| 摘要 |
A receiver for receiving a measured value is connected to a two-wire transmission line used for transmitting a digital command signal from a communicator, a digital measured value signal from a transmitter, and a response signal responding to the command signal, The receiver includes a timer for discriminating that a nonsignalling state of the two-wire transmission line has continued for a predetermined period, and a CPU for validating a specific period of a reception signal received after the discrimination operation of the timer. |
