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525B
Users Manual
MESSAGE
DESCRIPTION
M
N
MESSAGE
E
M
PPC
Parallel Poll Configure
PPE
Parallel Poll Enable
PPD
Parallel Poll Disable
PPR1
Parallel Poll Response 1
PPR2
Parallel Poll Response 2
PPR3
Parallel Poll Response 3
PPR4
Parallel Poll Response 4
PPR5
Parallel Poll Response 5
PPR6
Parallel Poll Response 6
PPR7
Parallel Poll Response 7
PPR8
Parallel Poll Response 8
PPU
Parallel Poll Unconfigure
REN
Remote Enable
RFD
Ready For Data
RQS
Request For Service
SCG
Secondary Command Group
SDC
Selected Device Clear
SPD
Serial Poll Disable
SPE
Serial Poll Enable
SRQ
Service Request
STB
Status Byte
TCT
Take Control
TAG
Talk Address Group
UCG
Universal Command Group
UNL
Unlisten
UNT
Untalk
4-12
Table 4-4 IEEE-488 Remote Message Coding (continued)
T
C
Y
L
P
A
NAME
E
S
S
M AC
M SE
M SE
U ST
U ST
U ST
U ST
U ST
U ST
U ST
U ST 1
M UC
U UC
U HS
U ST
M SE
M AC
M UC
M UC
U ST
M ST B8
M AC
M AD
M UC
M AD
M AD
DATA
BUS
D
D
D
D
D
D
I
I
I
I
I
I
O
O
O
O
O
O
8
7
6
5
4
3
0
0
0
0
1
0
1
1
0
B4 B3 B2 B1
1
1
1
B4 B3 B2 B1
1
1
1
1
1
1
0
0
1
0
1
0
1
1
1
0
0
0
0
1
0
0
0
1
1
0
0
0
0
1
1
0
0
B6 B5 B4 B3 B2 B1
0
0
0
1
0
0
1
0
0
0
1
0
1
1
1
1
1
1
0
1
1
1
1
HAND-
SHAKE
MANAGEMENT
D
D
D
N
N
A
I
I
A
R
D
T
O
O
V
F
A
N
2
1
D
C
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
0
1
1
1
0
1
0
1
1
1
1
1
1
1
1
BUS
E
S
I
R
O
R
F
E
I
Q
C
N
1
1
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