Rockwell Automation Publication 5094-UM001C-EN-P - April 2019 11
Preface
Terminology
This table defines terms that are used in this manual.
Abbreviation Full Term Definition
1oo2 One out of Two Identifies the programmable electronic controller architecture.
CIP™ Common Industrial Protocol An industrial communication protocol that is used by Logix 5000-based automation
systems on EtherNet/IP™, ControlNet®, and DeviceNet® communication networks.
CIP Sync™ Common Industrial Protocol Synchronization CIP Sync provides the increased control coordination needed for control applications
where absolute time synchronization is vital to achieve real-time synchronization
between distributed intelligent devices and systems.
CIP Safety™ Common Industrial Protocol – Safety Certified SIL-rated version of CIP.
— Connection Logical communication channel for communication between nodes. Connections are
maintained and controlled between masters and slaves.
CL Claim Limit The maximum safety integrity level (SIL) that can be achieved.
DC Diagnostic Coverage The ratio of the detected failure rate to the total failure rate.
EDS Electronic Data Sheet, A template that is used in RSNetWorx™ software to display the configuration
parameters, I/O data profile, and connection-type support for a given I/O module.
RSNetWorx software uses these simple text files to identify products and commission
them on a network.
EN European Norm. The official European Standard.
ESS Energy Storage System Used for backup for memory retention at powerdown on Compact GuardLogix® 5380
controllers. The ESS is inside the controller and cannot be removed.
GSV Get System Value A ladder logic instruction that retrieves specified controller status information and
places it in a destination tag.
MTTF Mean Time To Failure The length of time that a device or other product is expected to remain reliable in
operation.
— 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.
ODVA Open DeviceNet Vendor Association A nonprofit association of vendors that are established for the promotion of CIP
networks.
PC Personal computer Computer that is used to interface with and control a Logix-based system via the
Studio 5000® environment.
PFD Probability of Failure on Demand The average probability of a system to fail to perform its design function on demand.
PFH Average frequency of a dangerous failure per hour The probability of a system to have a dangerous failure occur per hour.
PL Performance Level ISO 13849-1 safety rating.
— Proof test Periodic test that detects failures in a safety-related system so that, if necessary, the
system can be restored to an as-new condition or as close as practical to this condition.
— Safety (devices) Devices or portions of devices that have functional safety capability.
SIL Safety Integrity Level A relative level of risk-reduction provided by a safety function, or to specify a target
level of risk reduction.
SNN Safety Network Number A unique number that identifies a section of a safety network.
SRT Safety Reaction Time A consideration of delays or latencies within the safety system.
SSV Set System Value A ladder logic instruction that sets controller system data.
— Standard (devices) Devices or portions of devices that do not have functional safety capability.
— Unicast The transmission of information from one sender to one receiver.
To Next Page
Loading...
Need help?
General
