Casio SE-S3000 Dealer's Manual page 16

Key allocation programming (P4)
Issuing program reading report of program 4 mode
Issuing procedure
Refer to page 8 to enter the program mode.
PGM
Select
"System Setting"
Report sample
P04 ....................
1−−−−−−−−−−−−−−−−−−−−−−−−−−
00
.
CASH
16
64s6s
— Program read symbol
— Function character/rec-#/file-#
0015−02
— Hard key code/function code
011−096
0009−02
012−098
0004−02
013−001