Honeywell Series A - Access control through GRANT_DENY parameter

3. Fieldbus Integration With Experion System
3.3. Control Mode Interaction
R400 Experion PKS Series A Fieldbus Interface Module User's Guide 63
July 2010 Honeywell
The block mode calculation of actual mode considers the input parameter status
attributes, input values, and resource state as represented graphically in the figure below.
Determine
Host Timeout
Mode
A
ctual Mode
and Target
Remote Cascade
Remote Out
Shed Option
Cascade
Primary Input
Back Calculation Input
Resource State
Block Specific Inputs
Actual and Target
Mode Calculation
Target Mode
Figure 11 Block mode calculation summary
REFERENCE - INTERNAL
Please refer to Mode Change Conditions in Appendix D for list of conditions,
which will change the mode in order of priority with Good (Non-Cascade)
status on input parameter as the lowest priority.
Access control through GRANT_DENY parameter
Every
fieldbus function block includes a GRANT_DENY parameter. It allows users to
Grant and Deny access permission to groups of function block parameters by other
devices. The following table summarizes the attributes for the Grant and Deny elements
of the parameter.
Element and Bit Attribute Description