| 摘要 |
PURPOSE:To attain transmission with high reliability, by forming a control data with a plurality of control codes and detecting constant marks of a word address and the control data. CONSTITUTION:A data transmitter 1a forms a control data with mCn-pCq codes and a word address with a kCl for the word formation and transmits the words to communcating lines L1-Ln in the specified transmission format. Data transmitters 2-1a-2-na give words received from the communication lines L1-Ln to address constant mark detection sections 4-1-4-n. The sections 4-1-4-n detect constant mark with respect to inputted word address as and give the control data to either of corresponding data output sections 5-1-5-n,...6-1-6-n when no error exists. Each data output section performs constant mark detection on the inputted control data, and when no error exists, an output signal is given to each controlled variable device according to the content of the control code. |
