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The IEEE 488.2 INTERRUPTED error arises if the response formatter is waiting to send a
response message and a <PROGRAM MESSAGE TERMINATOR> has been read by the
parser, or the input queue contains more than one END message. This will cause the Query
Error bit to be set in the Standard Event Status Register, a value of 1 to be placed in the Query
Error Register and the response formatter to be reset, discarding the waiting response
message. The parser will then start parsing the next <PROGRAM MESSAGE UNIT> from the
input queue.
Power on Settings
The following instrument status values are set at power on:
EER
Execution Error Register
= 0
ESR
Standard Event Status Register
= 128 (pon bit set)
QER
Query Error Register †
= 0
ESE
Standard Event Status Enable Register †
= 0
STB
Status Byte Register
= 0
SRE
Service Request Enable Register †
= 0
PRE
Parallel Poll Response Enable Register †
= 0
†
Registers marked thus are normally only used through the GPIB interface.
The instrument will be in local state with the keyboard active. By default, the instrument settings
at power on are the same as at the last switch off and the outputs are off. These parameters
may be configured by the user to allow outputs to be the same as at the last switch off or,
alternatively, all settings and outputs may be reset to factory defaults at power on, see 9.1.
Register Summary
Set
Query
Name
LSR1?, LSR2?, LSR3?,LSR4? Limit Status Registers
LSE1, LSE2, LSE3, LSE4 LSE1?, LSE2?, LSE3?, LSE4? Limit Status Enable Registers
†
EER?
Execution Error Register
†
QER?
Query Error Register
†
*ESR?
Standard Event Status Register
*ESE
*ESE?
Standard Event Status Enable
Register
*STB?
Status Byte Register
*SRE
*SRE?
Status Byte Enable Register
*PRE
*PRE?
Parallel Poll Response Enable
Register
†
These registers are cleared after being queried, or by the *CLS command.
