Digital Input Configuration - ABB SM2000 User Manual

...4 CONFIGURATION
...4.6.2 Analog Input Configuration
Filter time constant
Fault detect level (%)
Broken sensor direction

4.6.3 Digital Input Configuration

Note. This tab is displayed only if the Source ID for this Recording Channel is a digital source – see Section 4.6.1.
Digital I/P Totalizer
Set Up
Closed
Digital ON tag
Full
Digital OFF tag
•1 If this parameter is changed, a new internal data file for this recording channel is created. All historical data stored internally for this
channel is lost.
56
In seconds
10%
Upscale
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.
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.).