Ladder diagram program generation assistance device, ladder diagram program generation assistance method, and recording medium

A ladder diagram program generation assistance device comprising:

• an input interface, receiving an input related to generation and editing of a ladder diagram program;
• a processor, when the input interface receives a variable name of function blocks related to a ladder circuit to be inserted into the ladder diagram program generated and edited at a time, searching for a ladder circuit that has a variable name which is the same as the variable name input at the input interface and repeatedly appeared for a predetermined number of times or more in a search range of the ladder diagram program, and extracting the searched ladder circuit as and extracting a partial circuit, wherein a search range in which the processor searches for the partial circuit is a range from a first row at beginning of the ladder diagram program to a row in which the function block-with presently input variable name is to be added;
• a display, displaying, the partial circuit extracted by the processor as a candidate ladder circuit corresponding to the received variable name;
• and
• wherein when a selection of the input candidate displayed on the display is received, the processor is further configured to replace, with the selected input candidate, the ladder circuit of which the variable name has been input by the input interface, and
• when the circuit and other ladder circuits connected to the function blocks are common between the searched ladder circuit, the processor further extracts a circuit formed by the searched ladder circuit and the other ladder circuits as the partial circuit.

A ladder diagram program generation assistance method, causing a computer to perform:

• a partial circuit search step of when an input interface receiving an input related to generation and editing of a ladder diagram program receives a command name of function blocks related to a ladder circuit to be inserted into the ladder diagram program generated and edited at a time, searching for a ladder circuit that has a command name which is the same as the command name input at the input interface and repeatedly appeared for a predetermined number of times or more in a search range of the ladder diagram program, and extracting the searched ladder circuit as a partial circuit, wherein a search range in which the partial circuit search step searches for the partial circuit is a range from a first row at beginning of the ladder diagram program to a row in which the function block with presently input command name is to be added;
• a display step of displaying the partial circuit extracted in the partial circuit search step as a candidate ladder circuit corresponding to the received command name;
• and
• a replacement step of when a selection of the input candidate displayed by the display step is received, replacing, with the selected input candidate, the ladder circuit of which the command name has been input by the input interface,
• wherein when the circuit and other ladder circuits connected to the function blocks are common between the searched ladder circuit, the processor further extracts a circuit formed by the searched ladder circuit and the other ladder circuits as the partial circuit.

A ladder diagram program generation assistance method, causing a computer to perform:

• a partial circuit search step of when an input interface receiving an input related to generation and editing of a ladder diagram program receives a variable name of function blocks related to a ladder circuit to be inserted into the ladder diagram program generated and edited at a time, searching for a ladder circuit that has a variable name which is the same as the variable name input at the input interface and repeatedly appeared for a predetermined number of times or more in a search range of the ladder diagram program, and extracting the searched ladder circuit as a partial circuit, wherein a search range in which the partial circuit search step searches for the partial circuit is a range from a first row at beginning of the ladder diagram program to a row in which the function block with presently input variable name is to be added;
• a display step of displaying an input candidate corresponding to the partial circuit extracted in the partial circuit search step;
• and
• a replacement step of when a selection of the input candidate displayed by the display step is received, replacing, with the selected input candidate, the ladder circuit of which the variable name has been input by the input unit interface,
• when the circuit and other ladder circuits connected to the function blocks are common between the searched ladder circuit, the processor further extracts a circuit formed by the searched ladder circuit and the other ladder circuits as the partial circuit.

A non-transitory computer readable recording medium that stores a ladder diagram program generation assistance program, the ladder diagram program generation assistance program causing a computer to perform:

• a partial circuit search step of when an interface receiving an input related to generation and editing of a ladder diagram program receives a command name of function blocks related to a ladder circuit to be inserted into the ladder diagram program generated and edited at a time, searching for a ladder circuit that has a command name which is the same as the command name input at the input interface and repeatedly appeared for a predetermined number of times or more in a search range of the ladder diagram program, and extracting the searched ladder circuit as a partial circuit, wherein a search range in which the partial circuit search step searches for the partial circuit is a range from a first row at beginning of the ladder diagram program to a row in which the function block with presently input command name is to be added;
• a display step of displaying the partial circuit extracted in the partial circuit search step as a candidate ladder circuit corresponding to the received command name;
• and
• a replacement step of when a selection of the input candidate displayed by the display step is received, replacing, with the selected input candidate, the ladder circuit of which the command name has been input by the interface,
• when the circuit and other ladder circuits connected to the function blocks are common between the searched ladder circuit, the processor further extracts a circuit formed by the searched ladder circuit and the other ladder circuits as the partial circuit.

A non-transitory computer readable recording medium that stores a ladder diagram program generation assistance program, the ladder diagram program generation assistance program causing a computer to perform:

• a partial circuit search step of when an input interface receiving an input related to generation and editing of a ladder diagram program receives a variable name of function blocks related to a ladder circuit to be inserted into the ladder diagram program generated and edited at a time, searching for a ladder circuit that has a variable name which is the same as the variable name input at the input interface and repeatedly appeared for a predetermined number of times or more in a search range of the ladder diagram program, and extracting the searched ladder circuit as a partial circuit, wherein a search range in which the partial circuit search step searches for the partial circuit is a range from a first row at beginning of the ladder diagram program to a row in which the function block with presently input variable name is to be added;
• a display step of displaying the partial circuit extracted in the partial circuit search step as a candidate ladder circuit corresponding to the received command name;
• and
• a replacement step of when a selection of the input candidate displayed by the display step is received, replacing, with the selected input candidate, the ladder circuit of which the variable name has been input by the input unit interface,
• when the circuit and other ladder circuits connected to the function blocks are common between the searched ladder circuit, the processor further extracts a circuit formed by the searched ladder circuit and the other ladder circuits as the partial circuit.