| 摘要 |
PROBLEM TO BE SOLVED: To reduce a circuit scale, to restrain an enlargement of a device, and to reduce a cost by reducing the number of connecting lines in a connecting part of a control part and a serial or parallel interface (I/F) part. SOLUTION: A serial I/F circuit board 7A receives a signal outputted from the control part 1, and turns back and outputs this signal to the control part 1. The control part 1 takes in this turned-back signal, and the control part 1 takes in setting information of a DIP/SW setting circuit 9 including an operational environment and the device constitution in the serial I/F circuit board 7A via one data line, and detects various setting information (for example, a selecting value of a baud rate and a protocol) in the installed serial I/F circuit board 7A. |
