| 摘要 |
In order to request station-specific information in a network of distributed stations, it is proposed that a block read access operation (30) first be used to request the desired information. Should the requested network station react with an error code, the corresponding network subscriber station is not immediately removed from the "node information" table for the network. Instead, the station-specific information is then rerequested, but this time using word access operations (34). This measure allows network subscriber stations to be integrated into the "node information" table which support only word read access operations, but return unclear error codes, which are not fully compliant with the standard, in the event of block read access operations.
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