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Bit calculations and bit in AF Analysis

Question asked by suryaw on Apr 2, 2016
Latest reply on Apr 22, 2016 by PraveenBangari


Currently we're facing problem regarding bit calculations (AND, OR, NOT, XOR, etc.). PLC will send the data in the form of a binary bit packed word (16 bits), and I need to find where bit with value 1, in that first 10 sequence.

For example, if I have the bit sequence 11100010110001110010110000010111, then I should know that I need to read the status based on bit in the sequence number 1, 2, 3, and 5.


And the second is, if I have value < 4,000,000,000, the bit calculations working fine, but if I have value more than 4,000,000,000, the bit calculations is not working. For example, if I have formula “862,022,950 AND 348”, then the AF Analysis will show me the correct result, which is 260. But if I have formula “4,294,966,695 AND 348”, the AF Analysis will show me wrong result, which is 0, because it should be 260.


Kindly need your help regarding this issues.

Thank you