Fieldbus Discrete Input Data Manipulation; Figure 9 Integration Of Fieldbus Device Digital Input Signal With Control Builder Control - Honeywell Series A User Manual

CPM/CEE
FIM
Fieldbus
Device
Figure 9 Integration of fieldbus device digital input signal with Control

Fieldbus Discrete Input data manipulation

When the OUT from the fieldbus Discrete Input function block is wired to the DI[n]
input for a DEVCTL function block, the Control Builder creates a CEE discrete input
agent to handle the digital input from the fieldbus block. The block-like discrete input
agent maps the data structure (DS-66) of the OUT parameter to the Experion DI[n] with
status parameter. It interprets the value portion in fieldbus terms as a Boolean for
Discrete Input (DI) block and as the appropriate multi-state representation for special
fieldbus Device Control (DC) block. The value is converted and represented in Control
Builder at the output.
The discrete input agent accepts inputs from either a published parameter or a
client/server read parameter, depending upon the communication method used.
R400 Experion PKS Series A Fieldbus Interface Module User's Guide
July 2010
3. Fieldbus Integration With Experion System
CM
Device
DI[1]
Control
FIM
Digital
Input
OUT
Transducer
Builder control strategy
Honeywell
3.2. Control Integration
DO[1]
SO
DOC
CEE = Control Execution Environment
CM = Control Module
CPM = Control Processor Module
FIM = Fieldbus Interface Module
DOC = Digital Output Channel
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