Overview And Features; Overview - Omron A2W-R**-WC1 Series User Manual

2 Overview

2-1

Overview and Features

This section describes the overview and features of the wireless pushbutton switches system.
2-1-1

Overview

The wireless pushbutton switches system consists of A2W-R-WC1 Master Units and
A2W-T-WC1 Wireless Pushbutton Switches. At the push button switches side, it has no wiring (i.e.,
wireless) and no power supply. The operation signal of the Wireless Pushbutton Switches is transmitted
to the Master Unit, and transistor output is made from the Master Unit.
This system can reduce disconnection troubles occurring in the equipment using existing wired
switches and can reduce time and expense when changing the layout.
Reliability is improved by wireless communications functions such as sub GHz band, master-slave
communications, and reception confirmation LEDs.
Hereafter, the A2W-T-WC1 Wireless Push Button will be called "Slave button" in comparison with the
"Master Unit".
Overview of the System Configurations
The Overview of the wireless pushbutton switches system is shown below.
Pressing the Wireless Pushbutton Switch will be generated self-generated power. Using the power, the
operation signal is transmitted wirelessly to the Master Unit. Receiving the operation signal, the Master
Unit returns the reception confirmation signal to the Wireless Pushbutton Switches by radio and outputs
a one shot (i.e., 500 ms) transistor output to the external devices such as PLCs.
External devices such as PLCs output signals from the Master Unit to the Display board and program-
mable terminal (PT), etc.
A2W-R
Wireless communications
2 - 2
-WC1 Master Unit
A2W-T -WC1 Slave button
(Up to 8 buttons)
Display board or PT, etc.
PLC, etc.
Transistor output
Up to 8 points
The Slave button transmits an operation
signal to the Master Unit, and the
Master Unit responds a reception
confirmation signal to the Slave button.
Wireless Pushbutton Switch User's Manual (A265)