TLS5 User Manual
TLS5-UM-00001 Rev 002
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Bit 1 (request control) is always set to 0.
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Bit 2 (query error) is set when a query error occurs, for example, an attempt
is made to read the output queue when the output queue is empty or when
the data in the output queue is lost.
•
Bit 3 (device dependent error) is set by the laser source to indicate that an
error has occurred that is not a command error, an execution error, or a
query error.
•
Bit 4 (execution error) is set when an execution error is detected by the
laser source, for example, if a command parameter is out of the range of the
meter or a valid program message cannot be executed due to some
condition in the laser source.
•
Bit 5 (command error) is set when a command error is detected by the laser
source, for example, if a syntax error is detected in a program message, an
incorrect command header is received, or if an IEEE GET message is received
in the middle of a program message.
•
Bit 6 (user request) is always set to 0.
•
Bit 7 (power on) is set when an off-to-on transition occurs in the power
supply of the laser source.
Standard Event Status Enable Register
The contents of the standard event status enable register determine which
events in the standard event status register are reflected in the event summary
bit (ESB) of the status byte register.
Queues
Input Queue
The input queue in the TLS Tunable Laser Source is a first-in-first-out (FIFO)
queue and is 128 characters in length. Data bytes received from the controller
are placed in the input queue in the order received. When a full message is
received, it is transferred to the parser.
If the input queue becomes full while the GPIB is being used, the data
acknowledge signal (DAQ) is not sent to the GPIB controller until a character is
Standard Event Status Enable Register
Read with
*ESE?
common query
Written to with
*ESE
common command
Cleared by
Power-on
*ESE
common command with a parameter 0
Summary of Contents for TLS5
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