User guide

10 Rockwell Automation Publication 1768-UM002C-EN-P - April 2012
Preface
You can view or download publications at
http://www.rockwellautomation.com/literature
. To order paper copies of
technical documentation, contact your local Allen-Bradley® distributor or
Rockwell Automation sales representative.
Understanding Terminology
This table defines terms used in this manual.
Logix5000 Controllers Execution Time and Memory Use Reference
Manual, publication 1756-RM087
Provides information on estimating the execution time and memory use for instructions
Logix5000 Controllers Import Export Reference Manual, publication
1756-RM084
Provides information on using RSLogix™ 5000 Import/Export utility
PhaseManager User Manual, publication LOGIX-UM001
Provides information on programming the controller to use equipment phases in a standard application
SERCOS and Analog Motion Configuration and Startup Manual,
publication MOTION-UM001
Provides information on configuring the controller for motion axes, coordinate system, and motion modules in
standard applications
Industrial Automation Wiring and Grounding Guidelines, publication
1770-4.1
Provides in-depth information on grounding and wiring programmable controllers
Resource Description
Table 1 - Terms and Definitions
Abbreviation Full Term Definition
1oo2 One Out of Two Refers to the behavioral design of a multi-processor safety system.
CIP Common Industrial Protocol A communication protocol designed for industrial automation applications.
CIP Safety Common Industrial Protocol – Safety Certified SIL 3/PLe rated version of CIP.
DC Diagnostic Coverage The ratio of the detected failure rate to the total failure rate.
EN European Norm. The official European standard.
GSV Get System Value An instruction that retrieves specified controller-status information and places it in a destination tag.
— Multicast The transmission of information from one sender to multiple receivers.
PFD Probability of Failure on Demand The average probability of a system to fail to perform its design function on demand.
PFH Probability of Failure per Hour The probability of a system to have a dangerous failure occur per hour.
PL Performance Level ISO 13849-1 safety rating.
RPI Requested Packet Interval The expected rate in time for production of data when communicating over a network.
SNN Safety Network Number A unique number that identifies a section of a safety network.
SSV Set System Value An instruction that sets controller system data.
— Standard An object, task, tag, program, or component in your project that is not a safety-related item.
— Unicast The transmission of information from one sender to one receiver.