Control system
AssigneeOMRON Corporation
InventorsYoshihide Nishiyama, Yasuhiro Nishimura, Shigeyuki Eguchi, Katsuhiko Azuma
Life of this patent
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Abstract
A control system for factory automation includes a first unit and a second unit each including a timer, a data line over which data containing a timer value indicated by the timer is exchanged between the first unit and the second unit, a signal line that electrically connects the first unit and the second unit, and an adjustment module connected to the signal line and the data line. The adjustment module acquires, when receiving a trigger signal over the signal line, the timer value over the data line and matches the timer of the second unit with the timer of the first unit based on the timer value acquired.
Claims10
A control system for factory automation, the control system comprising:
- a first unit and a second unit each including a timer;
- a data line over which data containing a timer value indicated by the timer is exchanged between the first unit and the second unit;
- a signal line configured to electrically connect the first unit and the second unit;
- and
- an adjustment module connected to the signal line and the data line,
- wherein the first unit includes a signal port configured to connect to the signal line, and the second unit includes a signal port configured to connect to the signal line,
- wherein the first unit includes a data communication circuit configured to connect to the data line, and the second unit includes a local bus controller configured to connect to the data line,
- wherein the adjustment module acquires, when receiving a trigger signal over the signal line, the timer value over the data line and matches the timer of the second unit with the timer of the first unit based on the timer value acquired, and
- wherein the adjustment module matches the timer of the second unit with the timer of the first unit by dividing an adjustment value into a plurality of adjustment values, and adding each of the plurality of adjustment values to the timer value periodically and cumulatively.
Dependencies are inferred from the claim text.