Yaskawa 260IF DeviceNet System - Manual (Page 27)

Network Specifications
3.1.1 Basic Network Configuration
3-2
3
3.1 Network Configuration
This section outlines the network configuration.
3.1.1 Basic Network Configuration
Connection Methods
The following diagam shows an example network connection.
Fig 3.1 Network Connection
Configuration Elements
The network is configured from the following elements.
Nodes
A node is either a slave that connects to external I/O, or the Master, which manages the I/O
of the slaves. There are no restrictions on the locations of the Master or Slaves. Any node in
the figure above can be the Master or a Slave.
Trunk Line and Drop Lines
A cable with a terminator on each end is the trunk line. Any cable branching from the trunk
line is a drop line.
Connection Methods
A node is connected using the T-branch method or multi-drop method. A T-Branch Adapter
is used to connect a node with the T-branch method. A node is directly connected to the
trunk line or a drop line with the multi-drop method. Both T-branch and multi-drop methods
T T T
T
T
T
(with terminating resistance)
Terminating
resistance
Node Node Node
Node
Node Node
Node Node
Trunk line
Drop line
T-Branch Adapter