AutomationDirect DL205 User Manual

DL205 User Manual, 4th Edition, Rev. D
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Chapter 5: Standard RLL Instructions
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Filter Over Time - BCD (FILTER) (IB-422)
Filter Over Time BCD will perform a first-order filter on the Raw Data on a defined time
interval. The equation is:
New = Old + [(Raw - Old) / FDC]
where,
New: New Filtered Value
Old: Old Filtered Value
FDC: Filter Divisor Constant
Raw: Raw Data
The Filter Divisor Constant is an integer in
the range K1 to K100, such that if it equaled
K1 then no filtering would be done.
The rate at which the calculation is performed is specified by time in hundredths of a second
(0.01 seconds) as the Filter Freq Time parameter. Note that this Timer instruction is embedded
in the IBox and must NOT be used anywhere else in your program. Power flow controls
whether the calculation is enabled. If it is disabled, the Filter Value is not updated. On the
first scan from Program to Run mode, the Filter Value is initialized to 0 to give the calculation
a consistent starting point.
FILTER Parameters
• Filter Frequency Timer: specifies the Timer (T) number which is used by the Filter instruction.
• Filter Frequency Time (0.01sec): specifies the rate at which the calculation is performed.
• Raw Data (BCD): specifies the V-memory location of the raw unfiltered BCD value.
• Filter Divisor (1 to 100): this constant is used to control the filtering effect. A larger value will
increase the smoothing effect of the filter. A value of 1 results with no filtering.
• Filtered Value (BCD): specifies the V-memory location where the filtered BCD value will be
placed.
DS5 Used
HPP
N/A
Parameter DL205 Range
Filter Frequency Timer ⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠ T T0-377
Filter Frequency Time (0.01 sec) ⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠ K K0-9999
Raw Data (BCD) ⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠ V See DL205 V-memory map - Data Words
Filter Divisor (1-100) ⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠ K K1-100
Filtered Value (BCD) ⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠⸠ V See DL205 V-memory map - Data Words
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AutomationDirect DL205 Specifications

General

Brand	AutomationDirect
Model	DL205
Category	Controller
Language	English