Omron SYSMAC CP2E-E D Series User Manual

15 Ethernet
15-6
CP2E CPU Unit Software User’s Manual(W614)
The standard Ethernet protocols, UDP/IP and TCP/IP, are supported, making it possible to communi-
cate with a wide range of devices, workstations, computers, and Ethernet Units from other manufactur-
ers.
Up to three ports can be used for various protocols, enabling the use of various applications.
The socket services function for TCP or UDP can be simplified by presetting parameters and using ded-
icated bits. In addition, the size of received data accumulated in the reception buffer is now stored, and
a Data Received Flag has been added. These features eliminate the need for ladder programs to mon-
itor the timing for completion of socket service processing, and thus reduce the amount of labor
required for program development.
Use the automatic clock adjustment function.
With the automatic clock adjustment function, the SNTP server’s clock is taken as the standard for auto-
matically adjusting the built-in clock of the PLC. The adjustment can be regularly executed at a speci-
fied time (once a day) and it can be executed each time by the ladder program.
To use the automatic clock adjustment function, there must be a separate SNTP server on the network.
Aside from the IP address, the host name used for DNS service can be specified for the SNTP server.
In addition to directly specifying the IP address for a SNTP server, it is also possible (by means of the
PLC’s DNS client function) to specify the server by host name. This enables automatic searches for IP
addresses for purposes such as system checking, even when the IP addresses for servers have been
changed.
Note A separate DNS server is required to specify servers by host name using DNS.
15-1-3 Creating an Original Communications Procedure Using TCP/IP
(UDP/IP) for the Host Application or Communicating with PLCs
from Another Manufacturer
Communications by UDP/IP and TCP/IP (Socket Services Function)
Simplified Socket Services
15-1-4 Automatically Adjusting the PLC’s Internal Clock at Regular
Intervals
Operation
Specification of Servers by Host Name

Omron SYSMAC CP2E-E D Series Specifications

General

Brand	Omron
Model	SYSMAC CP2E-E D Series
Category	Computer Hardware
Language	English