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6
Connection
11
6. Connection
Here we provide an overview of the steps for connecting the robot controller to the network.
Network structure and cable specifications should be designed according to the materials provided by the
network interest group (PI: PROFIBUS & PROFINET International).
6.1 Network structure
PROFINET is an industrial multi-vendor network system based on Ethernet technology that is open and
promoted by PI (PROFIBUS & PROFINET International).
Since it uses standard Ethernet as its lower-level protocol, the network can coexist with general-purpose
Ethernet equipment.
A PROFINET network is typically constructed in a star topology via a switch, but since the robot controller's
PROFINET unit contains a two-port switch, a cable-saving linear network can also be constructed by daisy-
chained connection.
CAUTION
The two Ethernet ports of a PROFINET unit are for the purpose of allowing a versatile network topology within a
single subnet without using a switch. It is not possible for the two ports to be connected to different subnets.
■
Example of a cable-saving linear network using daisy-chaining
YRCX
YRCX
Host unit
(PROFINET I/O controller)
YRCX
YRCX
Max. 100m
CAUTION
Network equipment such as switches can be used if it satisfies the requirements of the PROFINET network.
However if the equipment is to be used in an environment where noise is a concern, such as a factory, equipment
that meets EMC industrial standards should be selected.
Summary of Contents for SCARA Robots YRCX Series
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