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Program and implementfor a PLC the time-delay, counting and memorisation functions of a GRAFCET (Schneider)
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1. Presentation of the equipment
This equipment, managed by a programmable logic controller (PLC), simulates the operation
of a building lift model serving five levels. It is used to understand the programming and
implementation of a PLC and to study the various functions of a grafcet.
The elevator is made up of an operative part and of a control part mounted on a support
equipped with cables for connection to the operative part.
1.1 Composition
„ The operative part represents a five-level elevator model equipped with:
− Call pushbuttons (on the landings and in the cabin)
− Door closure detectors
− Cabin position sensors
− Limit switch sensors
− A display
− An emergency stop button
„ The control part consists of a PLC (TSX Micro or TSX Twido according to option)
containing the module operating program.
...
1. Presentation of the equipment
This equipment, managed by a programmable logic controller (PLC), simulates the operation
of a building lift model serving five levels. It is used to understand the programming and
implementation of a PLC and to study the various functions of a grafcet.
The elevator is made up of an operative part and of a control part mounted on a support
equipped with cables for connection to the operative part.
1.1 Composition
„ The operative part represents a five-level elevator model equipped with:
− Call pushbuttons (on the landings and in the cabin)
− Door closure detectors
− Cabin position sensors
− Limit switch sensors
− A display
− An emergency stop button
„ The control part consists of a PLC (TSX Micro or TSX Twido according to option)
containing the module operating program.
...
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