Vision™ OPLC™ V570-57-T20B, V570-57-T40B
Installation Guide
8
Unitronics
CANbus
These controllers comprise a CANbus port. Use
this to create a decentralized control network using
one of the following CAN protocols:
CANopen: 127 controllers or external
devices
Unitronics’
proprietary
UniCAN:
60
controllers, (512 data bytes per scan)
The CANbus port is galvanically isolated.
CANbus Wiring
Use twisted-pair cable. DeviceNet® thick shielded
twisted pair cable is recommended.
Network terminators: These are supplied with the
controller. Place terminators at each end of the
CANbus network.
Resistance must be set to 1%, 121
Ω
, 1/4W.
Connect ground signal to the earth at only one
point, near the power supply.
The network power supply need not be at the end
of the network
CANbus Connector
24V Power Supply
+
+V
L
PE
H
+V
Circuit
protection
device
121
terminating
resistor
121
terminating
resistor
+V
L
PE
H
+V
+V
L
PE
H
+V
The information in this document reflects products at the date of printing. Unitronics reserves the right, subject to all applicable laws, at any time, at its sole
discretion, and without notice, to discontinue or change the features, designs, materials and other specifications of its products, and to either permanently or
temporarily withdraw any of the forgoing from the market.
All information in this document is provided "as is" without warranty of any kind, either expressed or implied, including but not limited to any implied warranties of
merchantability, fitness for a particular purpose, or non-infringement. Unitronics assumes no responsibility for errors or omissions in the information presented in
this document. In no event shall Unitronics be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever arising
out of or in connection with the use or performance of this information.
The tradenames, trademarks, logos and service marks presented in this document, including their design, are the property of Unitronics (1989) (R"G) Ltd. or other
third parties and you are not permitted to use them without the prior written consent of Unitronics or such third party as may own them.
DIG-V570-TX0B 08/08
