of:
• Analog Inputs
• Binary Inputs
• Analog Outputs
• Binary Outputs
• Internal values for Floating point, Integer, and Byte values.
The ACH550 drive does not support N2 Fieldbus communication “internal values”.
All of the Analog and Binary I/O objects are listed below, starting with "N2 Analog
Input Objects" on page 173.
Analog Input – The analog input objects support the following features:
• Analog Input actual value in engineering units
• Low Alarm limit
• Low Warning limit
• High Warning limit
• High Alarm limit
• Differential value for the hysteresis of the Alarms and Warnings
• Change of State (COS) enabled
• Alarm Enabled
• Warning Enabled
• Override value is received, but there is no action taken.
Binary Input – The binary input objects support the following features:
• Binary Input actual value
• Normal / Alarm state specification
• Alarm Enabled
• Change of State (COS) enabled
ACH550
Analog Inputs
Binary Inputs
Internal values, Float, Integer, Byte
Analog Outputs
Binary Outputs
Virtual Object
Metasys
Note: Metasys inputs are drive outputs and
drive inputs are Metasys outputs
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