7. Series 8 I/O
Operations
7.7. IOM configuration values not copied during Block Copy operation
218
Series 8 I/O User's Guide
R500
Honeywell
April 2017
7.7 IOM configuration values not copied during Block
Copy operation
The following subset of the IOM configuration parameter values are not copied during a
Block Copy operation.
Uncopied IOM configuration parameters during a Block Copy
IOLINKNAME
IOLINKNUM
IOMNUM
CHNLNAME
7.8 Sequence of Events Scenarios
Input chatter scenario
The DEBOUNCE parameter specifies the minimum time input remaining at a new state,
thus creating a PV change. This timer prevents the "nuisance PV change events" by not
creating the events until the input settle.
This parameter:
may be set from 1msec intervals up to 50 msec
with zero msec indicating no debounce (all transitions logged)
Note
: Inputs are sampled every msec. In the figure below, points A, B, C, D, E, and F are
identified to illustrate the behavior of the IOM at that point of time.
Input chatter scenario - considerations
DEBOUNCE parameter is set to 4ms.
The previous valid event is with PV = LOW.
Input is scanned every 1msec.
Sequence of Events input chatter scenario
Point
Typical action