Patent ID: 8384512
Filing Date: 2013-02-26
Classification: G01D

Abstract:
1. A detection sensor configured to operate in a master mode or a slave mode, the detection sensor comprising: a detection unit configured to detect a physical value change in a detection area; an output circuit configured to output an output signal related to the physical value change detected by the detection unit; an external connecting terminal configured to be electrically connected to a connecting terminal of an external device in the master triode and a connecting terminal of a setting information output device in the slave mode, the external connecting terminal being connected to the output circuit to transmit the output signal from the output circuit an input circuit configured to connect to the external connecting terminal to receive first setting information from the setting information output device; a memory configured to store the first setting information and a second setting information related to operation of the detection unit; a switch configured to enable and disable the output circuit and the input circuit; a mode selector configured to switch the detection sensor between the master mode and the slave mode; and a control unit configured to: receive a detection signal related to the physical value change from the detection unit; control the switch to enable the output circuit to output the second setting information to the external device in the master mode; control the switch to enable the input circuit to receive the first setting information from the setting information output device in the slave mode; and store the received first setting information in the memory.