Tally T5023+ Programming Manual page 150

Definition of characters Character set commands
The number of the totals to be calculated (data bytes) depends on the size of the
dot grid. For example, with a 24 by 29 dot grid, three data bytes per column must
be calculated, i. e. altogether 3 * 29 = 87 data bytes.
Example:
140
T5023/5023+ - Programming Guide