| 摘要 |
PURPOSE:To provide a slave controller with an operation function and a display function which are equal to those of a main controller by providing storage means in the main controller and the slave controller and using an optical cable to transmit information in these means between these controllers. CONSTITUTION:After the status quantity of a target system is inputted collectively to a main controller 2 and is stored in an RAM22, the main controller 2 transfers this information to a slave controller 3. The main controller 2 discriminates whether remote control is possible or not; and if it is possible, information transmitted from the controller 3 is stored in the RAM22. This information is displayed on a display device 16 of an operation panel part 11 as required. Meanwhile, the controller 3 stores information, which is transferred from the controller, in an RAM52. The set state of an operation panel 41 is stored in the RAM52 and is transferred to the controller 2. These information are transmitted as serial data, and optical fibers 34 and 35 are used for transmission and reception. The protocol concerning the transmission between these controllers is so set that an interrupt processing is started by the start bit of the transmission signal. |
