Honeywell Series A - To configure link schedule optimization

6. Operation
6.3. Monitoring Fieldbus Functions Through Monitoring Tab
272 Experion PKS Series A Fieldbus Interface Module User's Guide R400
Honeywell July 2010
Term Description
100%
length portion used natural
length portion used optimized
- 1 MUG ×
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
⎟
⎟
⎠
⎞
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⎜
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⎛
=
Latency Improvement
Factor (LIF)
(reduction factor)
Measures percent reduction in latency from start of input to end of output
100%
length loop natural
length loop optimized
- 1 LIF ×
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
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⎜
⎝
⎛
=
Publication Gap
Availability
Improvement (PGAI)
Index based on square of gap sizes greater than 18 milliseconds.
100%
gaps) pub qualifying optimized
of lengths of squares of (sum
gaps) pub qualifying natural
of lengths of squares of (sum
- 1 PGAI ×
⎟
⎟
⎟
⎟
⎟
⎠
⎞
⎜
⎜
⎜
⎜
⎜
⎝
⎛
⎟
⎟
⎟
⎟
⎟
⎠
⎞
⎜
⎜
⎜
⎜
⎜
⎝
⎛
=
To configure link schedule optimization
Step Action
1
In the Project tab, click the plus sign for the FIM icon to expose its Links in
the tree.
2
Right-click the first LINK icon and select Module Properties to open the
LINK Block Parameters form.
3
On the Main tab, click the down-arrow button in the Link Schedule
Optimization box and select OPT or OPT_NOFORCE for automatic link
schedule optimization. Otherwise, select NO_OPT to disable link schedule
optimization.
Refer to Parameters for Link Configuration in Project Mode for more
informati
on about the selections.
4
Click the down arrow button in the Sample Skew box and select SKEW or
NOSKEW for desired block execution action.
Refer to Parameters for Link Configuration in Project Mode for more
informati
on about the selections.
5
Repeat Steps 2 to 4 for other Links, as applicable.
6
Click the OK button to close the form and save the settings.