Abstract: A data control apparatus includes an analog signal input interface for receiving an analog signal from a first device, a communication interface for receiving correlation information indicating addresses of storage areas in a storage and conditional values associated with the storage areas, and a data controller for writing a digital value generated from the analog signal into one of the storage areas. The data controller includes a cam switch block for acquiring a reference signal generated from an input signal input from a second device and comparing a value of the reference signal with at least one of the conditional values, and a logger block for switching the storage area into which the digital value is written, on the basis of the comparison in the cam switch block, and writing the digital value into the storage area.

Abstract: A functional unit is synchronized with an output system unit on the basis of a trigger signal input from outside with a synchronization period. The input system unit includes: a functional processing unit to perform, on the basis of the trigger signal, a functional process with a control period that is shorter than the synchronization period, and to generate processing results by repeatedly performing the functional process in one synchronization period; and a shared memory to collectively output the processing results of the functional processing unit to outside on the basis of the trigger signal.

Abstract: A data control apparatus includes an analog signal input interface for receiving an analog signal from a first device, a communication interface for receiving correlation information indicating addresses of storage areas in a storage and conditional values associated with the storage areas, and a data controller for writing a digital value generated from the analog signal into one of the storage areas. The data controller includes a cam switch block for acquiring a reference signal generated from an input signal input from a second device and comparing a value of the reference signal with at least one of the conditional values, and a logger block for switching the storage area into which the digital value is written, on the basis of the comparison in the cam switch block, and writing the digital value into the storage area.

Abstract: An input/output control unit (120) includes a storage, an input/output controller (126), an analog signal input interface (129), and a pulse signal input interface (127A). The input/output controller (126) includes a pulse signal input block (1411) to generate a trigger signal, an A/D conversion block (1431) to generate wafer thickness information by analog-to-digital conversion of an analog signal, a logger block (1501) to, in synchronization with the trigger signal, store the wafer thickness information a preset table A in the storage, a counter block (1461) to continuously generate, from the digital signal, count value information indicating a count value and output the generated information, and a logger block (1502) to, in synchronization with the trigger information, store the count value information, in association with the wafer thickness information, in a table TB in the storage (124).

Abstract: An input/output control unit (120) includes a storage, an input/output controller (126), an analog signal input interface (129), and a pulse signal input interface (127A). The input/output controller (126) includes a pulse signal input block (1411) to generate a trigger signal, an A/D conversion block (1431) to generate wafer thickness information by analog-to-digital conversion of an analog signal, a logger block (1501) to, in synchronization with the trigger signal, store the wafer thickness information a preset table A in the storage, a counter block (1461) to continuously generate, from the digital signal, count value information indicating a count value and output the generated information, and a logger block (1502) to, in synchronization with the trigger information, store the count value information, in association with the wafer thickness information, in a table TB in the storage (124).

Abstract: A functional unit is synchronized with an output system unit on the basis of a trigger signal input from outside with a synchronization period. The input system unit includes: a functional processing unit to perform, on the basis of the trigger signal, a functional process with a control period that is shorter than the synchronization period, and to generate processing results by repeatedly performing the functional process in one synchronization period; and a shared memory to collectively output the processing results of the functional processing unit to outside on the basis of the trigger signal.

Abstract: A functional unit is synchronized with an output system unit on the basis of a trigger signal input from outside with a synchronization period. The input system unit includes: a functional processing unit to perform, on the basis of the trigger signal, a functional process with a control period that is shorter than the synchronization period, and to generate processing results by repeatedly performing the functional process in one synchronization period; and a shared memory to collectively output the processing results of the functional processing unit to outside on the basis of the trigger signal.

Abstract: A functional unit is synchronized with an output system unit on the basis of a trigger signal input from outside with a synchronization period. The input system unit includes: a functional processing unit to perform, on the basis of the trigger signal, a functional process with a control period that is shorter than the synchronization period, and to generate processing results by repeatedly performing the functional process in one synchronization period; and a shared memory to collectively output the processing results of the functional processing unit to outside on the basis of the trigger signal.

Abstract: A PLC system includes a programmable logic controller including a PLC unit and a storing unit and an arithmetic-expression-data-creation supporting apparatus causing the PLC unit to create arithmetic expression data of an arithmetic expression to be executed by the PLC unit, and the arithmetic-expression-data-creation supporting apparatus includes an input unit to receive, from a user, the arithmetic expression including input information serving as a variable used in an arithmetic operation and a constant used in the operation and an arithmetic-expression processing unit to obtain a calculation sequence of the expression, and the storing unit retains an arithmetic-expression-data table for managing the arithmetic expression data including the input information, the constant and the calculation sequence, and the PLC unit includes an operation unit connected to the storing unit, to execute an arithmetic operation of the arithmetic expression according to the calculation sequence using the input information and

Abstract: An analog input unit as an analog unit attached to a PLC includes an A/D converting unit as a first converting unit performing conversion between an analog value and a digital value according to a first conversion characteristic, a shared memory as a retaining unit retaining a conversion characteristic table indicating a second conversion characteristic of conversion between digital values, and a conversion processing unit as a second converting unit converting a digital value according to the second conversion characteristic by referring to the conversion characteristic table. The conversion characteristic table includes combinations of a first value that is a digital value and a second value that is a conversion result of the first value, the number of which corresponds to resolution of a digital value in the analog unit, and the second value of each of the combinations of the first value and the second value can be adjusted.

