Annex
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PC Cards cifX Compact PCI, Mini PCI, Mini PCIe, PCI-104 | Installation, Operation and Hardware Description
DOC120205UM53EN | Revision 53 | English | 2019-03 | Released | Public
© Hilscher, 2008-2019
Real-Time Ethernet
Real-Time Ethernet (Industrial Ethernet) is an extension of the Ethernet
networking technology for industrial purposes with very good real-time
features and performance. There is a variety of different Real-Time
Ethernet systems on the market which are incompatible with each other.
The most important systems of these are
•
CC-Link IE Field-Basic
•
EtherCAT
•
EtherNet/IP
•
Ethernet
POWERLINK
•
Open
Modbus/TCP
•
PROFINET
•
Sercos
•
VARAN
Register
A register is a 16-bit wide storage area for data which can be accessed and
addressed as a unit by some of the Modbus Function Codes.
Depending on the used Modbus function code a single register or multiple
registers sequentially located can be accessed.
Modbus differs Input Registers (FC 4) and Holding Registers (FC 3, 6, 16,
23).
Remanent
Remanent memory holds its data even after power-off, for instance flash
memory is remanent. It is also called non-volatile memory.
RJ45
A connector type often used for Ethernet connection. It has been
standardized by the Federal Communications Commission of the USA
(FCC).
Sercos
A communication system for industrial Ethernet designed and developed by
Bosch-Rexroth and supported by Sercos International.
Slave
Type of device that is configured by the Master and which then performs
the communication
Switch
A network component connecting multiple communication partners (or even
entire branches of a network) with each other. A switch is an intelligent
network component which analyzes network traffic in order to decide on its
own. For the connected communication partners a switch behaves
transparently.
