Motorola R-2550 Programming Reference Manual page 210

E?
Description:
Query Syntax:
Response Syntax:
Motorola Communications Analyzer
The E? query returns the next error message from the error queue and clears the Error
Event Status Register.
Error Description
01 Invalid command or query mnemonic (prefix)
02 Invalid command or query mnemonic (suffix)
03 Numeric data too large
04 Numeric data too small
05 String data field too large
Inquiry without measurement command
00
06 String date field too small
07 Invalid string field
08 Invalid input data
09 Invalid command or query for R-2600 mode
10 Invalid exponent format
11 Exponent out of range
12 Invalid mantissa format
13 Transmission error (RS-232 only)
14 Input Buffer overflow (RS-232 only)
15 Empty command
16 Output Buffer overflow
Voltmeter out of range
17
No input signal
18
Frequency counter measurement invalid
19
20 Frequency error measurement out of range
21 Monitor modulation measurement out of range
22 Input signal too high
23 Input signal too low
24 Invalid measurement reading
25 In-line Wattmeter error
26
27
Thermal Power too low (LPA Option only)
28 Thermal Power Meter not zeroed (LPA Option only)
Unable to zero Thermal Power Meter (LPA Option only)
29
98 Error queue overflow
99 Error queue empty
E?
ERROR XX
Error Query