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CHAPTER 3 Settings and Measurement
Remote terminal (GLT400: option) settings
The remote terminal (GLT400: option) as a remote unit can be connected to the GL840 (base unit). The
connection method is as follows.
1. Wired LAN connection: The GLT400 can be connected as a remote unit by connecting the GL840 and
GLT400 with a crossover LAN cable or by connecting with a LAN cable via a network hub.
2. Wireless LAN connection: The GLT400 can be connected as a remote unit by installing the optional
wireless LAN unit (B-568) to each of the GL840 and GLT400. For wireless LAN connection, the number of
units that can be mix-connected is up to 5 including the wireless sensors (GL100).
For wireless LAN setting methods, refer to "3.4 Setting Menus" - "(4) Interface settings".
For remote terminal (GLT400) setting method, refer to the GLT400 User’s Manual.
If you switch the display with the "CH GROUP" key and the CH display is "RT", the remote terminal screen
is displayed. The remote terminal settings are the same as the GL840 AMP settings, so refer to "3.4 Setting
Menus" - "(1) AMP setting" for the setting method.
CH display
• RT display: Displayed when a remote terminal is connected.
Remote terminal connection display
AMP setting screen
If the network connection of the remote terminal is unstable, data capturing may not be performed
correctly, so use it in a stable communication environment.
Because the data capturing of the GL840 and the data capturing of the remote terminal may be delayed,
you should consider the data delay.
The logic/pulse input of the remote terminal (GLT400) is not available.
The alarm output of the remote terminal (GLT400) can be set for Alarm 1 only. In addition, a delay of several
seconds from 500 ms may occur.
When the remote terminal (GLT400) is connected and the sampling interval is set to faster than 500 ms, the
waveform display of the remote terminal is thinned out to 500 ms at the shortest.
When the remote terminal (GLT400) is connected and the sampling interval is set faster than 500ms, the
waveform display of the remote terminal is thinned out to 500 ms. When the level trigger is set by the
signal of the remote terminal (GLT400), the trigger is detected at the fastest interval of 500 ms.
A large deviation may occur when the sampling interval is slow, because the timing of the sampling
interval is different between the GL840 and the remote terminal (GLT400).
If communication delay or disconnection to the remote terminal (GLT400) occurs due to the communication
environment, the reconnect will be tried. Therefore, the sampling timing after reconnection may be shifted
from the previous one.
For the connection settings between the GL840 and the remote terminal (GLT400), refer to "3.4 Setting
Menus" - "(4) Interface settings" and the example of the operation procedure.
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