MASTER DEVICE, ARITHMETIC PROCESSING DEVICE, PROGRAMMABLE LOGIC CONTROLLER, NETWORK, AND INFORMATION PROCESSING METHOD
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United States of America Patent
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Issued Date -
May 26, 2022
app pub date -
Feb 10, 2020
filing date -
Feb 10, 2020
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Abstract
A master device manages a plurality of slave devices constituting a network including a ring topology. The plurality of slave devices includes: a first slave device serving as a starting point and a terminal point of the ring topology; and a plurality of second slave devices connected between a first output port of the first slave device and a second output port thereof and constituting the ring topology. On the basis of a network configuration detected when the second output port and the output port of a second slave device paired with the second output port are available and of a network configuration detected when the second output port and the output port paired therewith have been made unavailable, the master device determines an incorrect wiring path between the first output port and the second output port and outputs information indicating the incorrect wiring path to an information processing device.
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