| 摘要 |
PURPOSE:To check the titled controller with less burden on an operation section and to prevent outputs in error, by transferring each operating result to other sections and detecting the dissidence of data, in a duplex system of the controller having the same function. CONSTITUTION:A data controlled and operated at an operation section 15 with the content stored in a program memory 16 and written in a data memory 17 is read out via a memory multiplexer 53 at a data comparison section 54 and transmitted to a data reception section 52 of a remote terminal via a data transmission section 51. The data reception section 52 of the controller receiving the data reads it. The data comparison section 54 compares the transmitted data with the received data ane outputs the result of operation to an output section 14 when both are the same. When both are different, the data of the data memory 17 is read once more and the data is transmitted to the remote terminal. |
