Rice Lake 820i Programmable Indicator/Controller - Installation Manual - Manual (Page 103)

Appendix 99
10.9 PS/2 Keyboard Interface
Serial port 1 (connector J9) on the
820i
CPU board
provides a PS/2-type keyboard interface (Scan Code
Set 1 only) for use with a remote keyboard.Table 10-9
shows the pin assignments for a PS/2 keyboard cable.
Table 10-9. PS/2 Keyboard Connector Pin Assignments
Pin Signal Male Connector
1 DATA
1 2
3 4
5 6
2 (reserved)
3 GND
4 +5V
5 CLOCK
6 (reserved)
Table 10-10 summarizes the
820i
-specific functions
provided by the keyboard interface; most other
alphanumeric and navigational keys provide functions
equivalent to those typical for PC operation. Menu
parameters and serial commands that affect indicator
k e y p a d o p e r a t i o n ( i n c l u d i n g t h e K B D L C K ,
ZERONLY, and KLOCK serial commands) also affect
the remote keyboard.
Note
The keyboard interface is not hot-pluggable.
Disconnect power to the
820i before
connecting the keyboard cable to the Port 1
connector.
Table 10-10. PS/2 Keyboard Functions
Key Function
F1 Softkey 1
F2 Softkey 2
F3 Softkey 3
F4 Softkey 4
F5 Softkey 5
F6 (Alt+Z) ZERO key
F7 (Alt+G) GROSS/NET key
F8 (Alt+T) TARE key
F9 (Alt+U) UNITS key
F10 (Alt+P) PRINT key
F11 Not used
F12
Print Screen Same as PRINT key, in both
normal and setup modes
troy ounces 480 grains
31.10348 grams
0.031103 kilograms
1.09714 ounces
0.068571 pounds
0.083333 troy pounds
troy pounds 5760 grains
373.2417 grams
0.373242 kilograms
13.16571 ounces
0.822857 pounds
12 troy ounces
Primary Unit x Multiplier
Secondary/
Tertiary Unit
Table 10-8. Conversion Factors (Continued)