Stumped. DL06 Addressing with "B"

Tronador

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Join Date
Jul 2019
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Quebec
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Anybody have any info on the addressing prefix "B" used on the DL06 units?

I am working with 4 Direct Logic DL06 units (D0-06AR) connected to each other via ethernet on ECOM-100 cards. Some of these units are also configured with extra modules, analog input (F0-4AR2DA-1) and thermocoupler (F0-04THM). I have been tasked with understanding what an existing program is designed to do and I am stumped by some of the addressing. Within the code, Each PLC is programmed using multiple addresses that use a "B" prefix as well as a number with a decimal. For example: B3000.0, B3000.1, B3000.2, B3200.1, B3200.2, etc.) I cannot find the standard use for this B address anywhere in the main manual or those for the expansion modules.

Anybody ever seen this used before?

Thanks in advance.
 
B allows addressing a V memory location to the bit level. It is documented separately from the V mem, so V2000 could be Called "array of bits" or whatever and B2000.0 would be the least significant bit of V2000 and called "Really bit 0 of V2000" in the description.

Wordy I think but hopefully you get the idea.
 

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