User`s guide

144
Chapter 4 Features and Functions
Alarm Limits
• Remote Interface Operation: The following command reads data from
the alarm queue (one alarm event is read and cleared each time this
command is executed).
SYSTEM:ALARM?
The following is an example of an alarm stored in the alarm queue (if
no alarm data is in the queue, the command returns “0” for each
field).
.
The following command retrieves scanned readings and alarm data
from reading memory (the readings are not erased).
FETCH?
1 Reading with Units (31.009 °C)
2 Date (May 1, 1997)
3 Time (2:39:40.058 PM)
4 Channel Number
5 Limit Threshold Crossed (0 = No Alarm,
1 = LO, 2 = HI)
6 Alarm Number Reported (1, 2, 3, or 4)
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