Communication method of 3270 data format in system communication network structure (SNA)

摘要

The present invention is for communication equipment used on IBM's SNA Network.;First, the SNA Network, which is an environment in which the present invention is used, is understood, and data to be moved through the communication environment is received, and control information and pure information used for communication are distinguished from the data. After this process, the obtained pure data is converted into a code suitable for the printer currently in use or the printer to be used, and the output is made possible.;However, in order to output the results of the various tasks performed by the host to the printer through the communication environment, it was necessary to use an expensive large-sized printer having built-in communication functions provided by the host and the manufacturer providing the communication environment . Another method is to connect a general office automation type printer to a personal computer to which a communication processing device is added, or to use a compatible product of a printer having a built-in communication function.;In the former case, it is advantageous to use a widely available printer at a low price without using expensive printers, but there is a disadvantage that one personal computer should be used for the printer. In addition, in the latter case, it is necessary not only to pay a high price but also to replace the built-in communication equipment in order to reinforce the function of the printer, and this printer is different in purpose from other general printers,;Considering these aspects, it has been necessary to equip a lot of equipment to output the on-line job processed by the host.;The present invention allows the facility to be configured at a lower cost for this task, thereby increasing the efficiency thereof.;When the present invention is used, it is possible to output the on-line job of a host without any other equipment such as a personal computer by connecting an office automation printer which is in use or easily available in the market, The connected printer can be replaced, and in some cases also used for general office automation purposes. In addition, by using the jump switch, the communication controller is designed to handle both the case of 3174 and the case of 47xx, and the output of the batch processing KDP Kanji can be processed perfectly, It is possible to perform the function of the line printer necessary for the printer.