ICS ELECTRONICS 4863 Manual page 137

ASCII -- IEEE 488 BUS MESSAGES (COMMANDS AND ADDRESS) HEX CODES
MSD 0
LSD
ASCII MSG ASCII
0 NUL DLE
1 SOH GTL DC1
2 STX DC2
3 ETX DC3
4 EOT SDC DC4
5 ENQ PPC NAK
6 ACK SYN
7 BEL ETB
8 BS GET CAN
9 HT TCT EM
A LF SUB
B VT ESC
C FF FS
D CR GS
E SO RS
F SI US
ADDRESSED UNIVERSAL
COMMAND COMMAND
GROUP GROUP
Notes:
1. Device Address messages shown in decimal
2. Message codes are:
DCL -- Devices Clear
GET -- Device Trigger
GTL -- Go to Local
3. ATN off, Bus data is ASCII; ATN on, Bus data is an IEEE MSG.
1 2 3
ASCII MSG1 ASCII
MSG
SP 00 0
! 01 1
LLO
" 02 2
# 03 3
$ 04 4
DCL
% 05 5
PPU
& 06 6
' 07 7
( 08 8
SPE
SPD ) 09 9
* 10 :
+ 11 ;
, 12 <
- 13 =
. 14 >
/ 15 ?
LISTEN ADDRESS GROUP
PRIMARY COMMAND GROUP (PCG)
LLO -- Local Lockout
PPC -- Parallel Poll Configure
PPU -- Parallel Poll Unconfigure
4 5
MSG1 ASCII MSG1 ASCII MSG1
16 @ 00 P
17 A 01 Q
18 B 02 R
19 C 03 S
20 D 04 T
21 E 05 U
22 F 06 V
23 G 07 W
24 H 08 X
25 I 09 Y
26 J 10 Z
27 K 11 [
28 L 12 \
29 M 13 ]
30 N 14 ^
_
UNL O 15 UNT
TALK ADDRESS GROUP
SDC -- Selected Device Clear
SPD -- Serial Poll Disable
SPE -- Serial Poll Enable
6
7
ASCII MSG ASCII MSG
16 ` p
17
a q
18
b r
19 c s
20
d t
21
e u
22 f v
23
g w
24
h x
25 i y
26
j z
27
k (
28 l |
29
m )
30
n ~
o DEL
SECONDARY COMMAND
GROUP