| 摘要 |
The invention relates to a method for transmitting data in messages via a communications link (101) of a communication system, in addition to a communications module (100), subscriber (102) of a communications system and a communications system for carrying out said method. The messages are transmitted cyclically in predeterminable time windows (ZF) via the communications link (101). According to said method, the messages that are to be sent and have been sent via said link (101) are first buffered in a message memory (300) of a communications module (100) and the message that is to be sent or received in a current time window is retrieved from the message memory (300), sent or received and is stored in the message memory (300). To improve the real time capability of the communication module (100), the message memory is searched at regular intervals in advance for several respective subsequent time windows (ZF) to determine the position of the messages in the message memory (300) and as a result of a search, the positions of the messages that are to be sent or received in the several subsequent time windows (ZF) are stored in a buffer (600) that is associated with the message memory (300). During the actual data transmission (sending or receiving of messages) the buffer (600) and thus the relevant message objects in the message memory (300) are accessed via the stored positions.
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