Module filter templates (future use only), Trusted, Toolset suite t8082 – Rockwell Automation T8082 Trusted Toolset Suite User Manual

Page 32

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Trusted

TM

Toolset Suite T8082

Issue 14 Feb 10

PD-T8082

32

When the correct instructions have been entered, the user must select the OK button. This will return
the user to the Template Creation window which permits the newly created template to be saved. The
filename must not include any spaces. Underscores are recommended.

2.3.14.

Module Filter Templates (Future Use Only)

The Module Filter template is used to configure the filter type to use for each of the 40 channels on an
input module. There are two types of entries for this template; default and channel settings.

The default entry sets the default filter type for all channels on the module. It has the following syntax.

Default = < 0 | 1 | 2 | 3 >

Input filtering for individual channels can be configured using the following

channel# = < default > | < 0 | 1 | 2 | 3 >

The module supports 4 input filter types, relating to the numbers in the syntax above.

0

4ms filter

1

4ms filter, same as 0

2

50Hz notch filter

3

60Hz notch filter

Note: 50Hz and 60Hz filters can not be mixed on the same module.

4ms Filter

The samples are passed straight through with only a 4ms signal averaging filter. The
sampling frequency depends on whether another filter has been selected for any other
channels. The default sampling frequency is 1.0ms.

50Hz Filter (default)

This will filter out a 50Hz signal in the sample data. The module sampling frequency is
set to 1ms, the filtering is performed by a moving boxcar average over 20 samples.
The time is delayed for the channel by 20*1.0=20ms to accommodate for the filter.
This is the default line filter used.

60Hz Filter

This will filter out a 60Hz signal in the sample data. The module sampling frequency is
set to 1.04ms, the filtering is performed by a moving boxcar average over 16 samples.
The time is delayed for the channel by 16*1.04=16.64ms.

Since the propagation delays of the filters are a known constant, when a change of input state passes
through the filter, the corresponding SOE event time stamp is adjusted by the propagation delay.

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