1523, 1524 Reference Thermometer
Serial Commands - Alphabetic Listing
76
Table 23 Demand Log Statistical Types
Number Type
1 Maximum
2 Minimum
3 Average
4 Standard Deviation
5 Auxiliary Value
For all query commands, when an error is detected and an error message is placed in
the queue, no response is returned for the query.
For all action commands, when an error is detected and an error message is placed in
the queue, no action is taken.
If a thermocouple is inserted into channel 2, all commands except the SYST:ERR
query command place the error ‘-221, “Settings conict”’ in the queue. This action
complements the full lockout of all the keypad keys in this same circumstance.
Error messages are retrieved from the queue using the SYST:ERR query.
Table 24 Error Messages
Number Message
0 "No error"
-100 "Command error"
-200 "Execution error"
-203 "Command protected"
-221 “Settings conict”
-350 "Queue overow"
-360 "Communication error"
-363 "Input buffer overrun"
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