Input supporting method of variable name in programming of PLC

摘要

This invention enables a target variable name to be confirmed without inputting all the character string even when a method of giving a name such as allocating a number to the end of the name is performed from the necessity to allocate a variable name having the same meaning to a plurality of different addresses. If narrowed down variable name exists in plurals and one or two or more continuous next character strings match each other among the variable names, the series of character strings without any choice are automatically adopted and confirmed as the character string of the target variable name without waiting for the input of an operator.