Data collection apparatus, method, and program
AssigneeMitsubishi Electric Corporation
InventorsRyo KASHIWAGI, Osamu NASU
Life of this patent
Estimating the term…
Abstract
A collector (110) included in a data collection apparatus (100) performs data collection to collect data from a PLC (604, 605). A controller (150) included in the data collection apparatus (100) determines whether the collector (110) is valid depending on whether the collector (110) at a time when an instruction to start the data collection is provided matches the collector (110) at a preset time, and causes the collector (110) to start the data collection in response to the collector (110) being valid.
Claims13
A data collection apparatus comprising:
- a collector including a module of a program, the module being for implementing a function of performing data collection to collect data from a device;
- and
- a controller to determine that the collector is valid when a first error detection code calculated for the module at a preset time matches a second error detection code calculated for the module at a time when an instruction to start the data collection is provided, and to cause, upon determining that the collector is valid, the collector to start the data collection.
A method comprising:
- determining, for an execution file in a collection program for performing data collection to collect data from a device, whether the execution file is valid depending on whether a first error detection code calculated for the execution file at a preset time matches a second error detection code calculated for the execution file at a time when an instruction to start the data collection is provided;
- and
- executing the collection program in response to the execution file being valid.
A non-transitory recording medium storing a program for causing a computer to perform operations comprising:
- determining, for an execution file in a collection program for performing data collection to collect data from a device, whether the execution file is valid depending on whether a first error detection code calculated for the execution file at a preset time matches a second error detection code calculated for the execution file at a time when an instruction to start the data collection is provided;
- and
- executing the collection program in response to the execution file being valid.
Dependencies are inferred from the claim text.