Rockwell Automation Publication 1769-UM022C-EN-P - June 2018 11
Preface
This manual describes the necessary tasks to install, configure, program, and
operate a Compact GuardLogix® 5370 controller. This manual is intended for
automation engineers and control system developers.
Compact GuardLogix 5370 controllers are designed to provide solution for
small and medium-sized applications.
Terminology
This table defines terms that are used in this manual.
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 that is 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.
DLR Device Level Ring A communication protocol that allows multi-port EtherNet/IP devices to operate in ring topologies.
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.
NAT Network Address Translation The translation of an Internet Protocol (IP) address to another IP address on another network.
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 communicated 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.
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