Campbell SAT ARGOS Manual de usuario Pagina 214

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ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 206
You may configure as many as 4 alarm messages
in your ZENO
®
-3200.
11.1. CONFIGURING AN ALARM CONDITION
Configuring an alarm condition can be done by carrying out the following steps:
1. Identify the one or more parameters that constitute an alarm condition, including the valid ranges of
the parameters.
2. Determine what sensor readings are required to measure the parameters.
3. Determine what processes are needed to process the parameters, including the Alarm Processes.
One example of an alarm condition is a ZENO
®
-3200 under-voltage. If you are powering your ZENO
®
-
3200 with a battery, you will probably be monitoring the battery voltage. As a battery discharges through
use over time, its voltage will drop. You can configure the ZENO
®
-3200 to automatically alert you that
its battery is discharging by monitoring how low the battery voltage has dropped. for example, you might
want the ZENO
®
-3200 to alert you that the battery voltage has dropped below 11 VDC. You have now
defined an alarm condition and a valid range.
Therefore, to monitor the battery voltage, you can configure a 12-bit ADC Sensor Record to monitor the
internal battery voltage.
230
This is the only reading needed for this example alarm condition.
To set an alarm condition, you need to set up an appropriate alarm process (or processes). Reviewing the
available processes listed in Appendix D shows that the best process to use is the Alarm Process
(Category 3, Process Number 3):
PROCESS MENU
(Cn/m) Change Item n To Value m (Jn) Jump To Record n
(A) Insert After This Record (N) Go To Next Record
(B) Insert Before This Record (P) Go To Previous Record
(X) Cut Record to Clipboard (XA) Delete ALL Records
(C) Copy Record To Clipboard (Z) Zeno Program Menu
(V) Paste Record From Clipboard (H) Help
(Sn/m) Search Item n for Value m
Process Items for Record 3 of 3:
Item 1: Process Category 3 : Alarm
Item 2: Process Number 3 : Alarm Process
Item 3: User-defined Process Name
Item 4: Input for Data S0.1
Item 5: Alarm Setpoint 0
Item 6: Alarm Reset 0
Item 7: BIT Flag Number (1 - 31) 0
Item 8: Digital Output Channel 1 0
Item 9: Digital Output Channel 2 0
Item 10: Switched Voltage 0
>
230
Section 3.2.3 describes this procedure.
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