Datalogic PowerScan PD8530 Reference Manual page 53

If the first 4 KEYS (Shift, Alt, Ctrl, and Backspace) are not available on your
keyboard, you can only substitute them with keys not used, or substitute them
with each other.
The reader signals the end of the procedure with 3 beeps indicating the keys
have been registered.
Order
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
CUSTOM EXTENDED KEYBOARD SETTING TABLE
WEDGE
HEX
-
-
-
-
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
90
91
92
93
94
95
96
97
98
99
9A
Custom
KEY
Shift
Alt
Ctrl
Backspace
41