A method for operating a wireless communication link between a mobile handheld terminal and a machine control, as well as corresponding system components

摘要

The invention relates to a method for operating a data communication link between a wireless data-linked mobile manual operator device (2) and a machine controller with the help of at least one bidirectional first radio link (13) and an at least largely concurrent bidirectional second radio link (14) that is technically separated from the first radio link (13). The mobile manual operator device (3) comprises at least one protective switching element (25; 26) for reliably terminating potentially dangerous processes and operating states of the controlled technical apparatus (6). The mobile manual operator device (2) further comprises output means (29) for outputting information. All of the transmitted data, command and safety information is subdivided into a first class of data that has high time priority and a second class of data which has low time priority. The data from the first class of data is transmitted via the first radio link (13) while the data from the second class of data is transmitted via the second radio link (14).