| 摘要 |
PURPOSE:To clearly confirm the state of an equipment by displaying the machine number of a communicating equipment on a master equipment side while data transfer between the master and subordinate equipments is carried on. CONSTITUTION:A CPU2 receives an indication from an inputting means 1 to transfer a data transfer request to each subordinate equipment, and also inputs the indication to a control instruction discriminating means 4. The means 4 discriminates whether it is an in-line indication showing data transfer between a master equipment and subordinate equipment. A turn on and of driving means 5 for a lamp 13 for transmission display inputs the discrimination signal to discriminate the in-line indication, and turns on the lamp 13. A discriminating means 7 receives the data transfer request of the CPU2 and the discrimination signal of the means 4 through an AND gate 6 to discriminate what subordinate equipment is specified at present during data transmission. A display part 9 receives the output of the means 7 and the data transfer request of the CPU2 through an OR gate 8 and then displays the machine number of a subordinate equipment which is performing data transmission to the master equipment M. |
