Version: 2020-09-04
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TEL +49(40)22692910 - EMAIL generex@generex.de - WEB www.generex.de (This and all other product datasheets are available for download.)
The BACS programmer will notice this incoming data packets and show the number signature:
Due to the fact the data packages are signated with a unique number, it is possible to examine the quality of the data signal. In case the
data packet is broken or invalid, it will be rejected.
Due to the fact you will notice following:
- The counter does not start, the screen is blank
In this case, no incoming data packets are noticed. If the send line test works as expected, please check if all modules are at
default ID 0. Most common problem: Starting this test is a little bit tricky – you need to hold the button while inserting the
measuring cables to repower the module. When you release the button, the test starts. If the test does not start, you cannot
receive data packets.
- Jumping numbers
Yes, the test started and the last module inside the chain sends his 300 data packets. In this case there are missing or broken
data packets. These packets are lost and will show, in general it may work but there is something wrong inside the cabling. To
find the reason why, you may spit the bac modules in two different strings and repeat the test until all numbers will be shown
evenly.
- It starts counting evenly, but it suddenly stops.
This means, the chain is interrupted physically or something will block all data packets.
- It runs as expected
The numbers will be shown evenly and the countdown starts at 299 and stops with 0. Data quality is OK, all modules will
respond.
Since the data packages are signed, a fault in the data line can be diagnosed very quickly because the display window counts
irregularly or displays jumping numbers. If the meter stops at a number, it can be assumed that the data connection has collapsed.
Note
This test starts only if the trigger timing on the last BACS module is consistent. If the test does not start, first make sure that the test was
triggered correctly. Otherwise, the Receive Line Check will indicate a fault in the BACS cabling.
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