Omron CS1W-ETN21 Automatic PLC Internal Clock Adjustment, Specification of Servers by Host Name

Features Section 1-2

•In addition to using the existing Mail Send Switch, or having e-mail sent at regular intervals, it is possible to set triggers for sending e-mail (for exam- ple, by having e-mail sent when a PV in the CPU Unit's I/O memory reaches a certain value (size comparison), or when the bit at a specified address turns ON).

•Up to eight of these e-mail send conditions (destination, trigger type, etc.) can be preregistered so that e-mail will be sent automatically whenever the conditions are met.

Note The e-mail functions require a separate mail server (SMTP/POP3).

Automatic PLC Internal Clock Adjustment

The built-in clock of the PLC connected to the Ethernet can be automatically adjusted, with the SNTP server clock taken as the standard. Automatic adjust- ments through the entire system enable the various records generated by pro- duction equipment to be managed according to clock information and analyzed.

Note The automatic clock adjustment requires a separate SNTP server.

Specification of Servers by Host Name

In addition to directly specifying the IP address for a SMTP, POP3, or SNTP server, it is also possible (by means of the Ethernet Unit'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 (1) A separate DNS server is required to specify servers by host name using DNS.

(2) The IP address is specified directly for the DNS server.

Use Web Function to Read Ethernet Unit Settings and Status

A Web function is provided in Ethernet Units with Unit Ver. 1.3 or later. This enables use of a Web browser to read the Ethernet Unit’s system settings and statuses.

Network Connection with Controller Link

The Ethernet information network can be connected to the Controller Link control system network by using the FINS communications service function. This enables a PLC on a Controller Link network to be monitored from a PLC on an Ethernet network, and it allows data to be exchanged between them.

Full Range of Functions for Handling Troubles

A full range of functions is provided for promptly handling any troubles that may arise.

•Self-diagnostic function when power is turned ON

•Remote node connection check by PING command

•Remote node connection check by internode test

•Error log for recording error information when an error occurs

•Notification by e-mail when an error occurs

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