Fluke 8508A, Service Manual, Page: 105 / 120

Maintenance
Self Test
4
4-19
Table 4-8. Execution Errors
1000-
EXE queue empty when recalled
1024-
Illegal Range/Input Combination
1001-
Option not installed
1025-
Auto not available in Tru ratio
1002-
Calibration disabled
1026-
Probe identity unrecognized
1005-
Input Zero not allowed in Scan
1027-
Input Zero not allowed in PRT
1007-
Data entry error
1028-
Only allowed in Voltage function
1008-
Must be in AC Function
1029-
Scan modes not allowed in PRT
1010-
Divide-by-zero not allowed
1030-
Scan modes not allowed in ACI/DCI
1012-
No more errors in list
1031-
4wV not available via rear input
1013-
Data out of limit
1032-
Input Zero not allowed in Cal
1014-
Illegal Range/Function combination
1033-
Calibration not allowed in PRT
1015-
Command allowed only in Remote
1034-
PRT Ceof Limit @ a+, b+, c+ a-, b-, c-
1016-
Not in Special Calibration
1035-
Cannot edit the default PRT
1021-
Test not allowed when Cal enabled
1036-
Block or Rolling average required
Device Dependant Errors
Device-dependent errors are associated mainly with test and calibration operations. A
Device-Dependent Error is generated if the device detects an internal operating fault
(e.g., during self-test). The DDE bit (3) is set true in the Standard-defined Event Status
Byte, and the error code number is appended to the Device-Dependent Error queue.
In remote mode operations, the error is associated with status reporting, and the queue
entries can be read destructively as LIFO by the Common query command DDQ?.
In local mode operations, the DDE status is checked at the end of the operation (e.g., Cal,
Zero, Test). If true , an error has occurred, and the content of the last entry in the queue is
displayed on the front panel.
If both bus and front panel users attempt to read the queue concurrently, the error data is
read out destructively on a first-come, first-served basis. Thus one of the users cannot
read the data on one interface as it has already been destroyed by reading on the other.
This difficulty should be solved by suitable application programming to avoid the
possibility of a double readout. Ideally the IEEE 488 interface should set the instrument
into REMS or RWLS to prevent confusion. The bus can ignore the queue, but the front
panel user will have to read it to continue.
There are three categories of Device Dependant Errors: Correction Errors, Corruption
Errors, and Miscellaneous Errors. The errors that may occur in each category are
described in the Table 4-9.