Data Record

The 3512 can have optional timing information included in the record. You can tell by checking for the time-stamp included bit in the second word.

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

^^^^ ^^^^ ^^^^ ^^-----------------------data id

                 ^^ ^^^^ ^^^^ ^^^^ ^^^^-length in longs

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

       ^--------------------------------1 = double word timestamp included

        ^ ^^^---------------------------crate

             ^ ^^^^---------------------card

if timestamp included the next two words follow, otherwise the data follows

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^-reference date (high part of double)

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^-reference date (low part of double)

...followed by data words. len - (2 if NO timestamp) or (4 if timestamp included)