Abstract: A PLC system includes a programmable logic controller including a PLC unit and a storing unit and an arithmetic-expression-data-creation supporting apparatus causing the PLC unit to create arithmetic expression data of an arithmetic expression to be executed by the PLC unit, and the arithmetic-expression-data-creation supporting apparatus includes an input unit to receive, from a user, the arithmetic expression including input information serving as a variable used in an arithmetic operation and a constant used in the operation and an arithmetic-expression processing unit to obtain a calculation sequence of the expression, and the storing unit retains an arithmetic-expression-data table for managing the arithmetic expression data including the input information, the constant and the calculation sequence, and the PLC unit includes an operation unit connected to the storing unit, to execute an arithmetic operation of the arithmetic expression according to the calculation sequence using the input information and

Abstract: An analog input unit as an analog unit attached to a PLC includes an A/D converting unit as a first converting unit performing conversion between an analog value and a digital value according to a first conversion characteristic, a shared memory as a retaining unit retaining a conversion characteristic table indicating a second conversion characteristic of conversion between digital values, and a conversion processing unit as a second converting unit converting a digital value according to the second conversion characteristic by referring to the conversion characteristic table. The conversion characteristic table includes combinations of a first value that is a digital value and a second value that is a conversion result of the first value, the number of which corresponds to resolution of a digital value in the analog unit, and the second value of each of the combinations of the first value and the second value can be adjusted.

Abstract: A D/A conversion device includes a waveform-data-string storage area that stores therein a waveform data string including a plurality of digital values, a waveform-output-control-data storage area in which operation-mode specifying data and update request data are written, a digital-value output unit that, when the operation-mode specifying data specifies an automatic control mode, while sequentially updating an address to be read in the waveform-data-string storage area for each output period set in advance, sequentially reads and outputs a digital value and that, when the operation-mode specifying data specifies a step execution mode or an output-address change mode, while updating the address to be read at a timing when the update request data is written, reads and outputs the digital value, and a D/A conversion unit that converts the digital value output from the digital-value output unit into an analog value.

Abstract: An analog input unit configured to be included in a programmable controller and to sequentially convert analog values input from outside into digital values, the analog input unit includes: an analog-to-digital conversion unit that converts an analog value being a measurement value of a flow meter into a digital value; a flow computation unit that calculates an instantaneous flow and a total integrated flow that is obtained by integrating a flow per setting time set in advance, based on the digital value from the analog-to-digital conversion unit; and a storage unit that includes a flow storage area for storing therein the instantaneous flow and the total integrated flow calculated by the flow computation unit.

Abstract: A D/A conversion device includes a waveform-data-string storage area that stores therein a waveform data string including a plurality of digital values, a waveform-output-control-data storage area in which operation-mode specifying data and update request data are written, a digital-value output unit that, when the operation-mode specifying data specifies an automatic control mode, while sequentially updating an address to be read in the waveform-data-string storage area for each output period set in advance, sequentially reads and outputs a digital value and that, when the operation-mode specifying data specifies a step execution mode or an output-address change mode, while updating the address to be read at a timing when the update request data is written, reads and outputs the digital value, and a D/A conversion unit that converts the digital value output from the digital-value output unit into an analog value.

Abstract: An A/D converter that is attached to a programmable controller (PLC) and sequentially converts an analog value inputted from outside into a digital value. The A/D converter includes: a shared memory that can read-access from a CPU unit that controls the entire PLC and includes a log storage area with a ring buffer configuration for sequentially logging the digital value and a parameter storage area for storing a head pointer serving as a parameter indicating a position where a next log data is stored; and a logging executing unit that writes a digital value in an address indicated by the head pointer in the log storage area as log data and updates the head pointer.

Abstract: An A/D converter that is attached to a programmable controller (PLC) and sequentially converts an analog value inputted from outside into a digital value. The A/D converter includes: a shared memory that can read-access from a CPU unit that controls the entire PLC and includes a log storage area with a ring buffer configuration for sequentially logging the digital value and a parameter storage area for storing a head pointer serving as a parameter indicating a position where a next log data is stored; and a logging executing unit that writes a digital value in an address indicated by the head pointer in the log storage area as log data and updates the head pointer.