
Chapter 3 Install and Wiring
6F8C1686
28
3.6
Network power and ground
In the DeviceNet, the power for communication is supplied from the power line (V+/V-) of the DeviceNet cable
via the network connector. This section describes how to supply network power to the DeviceNet cable and
how to configure the network power. It also describes how to ground the network.
3.6.1
Network power supply method
To supply network power to the DeviceNet cable, it is necessary to use the power strip (
Figure 3-4) specified
by DeviceNet. The power strip is used to connect the power supply to the trunk cable. The power strip has the
following functions.
1)
When multiple power supplies are connected to a single network, prevent backflow of current to the power
supply due to potential difference
2)
Support up to 16A from power supply directly connected to power tap
3)
A protection circuit (fuse or circuit breaker) limits the current flowing from the power tap in each direction
of the cable to a maximum of 8A
4)
Provides network grounding terminal
Figure 3-4 Power tap configuration
The following are the power tap products specified by DeviceNet.
Model name
1485T-P2T5-T5
Manufacturer
Rockwell Automation
Protection
circuit
Power tap
CAN_H
CAN_L
Shield / Drain
V-
V+
Ground terminal
V- V+
Signal
↑
Network power supply
(The maximum cable length from the power supply
to the power tap is 3 [m])
DeviceNet
Cable
Trunk cable
Protection
circuit
Содержание DeviceNet nv Series
Страница 1: ...Unified Controller nv Series type1 light DeviceNetTM Module DN611B Instruction Manual 6F8C1686 ...
Страница 30: ...Chapter 1 DN611B Introduction 6F8C1686 14 ...
Страница 92: ...Chapter 4 Settings 6F8C1686 76 3 Register the slave node Figure 4 16 Register the slave node Drag and Drop ...
Страница 149: ...13 3 133 B Appendix B Outside Dimension ...
Страница 150: ...Appendix B Outside Dimension 6F8C1686 134 Figure B 1 External dimension 135 mm 35mm 130 mm 111 5mm 105mm ...
Страница 151: ...13 5 135 C Appendix C Related products C 1 Network components 136 C 2 DeviceNet setting tool 138 ...
Страница 159: ...1686 2 2201 ...