Printronix SL4M Reference Manual page 98

Chapter 3
64 Bit And 96 Bit EPC Data Formats
IMPORTANT
When any of these three parameters are inconsistent then
confusion is likely.
The following tables (Table 7 on page 98 for PGL and Table 8 on
page 99 for ZGL) identify the consequences of mismatched criteria.
EPC Format Selected
(based on Tag Data
header) Length
64 bit 64 bit
64 bit 64 bit
64 bit 64 bit
64 bit 96 bit
64 bit 96 bit
64 bit 96 bit
64 bit 96 bit
64 bit 96 bit
96 bit 64 bit
96 bit 64 bit
96 bit 64 bit
96 bit 96 bit
96 bit 96 bit
96 bit 96 bit
98
Table 7. PGL EPC Format Handling
Size of Data
Request (from
program)
< 64 bit
= 64 bit
> 64 bit
< 64 bit Read 96 bit
= 64 bit Read 96 bit
64 bit <> 96 bit Read 96 bit
= 96 bit
> 96 bit
< 64 bit
= 64 bit
> 64 bit
< 96 bit
= 96 bit
> 96 bit
Result Comment
OK Pad 0s to left for 64 bit
OK As is
Error Data too long
Pad 0s to left for 96 bit
Pad 0s to left for 96 bit
Pad 0s to left for 96 bit
Error EPC incompatible with
length
Error Data too long
Error EPC incompatible with
length
Error EPC incompatible with
length
Error Data too long
OK Pad 0s to left for 96 bit
OK As is
Error Data too long