6-13
Error Messages
Execution Error
Execution Error
An error number in the range [299 to 200] indicates that an error has been detected by the instrument’s
execution control block. The occurrence of any error in this class will cause the execution error bit (bit 4)
in the event status register (IEEE 488.2, section 11.5.1) to be set. If this bit is set, one of the following
events has occurred:
• A <PROGRAM DATA> element following a header was evaluated by the device as outside of its legal input range
or is otherwise inconsistent with the device’s capabilities.
• A valid program message could not be properly executed due to some device condition.
Execution errors will be reported by the device after rounding and expression evaluation operations have
been completed. Rounding a numeric data element, for example, will not be reported as an execution error.
Events that generate execution errors will not generate command errors, device-specific errors, or query
errors; see the error definitions in this chapter.
Execution Error Message Descriptions
This section lists the signal generator’s execution error messages and their associated descriptions.
Error Number Error Description [description/explanation/examples]
-200
Execution Error
This is a generic syntax error for devices that cannot detect more specific errors. The
code indicates only that an execution error as defined in IEEE 488.2, 11.5.1.1.5 has
occurred.
-201
Invalid while in local
Indicates that a command is not executable while the device is in local mode due to a
hard local control (see IEEE 488.2, 5.6.1.5). For example, a device with a rotary switch
receives a message which would change the switch’s state, but the device is in local so
the message cannot be executed.
-202
Settings lost due to rtl
Indicates that a setting associated with a hard local control (see IEEE 488.2, 5.6.15) was
lost when the device changed to LOCS from REMS or to LWLS from RWLS.
-210
Trigger error
Indicates that a GET, *TRG, or a triggering signal could not be executed due to an
error.
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