Abstract: The present disclosure provides a device for controlling a position based on a programmable logic controller (PLC), the device comprising: a motor driving module; an input module; and a control module, wherein the control module includes: a profile creation unit configured for creating the position profile based on the position command when a first position calculation interrupt is generated in a first position control period; a pulse calculation unit configured for calculating a number of outputs of the driving pulse to be output in a second position control period following the first position control period based on the position profile; and a driving controller configured for outputting the driving pulse having the number of outputs calculated by the pulse calculation unit to the motor driving module when a second position calculation interrupt notifying a start time-point of the second position control period is generated.

Abstract: The present disclosure provides a device for controlling a position based on a programmable logic controller (PLC), the device comprising: a motor driving module; an input module; and a control module, wherein the control module includes: a profile creation unit configured for creating the position profile based on the position command when a first position calculation interrupt is generated in a first position control period; a pulse calculation unit configured for calculating a number of outputs of the driving pulse to be output in a second position control period following the first position control period based on the position profile; and a driving controller configured for outputting the driving pulse having the number of outputs calculated by the pulse calculation unit to the motor driving module when a second position calculation interrupt notifying a start time-point of the second position control period is generated.

Abstract: Disclosed is an input module of a programmable logic controller (PLC) capable of counting coefficient values of multiple channels. An input module of a PLC includes a plurality of detection units, a decision unit and a control unit. The plurality of detection units receives a pulse signal corresponding to each channel, applied from a load having a plurality of channels, detects rising and falling edges of the pulse signal, and transmits an output signal that is the detected result. The decision unit receives a plurality of output signals respectively transmitted from the plurality of detection units, detects edges of the plurality of channels, and transmits a detection signal that is the detected result. The control unit identifies the presence of occurrence of an interrupt using the detection signal transmitted from the decision unit and performs a counting process using the applied pulse signal when the interrupt occurs.

Abstract: Disclosed is an input module of a programmable logic controller (PLC) capable of counting coefficient values of multiple channels. An input module of a PLC includes a plurality of detection units, a decision unit and a control unit. The plurality of detection units receives a pulse signal corresponding to each channel, applied from a load having a plurality of channels, detects rising and falling edges of the pulse signal, and transmits an output signal that is the detected result. The decision unit receives a plurality of output signals respectively transmitted from the plurality of detection units, detects edges of the plurality of channels, and transmits a detection signal that is the detected result. The control unit identifies the presence of occurrence of an interrupt using the detection signal transmitted from the decision unit and performs a counting process using the applied pulse signal when the interrupt occurs.