CV500ETN01 Omron, CV500ETN01 Datasheet - Page 43
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CV500ETN01
Manufacturer Part Number
CV500ETN01
Description
Programmable Logic Controller
Manufacturer
Omron
Datasheet
1.CV500ETN01.pdf
(285 pages)
Specifications of CV500ETN01
Peak Reflow Compatible (260 C)
No
Leaded Process Compatible
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Overview of Communications Functions
Upgraded Functions
1-5-2
Manipulating Dedicated
Control Bits
18
Socket Services
Note
Executing, from the host computer, FINS commands with UDP/IP or TCP/IP
headers enables various control operations, such as the reading and writing
of I/O memory between PLCs, mode changes, and file memory operations.
For example, it is possible to connect online via Ethernet from FINS communi-
cations applications such as the CX-Programmer, and to perform remote pro-
gramming and monitoring. (See note.)
Use CX-Programmer version 4.0 to use TCP/IP. For lower versions of CX-Pro-
grammer, FinsGateway Version 2003 or higher is required to use TCP/IP.
The FINS gateway function enables access to PLCs on not only the same
Ethernet network but on various other networks, including SYSMAC LINK and
Controller Link.
With the CS1W-ETN21 and CJ1W-ETN21, the following functions have been
upgraded.
The socket services allow devices on the Ethernet to send and receive vari-
ous data using either the UDP or TCP protocol.
One way to use socket services is to set the required parameters in the
parameter area allocated in the DM Area, and then to request particular UDP
or TCP socket services by turning ON dedicated control bits in memory. When
the Ethernet Unit has completed the requested process, the same bit is
turned OFF to provide notification. Data that is sent or received is automati-
cally handled according to the I/O memory locations specified in the parame-
ter area.
There is no need to execute the CMND(490) instruction or to monitor the com-
pletion timing and actual processing of the instruction, so this helps to simplify
ladder programming.
• The FINS communications service can be executed not only with UDP/IP
• Even if the IP address and UDP port number of the host computer (a
• Multiple FINS applications (CX-Programmer and user-created application
but also with TCP/IP, and it is even possible to use FINS communications
with both UDP/IP and TCP/IP together on the same network. Using TCP/
IP makes FINS communications highly reliable.
DHCP client computer) are changed, it is still possible for the host com-
puter to send FINS commands to PLCs on the Ethernet network and to
receive responses. When UDP is used, either the automatic generation
(dynamic) method or the IP address table method must be selected for IP
address conversion. When TCP is used, changes in IP address and TCP
port numbers are handled automatically.
programs) at the same computer can be connected online to a PLC via
Ethernet (using either TCP/IP or UDP/IP).
CS/CJ-series
CPU Unit
IP
UDP or TCP
Ethernet Unit
FINS
Ethernet
Section 1-5
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