Chapter 4 Remote Interface Reference
The SCPI Status Registers
104
The Standard Event register is cleared when:
• You execute the
*CLS
(clear status) command.
• You query the event register using the
*ESR?
(Event Status register)
command.
For example, 28 (4 + 8 + 16) is returned when you have queried the status of
the Standard Event register, QYE, DDE, and EXE conditions have occurred.
The Standard Event Enable register is cleared when:
• You execute the
*ESE 0
command.
• You turn on the power and have previously configured the power supply
using the
*PSC 1
command.
• The enable register will not be cleared at power-on if you have previously
configured the power supply using the
*PSC 0
command.
The Status Byte Register
The Status Byte summary register reports conditions from the other status
registers. Query data that is waiting in the power supply’s output buffer is
immediately reported through the “Message Available” bit (bit 4) of Status Byte
register. Bits in the summary register are not latched. Clearing an event register
will clear the corresponding bits in the Status Byte summary register. Reading
all messages in the output buffer, including any pending queries, will clear the
message available bit.
Table 4-5. Bit Definitions – Status Byte Summary Register
Bit
Decimal
Value
Definition
0-2
Not Used
0
Always set to 0.
3
QUES
8
One or more bits are set in the questionable status
register (bits must be “enabled” in the enable register).
4
MAV
16
Data is available in the power supply output buffer.
5
ESB
32
One or more bits are set in the standard event register
(bits must be “enabled” in the enable register).
6
RQS
64
The power supply is requesting service (serial poll).
7
Not Used
0
Always set to 0.
Summary of Contents for 2110-0457
Page 9: ...8...
Page 15: ...14 Contents Contents...
Page 16: ...1 Quick Start...
Page 26: ...2 General Information...
Page 38: ...3 Front Panel Operation and Features...
Page 70: ...4 Remote Interface Reference...
Page 122: ...5 Error Messages...
Page 133: ...Chapter 5 Error Messages Calibration Errors 132...
Page 134: ...6 Application Programs...
Page 145: ...Chapter 6 Application Programs Example Program for Excel 97 144...
Page 146: ...7 Tutorial...
Page 157: ...Chapter 7 Tutorial Remote Programming 156...
Page 158: ...8 Specifications...
Page 166: ...Appendix Service Information...
Page 175: ...Appendix Service Information General Disassembly 174 General Disassembly...
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Page 209: ...208 Index Index...