Yokogawa Removable Chassis DX1000N - Manual (Page 18)

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IM 04L41B01-17E
SNTP Server/Client
The client function retrieves time information from a specified SNTP server such as at the
specified interval.
The server function provides time information to DXs connected to the same network.
DHCP Client
This function can be used to automatically retrieve IP addresses from a DHCP server.
You can also manually request or release network information.
EtherNet/IP Server (Release number 3 or later)
The DX supports the following features.
• Loads data for measurement, computed, and external input channels.
• Writes to communication input data and external input channels.
For operating instructions, see the EtherNet/IP Communication Interface User’s Manual
(IM04L41B01-18E).
Other Functions
Checking the connection status of the Ethernet interface
You can check the connection status of the Ethernet interface on the rear panel or on the
display of the DX.
For a description on the location and meaning of the connection status indicator, see
section 1.3.
Keepalive (extension function of TCP)
This function drops the connection if there is no response to the inspection packet that is
periodically transmitted at the TCP level.
For a description of the settings required to use this function, see section 1.3.
Log display
You can display operation logs on the log display. The log can also be confirmed using
a communication command. In addition, the Web screen can show the log display
(excluding the communication log and DHCP log).
• Error log screen: Log of operation errors
• Communication log screen: Log of communication input/output to the setting
measurement server
• FTP log screen : Log of file transfers carried out using the FTP client
function.
• WEB log screen : Log of operations using the Web server function
• Mail log screen : Log of E-mail transmissions
• Login log screen *1 : Log of login, logout, items related to time adjustment,
and calibration management operations.
• SNTP log screen : Log of access to the SNTP server
• DHCP log screen : Log of access to the DHCP server
• Modbus log screen : Log of Modbus status (access to the master or client)
• Operation log screen *2 : Log of operations
• Change settings log screen *2 : Log of setting changes
*1 Only on DXs without the /AS1 advanced security option
*2 Only on DXs with the /AS1 advanced security option
For the operating procedure of the log screen and the details on the displayed contents,
see the DX1000/DX1000N or DX2000 User’s Manual (IM04L41B01-01E or IM04L42B01-
01E). For details on the Modbus status log, see section 1.10.
For details on the log output using communication commands, see section 4.2. For a
description of the log display on the Web screen, see section 1.5.
1.1 DX Features