ESG Family Signal Generators |
-499 to -400: Query Errors
The instrument’s output queue control has detected a problem with the message exchange protocol described in IEEE 4888.2, Chapter 6. Errors in this class set the query error bit (bit 2) in the event status register (IEEE 488.2, section 11.5.1). These errors correspond to message exchange protocol errors described in IEEE 488.2, 6.5.
In this case, either an attempt is being made to read data from the output queue when no output is either present or pending, or data in the output queue has been lost.
Query UNTERMINATED after indefinite response | |
| A query was received in the same program message in which a query |
| requesting an indefinite response was executed (see IEEE 488.2, 6.3.7.5). |
Query DEADLOCKED | |
| A condition causing a DEADLOCKED query error occurred (see |
| IEEE 488.2, 6.3.1.7). For example, both the input buffer and the output |
| buffer are full and the device cannot continue. |
| Query DEADLOCKED |
| A SCPI output queue has filled, preventing further SCPI command |
| execution, and there is no more room left in the corresponding SCPI input |
| queue to accept a query to read from the output queue. The system |
| automatically discards output to correct the deadlock. |
Query UNTERMINATED | |
| A condition causing an UNTERMINATED query error occurred (see |
| IEEE 488.2, 6.3.2.2). For example, the device was addressed to talk and an |
| incomplete program message was received. |
Query INTERRUPTED | |
| A condition causing an INTERRUPTED query error occurred (see |
| IEEE 488.2, 6.3.2.7). For example, a query was followed by DAB or GET |
| before a response was completely sent. |
Query Error | |
| This is a generic query error for devices that cannot detect more specific |
errors. The code indicates only that a query error as defined in IEE 488.2, 11.5.1.1.7 and 6.3 has occurred.
Error Messages | 5 |
