Hioki 9593-03, Инструкция по эксплуатации

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4.11 Event Registers
The 3157 includes two 8-bit event registers. It is possible to determine the
status of the unit by reading these registers.
The event register is cleared in the following situations:
• When a "*CLS" command is executed.
• When an event register query is executed. (*ESR?, :ESRO?)
• When the unit is powered on.
(1) Standard event status register (SESR) bit assignments
Bit 7
Power on flag.
PON
When the power is turned on, or on recovery from a power cut,
this bit is set to 1.
Bit 6 Unused.
Command error.
When a command which has been received contains a syntactic
Bit 5
or semantic error, this bit is set to 1.
CME
• The command is not supported by the 3157.
• There is a mistake in a program header.
• The number of data parameters is wrong.
• The format of the parameters is wrong.
Execution error.
Bit 4
When for some reason a command which has been received
EXE
cannot be executed, this bit is set to 1.
• The designated data value is outside the set range.
• The designated data value is not acceptable.
Device dependent error.
When a command cannot be executed due to some cause other
Bit 3 than a command error, a query error, or an execution error,
DDE this bit is set to 1.
• Execution is impossible due to an abnormality inside the
3157.
Query error.
Bit 2
This bit is set to 1 when a query error is detected by the output
QYE
queue control.
• When the data overflows the output queue.
• When data in the output queue has been lost.
Bit 1 Unused.
Bit 0 Unused.
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4. 11 Event Registers
HIOKI 9593C981-01