Stanford Research Systems SIM918 Operating And Service Manual page 53

3.4 Commands
LEXE?
Example:
LCME?
Example:
SIM918 Precision Current Preamplifier
Execution Error
Query the Last Execution Error code. A query of LEXE? always
clears the error code, so a subsequent LEXE? will return 0. Valid
codes are:
Value Definition
0 No execution error since last LEXE?
1 Illegal value
2 Wrong token
3 Invalid bit
16 Reference clock inactive
*STB? 12; LEXE?; LEXE?
3
0
The error (3, "Invalid bit") is because *STB? only allows bit-specific
queries of 0–7. The second read of LEXE? returns 0.
Command Error
Query the Last Command Error code. A query of LCME? always
clears the error code, so a subsequent LCME? will return 0. Valid
codes are:
Value Definition
0 No command error since last LCME?
1 Illegal command
2 Undefined command
3 Illegal query
4 Illegal set
5 Missing parameter(s)
6 Extra parameter(s)
7 Null parameter(s)
8 Parameter bu er overflow
10 Bad integer
11 Bad integer token
12 Bad token value
14 Unknown token
*IDN
LCME?
4
The error (4, "Illegal set") is due to the missing "?".
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