Chapter 2 Features
2-1
Chapter 2
Features
2.1
Features of DeviceNet
1. Multi-Vendor
Network
Since the EH series PLCs conform to the DeviceNet standard, which is an open field network standard, it is
possible to connect master/slave devices provided by Hitachi as well as by other companies.
2. Versatile Connection Methods
Besides using Multidrop of the trunk line, it is possible to use Multi-branch and Multidrop of drop lines
by means of Device Tap.
Multidrop of the trunk line
Device
Device
Multidrop of the drop line
(Device Tap)
Device
Device
Multi-branching using a Device Tap connected
to the trunk line
(Device Tap)
Device
Device
Figure 2.2 Connection methods for DeviceNet
Figure 2.1 Hitachi made DeviceNet products
EH-150 DeviceNet
Master module
NX-SDC (distributed controller)
EH-150 DeviceNet
Slave controller
Discrete I/O Slave unit
The other
vendor’s Device
Inverter
L100DN/SJ100DN
AC Servo
AD series
