Digital Input Configuration - ABB SM1000 User Manual

Videographic Recorder
SM1000

4.6.3 Digital Input Configuration

Note. The 'Digital I/P' tab is displayed only if 'Source ID' for the Recording Channel is set to a digital signal source – see
Section 4.6.1, page 72.
•1 If this parameter is changed, internally recorded data files are recreated and unarchived data is lost.
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Set the time period over which the process variable is to be
filtered prior to being sampled (0 to 60 seconds).
Set a tolerance level (between 0 and 100% of the engineering
range) to allow for deviation of the input signal above or below
the input span before an input failure is detected.
– setting the fault detection level to 10% on an input
Example
range of 50 to 250 bar causes an 'Analog Input Failure' fault to
be detected below 30 bar and above 270 bar.
In the event of an input failure, recorder channels can be set to
drive upscale, downscale or in the direction of failure.
Upscale – channel value driven beyond full scale.
None – driven in direction of failure.
Downscale – channel value driven below zero.
•1 Note. This parameter is displayed only if 'Input type' on the
'Analog I/P' tab is set to 'Volt free digital input'. If this parameter
is changed to anything other than 'Volt free digital input', the
input channel reverts to an analog input channel – see
Section 4.6.2, page 74.
Enter the tag to be displayed on channel indicators when the
•1
digital signal is active (6 characters max.).
Note. Tags with a high percentage of capital letters and wide
characters such as 'W' or 'M' may appear truncated in some
Operator views. In such cases, use lower case letters or fewer
characters.
Enter the tag to be displayed on channel indicators when the
•1
digital signal is inactive (6 characters max.).
Enter the tag name to be displayed on channel indicators and
used to identify the channel in archive files (8 characters max.).
Note. Tags with a high percentage of capital letters and wide
characters such as 'W' or 'M' may appear truncated in some
Operator views. In such cases, use lower case letters or fewer
characters.
Enter the tag name to be displayed in the Process view and
used in the archive files (20 characters max.).
4 Configuration
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