Analog Data Scaling - ABB 620 Series Manual

1MAC459571-IB C
3.2.3.1
620 series ANSI
Communication Protocol Manual
events though other channels, for example, LHMI, WHMI and other communication
protocols.
There are four scaling options associated with analog input reporting.
• None: the reported value is the process value.
• Multiplication: the process value is multiplied by a constant. An offset is added
producing the reported value.
• Division: the process value is divided by a constant. An offset is added producing the
reported value.
• Ratio:
• Configuration-time ratio scaling: Find R for new set of {in_min, in_max,
out_min, out_max} R = (out_max - out_min)/(in_max - in_min)
• Runtime ratio scaling: Reported value = (inval - in_min) * R + out_min
The analog input event buffer size is set to 150.
Table 6: Analog inputs
Description
Static (steady-state) object number
Change event object number
Static variation reported when variation 0 requested
(default setting)
Change event variation reported when variation 0
requested (default setting)
Table 7: Default Class assignment for analog input data
Point index Name/description
See the point list manual.

Analog data scaling

There are four scaling modes available for processing DNP3 analog input data.
• None
• Multiplicative
• Divisor
• Ratio
Vendor-specific implementation
Values
30
32
2 (16-BIT Analog Input)
4 (16-BIT Analog Input change with time)
Default deadband
Configurable IED setting
Section 3
Default change event
assigned class (1, 2, 3 or
none)
2
15