Epson RC700, Руководство пользователя

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1. Introduction
RC700 / RC90 Option Fieldbus I/O Rev.14 3
1.2 DeviceNet
1.2.1 Overview of DeviceNet
DeviceNet is a fieldbus network that provides easy interconnection between control
devices (PLC, PC, sensor, actuator, etc.).
DeviceNet was developed by Allen-Bradley as an open communication standard to
connect various field devices (sensor, actuator, Robot Controller, etc.). Because of the
open communication standard, DeviceNet users can easily construct a multi-vendor
system with various devices developed around the world.
Master Devices
Motor Driver
from Company A
Motor Driver
from Company B
Intelligent I/O
from Company C
Intelligent I/O
from Company D
Photo Sensor
from Company E
Analog Device
from Company G
HMI Device
from Company F
DeviceNet Network
1.2.2 Features of DeviceNet
Reduced Wiring
Compared with parallel wiring, DeviceNet employs a dedicated 5-wire cable (signal wires
and power wires) which substantially reduces the number of necessary wires, wiring time
and cost.
Detachable communication connectors provide you with simple wiring between nodes and
easy network separation or reconstruction.
Specified environment-resistance cables allow you to construct an environment-resistant
system at low cost.
Open Standard (Multi-vendor)
Due to an open communication standard, various devices from many manufacturers are
available. Standardized communication connectors provide you with easy network
reconstruction.
Maintenance spare parts stored on site (factory, etc.) can be reduced because different
manufacturers’ devices can be used in case of a breakdown. Similar products are available
around the world due to a global standard DeviceNet.