PLC device and industrial machine system
AssigneeFanuc Corporation
InventorYaoki Takashima
Life of this patent
Estimating the term…
Abstract
In order to output a given text string from a ladder program that has been analyzed, this PLC device is provided with a text data output unit for reading text data from a storage device, a display unit for outputting the given prescribed text string to a display device, and a communication unit for carrying out text communication with a network server by means of a prescribed command. In addition, the text data output unit is able to implement general-purpose protocol communication (HTTP communication) with a PLC program by determining, on the basis of a keyword included in the text data, whether the text data is to be output to the display unit or the communication unit, and outputting the text data to the display unit or the communication unit, on the basis of the determination result.
Claims5
A programmable logic controller (PLC) device, comprising:
- a controller configured to execute separate programs stored in a storage device to perform the following functions:
- text data output functionality, including:
- reading text data from a storage device;
- outputting a character string included in an analyzed ladder program;
- determining, based on the content of the text data:
- that the text data includes a message data display command if the text data does not include a predetermined keyword;
- and
- that the text data includes a text communication command if the text data includes the predetermined keyword;
- and
- switching the output destination of the text data based on the determination:
- outputting the text data to a display device if the text data does not include the predetermined keyword;
- and
- outputting the text data to a communication interface if the text data includes the predetermined keyword;
- a display device configured to present character strings output by the controller;
- and
- a communication interface configured to transmit text data to a network server using a predetermined command.
Dependencies are inferred from the claim text.