Ladder diagram program creation assistance device, ladder diagram program creation assistance method, and non-transitory computer readable recording medium

A ladder diagram program creation assistance method, comprising, executed by a computer:

• a partial circuit selection step of selecting a partial circuit comprising a plurality of contacts in a ladder diagram program;
• a replacement circuit generation step of generating a replacement circuit comprising a smaller number of contacts than the partial circuit selected in the partial circuit selection step;
• an auxiliary circuit generation step of generating an auxiliary circuit that causes the replacement circuit generated in the replacement circuit generation step to perform a same action as the partial circuit selected in the partial circuit selection step;
• and
• a program editing step of performing, on the ladder diagram program, a replacement process for replacing the partial circuit appearing in the ladder diagram program with the replacement circuit generated in the replacement circuit generation step, and an auxiliary circuit insertion process for inserting the auxiliary circuit generated in the auxiliary circuit generation step into the ladder diagram program.

A non-transitory computer readable recording medium storing a ladder diagram program creation assistance program, the ladder diagram program creation assistance program causing a computer to execute:

• a partial circuit selection step of selecting a partial circuit comprising a plurality of contacts in a ladder diagram program;
• a replacement circuit generation step of generating a replacement circuit comprising a smaller number of contacts than the partial circuit selected in the partial circuit selection step;
• an auxiliary circuit generation step of generating an auxiliary circuit that causes the replacement circuit generated in the replacement circuit generation step to perform a same action as the partial circuit selected in the partial circuit selection step;
• and
• a program editing step of performing, on the ladder diagram program, a replacement process for replacing the partial circuit appearing in the ladder diagram program with the replacement circuit generated in the replacement circuit generation step, and an auxiliary circuit insertion process for inserting the auxiliary circuit generated in the auxiliary circuit generation step into the ladder diagram program.