| 摘要 |
A safety control system allows the number of processor units to be reduced to achieve cost and space reduction, while completely maintaining synchronization between safety functions in a dual-mode configuration. The safety control system includes a first processor unit 11 that performs both of a control function and a safety function and a second processor unit 12 that performs only a safety function. The first processor unit 11 includes a safety data transfer device 26 for, when communication data includes safety data, generating an internal interruption signal and an external interruption signal to the second processor unit 12, and transferring the safety data to the second processor unit 12, and a safety data execution 27 device for executing safety processing by the internal interruption signal. The second processor unit 12 starts up with the external interruption signal and executes safety processing based on the safety data transferred from the first processor unit 11. |
