Simplex 4007ES Panels, Руководство программиста

Страница: 137 / 168

12-3
4007ES Panel Programmer Manual ( 579-1167)
AMON Point Type, Continued
Adding a Point
Type 3. Click the Next button to view the dialog shown in Figure 12-3.
Figure 12-3. 4mA and 20mA Values Dialog
4. Enter data in the 4mA and 20mA Values dialog (refer to Table 12-2).
5. Click the Next button. A dialog similar to the one shown in Figure 12-4 appears.
Figure 12-4. Threshold Unit Values Dialog
6. In the Threshold Unit Values Dialog, you can specify up to three thresholds.
• Threshold Checkbox . Select this box if you want the system to generate an event (the
specific type of event depends on what you chose for Alarm Type in Step 2) when the
device being measured goes above the value that you specify in the Unit field.
• Unit Field . This is the value that the device must pass to trigger the alarm condition.
7. Click Finish .
Table 12-2. 4mA and 20mA Values
Field Description
Eng Unit Text
The “unit” (ppm, gal, psi, etc.) text that appears on the front panel display
when you display the current value of the device via the front panel. For
example, if a monitor device with a monitoring capability of parts per
million is attached to the ZAM, you might put ppm in this field.
4mA Value
This is the lowest value that the device reports. When the device is at this
value, it draws 4mA of current from the ZAM.
20mA Value
This is the highest value that the device reports. When the device is at
this value, it draws 20mA of current from the ZAM.