| 摘要 |
PURPOSE:To simplify the constitution of a storage device by providing only a control arithmetic program and a revision number table needed for control arithmetic to the storage device of a controller after preparing a loop control table. CONSTITUTION:A process controller 100 contains a transmission bus 101, controllers 1021-102n and a transmission interface controller 103. The controllers include the transmission processing parts 11-1n which perform transmission of data among said controllers as well as between the controller 103 and the controllers 1021-102n with identification of ports No 21-2n, the executing programs 41-4n, a revision number table which stores the change history information on a control arithmetic program for revision control, and the arithmetic execution processing parts 51-5n which carry out the control arithmetic based on those tables 31-3n and 41-4n. |
