| 摘要 |
PURPOSE:To allow communication between a master and a subordinate station by changing inputs to a prescribed port of a microcomputer and changing programs. CONSTITUTION:A master station 20 receives parallel data from a copying machine and converts it through a microcomputer 21 to transmit the serial data from a terminal ANT. The subordinate station 30 receives the data from a terminal ANT and converts it into parallel data OUT2 through a microcomputer 31 to control an attachment such as a sorter. Data IN2 on the subordinate station side is sent to the master station side and converted into data OUT1 similarly. The master station 20 has the function of matching the clock period of data transmission with the subordinate station 30. Changeover switches 22 and 32 are changed over to invert R4 port inputs to the microcomputers 21 and 31, changing the functions between the master station 20 and subordinate station 30. |
