Terminology

This table defines the terms that are used in this publication.
Terminology
Acronym
Full Term
Definition
BP
Backplane Power
Power that is generated from module power by the adapter and expansion power, and supplied to the I/O system through the backplane.
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.
COP
Copy File
COP is a command in PLC programming. This command copies the files from one memory location to another within the system.
CPS
Synchronous Copy File
CPS is a command in PLC programming. This command copies the files from one memory location to another within the system synchronously, which means the operation completes fully before the PLC continues with the next task.
LA
Local Actuator - Power
Local Actuator Power supplied through the RTB.
MB
Mounting Base
A device that provides data and power connections from the backplane to the installed module.
MP
Module Power
Power that is supplied to the adapter and expansion power.
ODVA
Open DeviceNet Vendor Association
A nonprofit association of vendors that are established for the promotion of CIP networks.
PL
Performance Level
ISO 13849-1 safety rating
RPI
Requested Packet Interval
Time interval (usually in milliseconds) that users are requesting their data be exchanged at
RTB
Removable Terminal Block
A component that is used for wiring field devices to.
SA
Sensor Actuator - Power
Sensor Actuator Power (24V DC nominal) for the field devices.
SELV
Safety Extra Low Voltage
An electrical system where the voltage level is considered safe under normal or fault conditions, as defined in the EN and IEC standards.
SIL
Safety Integrity Level
A relative level of risk reduction that is provided by a safety function, or to specify a target level of risk reduction.
SRT
Safety Reaction Time
The input safety reaction time is the time from when the signal changes on an input terminal to when safety data is sent to the safety controller.
The output safety reaction time is the time from when safety data is received from the safety controller to when the output terminal changes state.
VCL
Voltage Clamp Low
The low threshold for limiting the voltage level.
XT
Extreme Environment
Modules with XT at the end of their catalog numbers have design considerations and conformal coating that add a degree of protection for harsh, corrosive gas environments.
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