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B-Addressing Parameters of Block Tags |
B1 |
Slave address |
B2 |
Code of a function to perform. For more information, please check table Function Codes |
B3 |
Code of an object and variation (Object × 100 + Variation) |
B4 |
Initial address or number of a variable |
Using Block Tags to read events is not allowed, because all Block Elements share a single timestamp, which cannot be accepted as each event has its own occurrence time. Therefore, when reading the B2 parameter must be equal to 0 (zero, Read from cache). The only exception is when using Single Block Events because, in this case, the timestamp of each event is reported in a fixed Element of a Block Tag.