Fluke 5500A - Page 172

5500A
Operator Manual
5-24
MESSAGE
DESCRIPTION
DATA
BUS
HAND-
SHAKE
BUS
MANAGEMENT
M
N
E
M
MESSAGE
NAME
T
Y
P
E
C
L
A
S
S
D
I
O
8
D
I
O
7
D
I
O
6
D
I
O
5
D
I
O
4
D
I
O
3
D
I
O
2
D
I
O
1
D
A
V
N
R
F
D
N
D
A
C
A
T
N
E
O
I
S
R
Q
I
F
C
R
E
N
ACG Addressed Command Group M AC 0 0 0 1
ATN Attention U UC 1
DAB Data Byte MDDB8B7B6B5B4B3B2B1 0
DAC Data Accepted U HS 0
DAV Data Valid U HS 1
DCL Device Clear MUC 0010100 1
END End U ST 0 1
EOS End Of String MDDB8B7B6B5B4B3B2B1 0
GET Group Execute Trigger M AC 0001000 1
GTL Go To Local MAC 0000001 1
IDY Identify U UC 1
IFC Interface Clear U UC 1
LAG Listen Address Group M AD 0 1 1
LLO Local Lock Out MUC 0010001 1
MLA My Listen Address M AD 0 1 B5 B4 B3 B2 B1 1
MTA My Talk Address MAD 1 0 B5B4B3B2B1 1
MSA My Secondary Address M SE 1 1 B5 B4 B3 B2 B1 1
NUL Null Byte MDD 0000000
OSA Other Secondary Address M SE (OSA = SCG ^ MSA-NOT)
OTA Other Talk Address M AD (OTA = TAG ^ MTA-NOT)
PCG Primary Command Group M ---- (PCG = ACG • UCG • LAG • TAG)
PPC Parallel Poll Configure MAC 0000101 1
PPE Parallel Poll Enable M SE 110B4B3B2B1 1
PPD Parallel Poll Disable MSE 111B4B3B2B1 1
PPR1 Parallel Poll Response 1 U ST 1 1 1
PPR2 Parallel Poll Response 2 U ST 1 1 1
PPR3 Parallel Poll Response 3 U ST 1 1 1
PPR4 Parallel Poll Response 4 U ST 1 1 1
PPR5 Parallel Poll Response 5 U ST 1 1 1
PPR6 Parallel Poll Response 6 U ST 1 1 1
PPR7 Parallel Poll Response 7 U ST 1 1 1
PPR8 Parallel Poll Response 8 U ST 1 1 1
PPU Parallel Poll Unconfigure MUC 0010101 1
REN Remote Enable U UC 1
RFD Ready For Data U HS 0
RQS Request For Service U ST 1 0
SCG Secondary Command Group M SE 1 1 1
SDC Selected Device Clear MAC 0000100 1
SPD Serial Poll Disable MUC 0011001 1
SPE Serial Poll Enable M UC 0011000 1
SRQ Service Request U ST 1
STB Status Byte MST B8 B6B5B4B3B2B1 0
TCT Take Control MAC 0001001 1
TAG Talk Address Group M AD 1 0 1
UCG Universal Command Group M UC 0 0 1 1
UNL Unlisten MAD 0111111 1
UNT Untalk MAD 1011111 1
Figure 5-7. IEEE-488 Remote Message Coding