| 摘要 |
PROBLEM TO BE SOLVED: To provide a program diagram display device capable of displaying a feedback relation as a program diagram, the feedback relation taking account of the operation of a whole control system including external devices of a PLC (Programmable Logic Controller) and control objects.SOLUTION: The program diagram display device according to the present invention includes: a sheet definition information storage unit 14 in which sheet definition information is stored; a variable definition information storage unit 15 in which variable definition information is stored; a plant model definition information storage unit 17 in which plant model definition information is stored; and a feedback presentation information generating unit 16 that generates feedback presentation information. The feedback presentation information generating unit 16 generates the feedback presentation information for presenting feedback relation with a designated variable, using the plant model definition information. |
