GRAPHTEC GL840 - Page 140

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CHAPTER 3 Settings and Measurement
(4)-1 USB settings
Sets the USB ID number of GL840.
Specify a number from 0 to 9 (default value: 0).
To control more than one GL840 unit with one PC, assign a unique USB ID to each of them.
(4)-2 Wired LAN settings
This is the settings for connecting the GL840 to Ethernet unit.
Selection item Description
Auto IP Address Acquisition Set whether the IP address should be manually set or automatically acquired.
* If auto acquisition is enabled, the auto acquisition operation (performed when the power is
turned on or the settings are reected) may take a few seconds to around one minute.
IP Address Sets the IP address of the GL840. (0-255.0-255.0-255.0-255)
Subnet Mask Sets the subnet mask of the GL840. (0-255.0-255.0-255.0-255)
Port Number Sets the IP port number of the GL840 (1024-65535).
Gateway Sets the gateway address of the GL840. (0-255.0-255.0-255.0-255)
DNS Address Sets the DNS address of the GL840. (0-255.0-255.0-255.0-255)
Keep Alive Used to set the function to detect the non-communication time and automatically disconnect
the socket connection.
For details, refer to "Keep Alive".
Reect Settings Reects the TCP-IP settings immediately (without turning off and on the power).
* Connections are forcibly disconnected when the settings are reected.
* Reecting the settings may take a few seconds to around one minute.
•
If the Automatic IP Address Acquisition fails, the manual settings for IP address, etc. are used. In
this case, the settings including the IP address may not be consistent with your network. Disable the
Automatic IP Address Acquisition and make the settings one by one.
•
After you changed the Wired LAN settings, turn off and on the power or apply the settings. (The
connection will be forcibly disconnected).
•
When you want to use the Automatic IP Address Acquisition function, the DHCP server must be operating
separately within the searchable network.
Keep Alive
Detects no-communication time and automatically disconnects the socket connection.
Selection item Description
OFF Disconnection is not performed.
10 seconds to 1 hour Disconnects the socket connection if no-communication status continues longer than the
specied time. Generate some kind of communication within the setting time. Note that,
while the supplied application software is used, no-communication status continues during
the replay of captured data.
(This function is effective only for the command port. The Web server function or FTP server
function is not inuenced.)