Table of Contents
Advertisement
MF Device
A device that supports EtherNet/IP. For example, PN/MF Coupler or IM155-6 MF HF.
Parameter assignment
The term parameterization denotes the transfer of parameters from the IO Controller to the
IO Device.
PELV
Protective Extra Low Voltage = extra low voltage with safe isolation that is grounded.
Power supply unit
A power supply unit supplies power to the field devices and the distributed process I/Os
connected to them.
Prioritized startup
Prioritized startup denotes PROFINET functionality for accelerating the startup of IO Devices in
a PROFINET IO system with RT and IRT communication. The function reduces the time that
the correspondingly configured IO Devices require in order to return to the cyclic user data
exchange in the following cases:
• After the supply voltage has returned
• After station recovery
• After IO Devices have been activated
Process image
The process image is part of the IO Controller's system memory. The signal states of the input
modules are transferred to the process-image inputs at the beginning of the cyclic program.
At the end of the cyclic program, the process image of the outputs is transferred to the IO
Controller as signal status.
PROFIBUS International
Technical committee dedicated to the definition and development of the PROFIBUS and
PROFINET standard.
PN/MF Coupler
Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
Glossary
139
Advertisement
Table of Contents
