8508A
Users Manual
Recoverable Errors
Recoverable errors consist of:
• Command Errors
• Execution Errors
• Device-Dependent Errors
Command Errors can only be generated due to incorrect remote programming.
Some Execution Errors and all Device-Dependent Errors can all be generated by manual
operation as well.
Each of the reportable Execution and Device-Dependent Errors are identified by a code
number.
Command Errors (CME)
Command Errors are generated when the remote command does not conform to the
device command syntax or to the IEEE 488.2 generic syntax. The CME bit (5) is set true
in the Standard-defined Event Status Byte, but there is no associated queue.
The error is reported by the mechanisms described in the sub-section of Chapter 4 that
deals with status reporting.
Errors generated due to incorrect front panel manipulation are not reported to the bus; and
vice versa.
Execution Errors (EXE)
An Execution Error is generated if a received command cannot be executed because it is
incompatible with the current device state, or because it attempts to command parameters
which are out-of-limits.
In remote operation, the EXE bit (4) is set true in the Standard-defined Event Status Byte,
and the error code number is appended to the Execution Error queue.
The error is reported by the mechanisms described in the sub-section of Chapter 4 that
deals with status reporting, and the queue entries can be read destructively as LIFO by the
Common query command EXQ?.
There is no queue when execution errors are generated during manual operation, the
description of the error being presented directly on the Menu display.
The Execution Error numbers are given below, with their associated descriptions.
1000- EXE queue empty when recalled 1021- Test not allowed when Cal enabled
1001- Option not installed 1024- Illegal Range/Input Combination
1002- Calibration disabled 1025-
uto not available in Tru ratio
1005- Input Zero not allowed in Scan 1026- Probe identity unrecognized
1007- Data entry error 1027- Input Zero not allowed in PRT
1008- Must be in AC Function 1028- Only allowed in Voltage function
1010- Divide-by-zero not allowed 1029- Scan modes not allowed in PRT
1012- No more errors in list 1030- Scan modes not allowed in ACI/DCI
1013- Data out of limit 1031- 4wV not available via rear input
1014- Illegal Range/Function combination 1032- Input Zero not allowed in Cal
1015- Command allowed only in Remote 1033- Calibration not allowed in PRT
1016- Not in Special Calibration 1034 PRT Coef Limit @ a+, b+, c+, a-, b-,
1035 Cannot edit the default PRT 1036 Block or Rolling average required
A-2
To Next Page
Loading...
