Stanford Research Systems SR810 Manual page 70

Front Panel
[Local]
REMOTE
SRQ
ACTIVE
ERROR
Hex ASCII
2A *
2B +
2C ,
2D -
2E .
30 0
31 1
32 2
33 3
Hex ASCII
0A linefeed
41 A
42 B
43 C
44 D
45 E
46 F
47 G
48 H
49 I
4A J
4B K
4C L
4D M
4E N
4F O
When a host computer places the unit in the REMOTE state, no keypad
input or knob adjustment is allowed. The REMOTE indicator is on above
the [Local] key. To return to front panel operation, press the [Local] key.
This led is on when the front panel is locked out by a computer interface.
No front panel adjustments may be made.
This indicator is on whenever a GPIB Service Request is generated by
the SR810. SRQ stays on until a serial poll is completed.
This indicator flashes when there is activity on the computer interface.
Flashes whenever there is a computer interface error such as an illegal
command or out of range parameter is received.
4-22
Hex ASCII
34 4
35 5
36 6
37 7
38 8
39 9
3B ;
3F ?
Hex ASCII
50 P
51 Q
52 R
53 S
54 T
55 U
56 V
57 W
58 X
59 Y
5A Z