| 摘要 |
<p>The control device (2) has peripheral devices (3) and an interface (7) for a bus (4), which connects the control device with the peripheral devices. A programmable logic controller (5) is failsafe and controls failsafe operations of one of the peripheral devices. A safety-computer unit recognizes a telegram repetition, a telegram loss, insertion of a telegram and an incorrect sequence of telegrams with a corruption of user data, a delay of telegrams, a pairing of safety relevant and addressing error. An independent claim is included for a system for error-proof data communication.</p> |
