| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize a highly reliable plant control system with respect to the dealing of character string data. SOLUTION: A plant information display means 1 inputs various plant information such as the process data of plant equipment or the other data from a control part 6, and inputs character string data stored in a character string data storing means 7, and displays the character string data on a picture, and outputs the character string data to a character string data preparing means 2. The character string data preparing means 2 outputs the prepared character string data to a character string/function strapping means 4. The character string/function strapping means 4 makes the inputted character string data correspond to a function based on a character string/function definition table 3. A character string data registering means 5 registers the result of the character string/function strapping means 4, and transmits it to the character string data storing means 7, and makes the character string data storing means 7 store it. Then, the unitary management of the character string data is executed based on the storing function of a PLC1 so that high reliability can be obtained with respect to the dealing of the character string data.</p> |
