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IM 04L57B01-01EN
Overview and Functions
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App
1.1 Overview
1.1.1
GX70SM Wireless Input Unit
The GX70SM is a compact, battery-driven analog input unit that uses 920 MHz specified low
power radio. Because it is battery-driven, it can collect data in a variety of locations.
It connects to a S GX20, GP20, or GM10 coordinator over a multi-hop wireless
link, and allows data collection and status display of the GX70SM on the GX20/GP20/GM10.
If you turn off the wireless function, you can use the GX70SM as a standalone data logger
and collect data. This will extend the battery life.
GX20/GP20/GM10 (coordinator)
GX70SM
Wireless network (PAN)
GX70SM
Max. 96 devices*
GX70SM
* Four repeaters are required.
Features
● 2 channels of universal inputs, 1 channel of humidity measurement (option)
● The universal input allows thermocouples, RTDs, DC voltages, analog standard signals,
and digital inputs to be configured freely. Input calibration is also possible.
● Measurement is possible at a high speed of 1-second intervals.
● The level of wireless (radio level) can be confirmed.
● A given period of logging data (4500 points) are stored.
● Wireless terminal authentication function blocks unauthorized access. In addition,
communication encryption prevents tampering and wiretapping.
● The battery life is 5 years when the scan interval is set to 5 minutes (standard operating
conditions,
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standard mode). Power can also be supplied through the USB port.
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1 For the standard operating conditions, see the GX70SM Wireless Input Unit General
Specifications (GS 04L57B01-01EN).
2 When supplying power through USB, use a USB cable that meets the product specifications.
Otherwise, wireless communication and measuring accuracy may be affected.
● Extensive self-diagnostics function is available. Device errors, such as drop in the battery
voltage and errors in the input, can be detected.
● Wireless Input Unit Configurator (software application) can be used to configure and
perform maintenance on the GX70SM. In addition, GX70SM logging data can be inserted
into sections where data could not be acquired within a GX20/GP20/GM10 event data file
due to errors in communication with the GX70SM.
Maximum Number of Connections*
Model
Measurement mode (GX/GP/GM)
Normal
High speed
Dual interval
GX20-1/GP20-1/GM10-1
50
30
GX20-2/GP20-2/GM10-2
96
50
* The number of technically possible connections varies depending on the wireless environment
condition and the measurement/transmission interval.
Chapter 1 Overview and Functions
Summary of Contents for GX70SM
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