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Automatically Set at
Power On Conditions
Automatically
Set by
Parser
Set by *OPC
Related Commands
are *OPC? and *WAI
Operation Status Register
STATus:OPERation:CONDition?
0
1
2
3
4
5
6
7
Scan
8
Complete
9
10
11
12
13
14
15
C
EV
88 Switchbox Command Reference
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Standard Event Register
*ESR?
Power On
0
<1>
User Request
1
<2>
Command Error
2
<4>
Execution Error
3
<8>
Device Dependent Error
4
<16>
Query Error
5
<32>
Request Control
6
<64>
Operation Complete
7
<128>
EV
EN
Output Buffer
STATus:OPERation:EVENt?
STATus:OPERation:ENABle
<1>
<2>
<4>
<8>
Summary
<16>
Bit
<32>
<64>
"OR"
<128>
+
<256>
<512>
<1024>
<2048>
<4096>
<8192>
<16384>
<32768>
EN
Figure 4-1. E1476A Multiplexer Module Status System
*ESE <unmask>
*ESE?
"OR"
+
Status Byte Register
*STB?
SPOLL
*SRE <unmask>
*SRE?
Summary
0
<1>
Bit
1
<2>
2
<4>
QUE
3
<8>
MAV
4
<16>
ESB
5
<32>
RQS
6
OPR
7
<128>
Status
EN
Byte
Request Service
unmask examples:
Register
Operation Complete
*ESE 61 unmasks standard event register bits 0,
2, 3, 4 and 5 (*ESE 1 only unmasks bit 0).
*SRE 128 unmasks the OPR bit in the status
byte register. This is effective only if the
STAT:ENAB <unmask> command is executed.
(See below)
STAT:OPER:ENAB 256 unmasks bit 8 (Scan Complete)
which can set the OPR bit in the Status Byte.
NOTE:
QUE = Questionable Data
MAV = Message Available
ESB = Standard Event
RQS = Request Service
OPR = Operation Status
C = Condition Register
EV = Event Register
EN = Enable Register
SRQ = Sevice Request
"OR"
+
SRQ ROUTING
handled by your
application
SRQ
program or
passed to the
controller via
GPIB
unmask
decimal
bit
weight
"OR"
+
OPR
8
<256>
Chapter 4
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