Panasonic LP-ABR10 Series Setup & Operation Manual page 59

5.2.11 Output data length
Adds output data length given at reading excluding the header, terminator and
BCC to sybmol data. There are two types of output digits: 4 digits and 5 digits.
If the number of digits of output data is less than 4 digits or 5 digits, add 0 to the
beginning.
(Output format)
Header + Output data length + Data + Terminator
(Example output)
4 digits
001410000000099070
5 digits
0001410000000099070
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