Chapter 4
Software Configuration
32
Bedrock Secure OSA Remote User Manual - BRDOC020_001
10/11/18
The fail-safe mode, default output fail-safe value, and fail-safe timeout period
are set using the Bedrock IDE. All fail-safe parameters are configured separately
for each channel on the OSA Remote.
Digital Mode of Operation
The OSA Remote can be configured for one of the digital modes of operation
listed in Table 4-6. These settings are applicable when the OSA Remote
operating mode is configured for one of the discrete input modes or for
NAMUR. The recommended digital mode of operation is affected by the input
frequency. The table shows the recommended modes for the listed input
frequencies.
Note that regardless of the mode selected, the digital, counter, and frequency
values will all update in the Bedrock IDE. The most accurate value will be the
one corresponding to the selected mode.
Debounce Filter
The OSA Remote has a programmable debounce filter. The debounce filter can
be set to values of 0-255 milliseconds. If the filter is set to zero milliseconds, no
debounce filtering will occur. A non-zero value specifies the number of
milliseconds used for debounce filtering. A timing diagram for the debounce
filter is shown in Figure 4-2.
Table 4-6 Recommended Modes of Operation
Input Frequency
Recommended Digital Mode
of Operation
Description
< 100 Hz
Digital Input
standard digital input with a
debounce filter
> 100 Hz
Counter
high-speed counter
> 100 Hz
Frequency
frequency measurement
