INTRODUCTION
DOCUMENT CONVENTIONS
1 - 4
WBPEEUI240752A0
®
5. Refer to the repair and replacement procedures to replace
a module.
6. Use the support services section for information on order-
ing spare modules and warranty information.
DOCUMENT CONVENTIONS
The
in a nomenclature item indicates variables for that posi-
tion, i.e., IMDSI1
.
GLOSSARY OF TERMS AND ABBREVIATIONS
Table
contains those terms and abbreviations that are
unique to Elsag Bailey or have a definition that is different
from standard industry usage.
REFERENCE DOCUMENTS
Table
lists Elsag Bailey instructions for equipment that is
referenced in this instruction.
Table 1-1. Glossary of Terms and Abbreviations
Term
Definition
EWS
Engineering work station.
Function Code (FC)
An algorithm which manipulates specific functions.
These functions are linked together to form the con-
trol strategy.
I/O Expander Bus
Parallel communication bus between the control and
I/O modules.
MFP
Multi-function processor module. A multiple loop con-
troller with data acquisition and information process-
ing capabilities.
MMU
Module mounting unit. A card cage that provides
electrical and communication support for INFI 90
OPEN/Network 90 modules.
OIS
Operator interface station. Integrated operator con-
sole with data acquisition and reporting capabilities.
It provides a digital access into the process for flexi-
ble control and monitoring.
TM
Termination module. Provides input/output direct
connection between plant equipment and the INFI 90
OPEN/Network 90 modules.
TU
Termination unit. Provides input/output direct con-
nection between plant equipment and the INFI 90
OPEN/Network 90 modules.