Commissioning and configuration
120
BCL 504
i
Leuze electronic
Notice!
If several barcodes are decoded in sequence without the acknowledge mode having been
activated, the input data of the result modules are overwritten with the respective most re-
cently read decoding result.
If a data loss in the control is to be avoided in such a case, mode 1 (with Ack) should be
activated.
If multiple decoding results occur within one reading gate, it is possible - dependent on the
cycle time - that only the last decoding result is visible on the bus. In this case, the acknowl-
edge mode MUST be used. There is otherwise a risk of data loss.
Multiple, individual decoding results may occur within one reading gate if the Module 12 –
Multi-label (see chapter 10.7.3) or one of the identifier modules (see chapter 10.10 "Identi-
fier" beginning on page 140) is used.
Data reset behaviour:
If the data reset control bit is activated, the following actions are carried out:
1.
Deletion of decoding results that may still be stored.
2.
Reset of module 13 - fragmented read result (see chapter 10.7.4), i.e., even a par-
tially transmitted read result is deleted.
3.
Deletion of the input data areas of all modules. Exception: The input data of module
60 - device status (see chapter 10.11.1) is not deleted. For the status byte of decod-
ing result modules 20 … 27 (see chapter 10.8.2), the two toggle bytes and the read-
ing gate status remain unchanged.