SMC Networks JXC91 User Manual

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No.SFOD-OMT0006-F
21. Definitions and terminology
Terminology
Definition
C
Communication
speed
Data transmission speed of a network such as a Fieldbus network.
The speed is determined by upper devices (PLC etc.). The unit is bit
per second (bps).
Communication cycle
time
This is a cycle of sending data from masters to slaves (JXC91
controller).
D
DLR
Device Level Ring
Performs fast switching to a redundant communication route, when a
problem occurs within a Ring network.
E
Ethernet
The most commonly used LAN technology that was standardized by
IEEE802.3
EDS file
Allows a device to be configured for a EtherNet/IP network, using PLC
setting software.
The file describes data exchange, device information and supported
EtherNet/IP features.
F
Fieldbus
An industrial communication system, which uses a defined protocol to
transfer data between devices on a network. A typical automation
system will use a fieldbus network to exchange data between a PLC
master and the actuators/sensors.
I
IP address
A unique address that identifies a device on a network. It is referred to
as a logical address while the MAC address is known as a physical
address.
M
MAC address
This is a physical address, which is uniquely assigned to any hardware
device on a network.
This address is permanently written to the device before shipment.
P
PLC
Abbreviation of Programmable Logic Controller, a digital computer
used for automation of electromechanical processes.
T
Topology
Connection configuration of the Fieldbus network
Expresses how each terminal and control components are connected.
The typical topology is star type, linear type and ring type.
Trademark
The company name, system name, and product name described in this document are registered
trademarks of each individual company. In this document TM and (R) are not specified.

SMC Networks JXC91 Specifications

General

Brand	SMC Networks
Model	JXC91
Category	Controller
Language	English