Omron R6YXC1000, User Manual, Page: 118 / 260

6
Exter
nal comm
unica
tion interf
ace
6-8
Example problems caused by poor connections
External device *
YRCX
Connector metal
parts
Communication cable
FG
Potential
Ground wire was not at ground
potential or not connected.
Failure to use ground wire might
raise the voltage potential.
Improper ground wire connection
might cause electrical shock if
connector metal parts are
touched.
Malfunction or breakdown might
occur when making connection or
after connection.
* External device: Notebook computer using an AC adapter, etc.
AC100 to 200V
3. Ethernet
■
Features of Ethernet
The YRCX controller adopts the TCP/IP protocol. Therefore, the YRCX controller can exchange the data with a TCP/IP
protocol built-in device.
CAUTION
Connect the Ethernet port of the YRCX only to another controller or personal computer, and do not connect this
port to the public telephone line.
■
As the 100BASE-TX specifications are adopted, cables to be used are UTP cables (shield-less twist pair cable) or STP
cables (shielded twist pair cable).
■
Multiple controllers can be connected to the same network and all of the information can be controlled from
the specific personal computer.
■
Since the robot controller operates as a TELNET (socket) server, you can easily access the robot controller from
the TELNET terminal, such as a personal computer. (For details about how to install TELNET of the personal computer,
refer to the manual for relevant product.)
For details about other device, such as network setting on the personal computer, also refer to the manual for relevant
product. Furthermore, for details about robot programming, refer to the YRCX programming manual.
* Ethernet is a registered trademark of Xerox in the United States.
■
Communication mechanism
TCP/IP can identify each device uniquely by assigning the number unique to each device called "IP address" to each
device connected to the network.
Therefore, the connection process is performed first by specifying the IP address of a robot controller to be communicated
with, and then is disconnected after exchanging the data.
At this time, the controller operates as a server, monitors the connection request from the client (mating device, such as
personal computer), and performs the specified operation according to the request from the client.