7-8
Programming a Point’s Software Point Type
Overview
A point type determines the following:
•
The message displayed on the AUTOPULSE Z-28's LCD when changes occur to the state
of the point's circuit.
•
The way in which the system operates (for example, initiate an Alarm, Trouble, or
Supervisory action) when changes occur to the state of the point's circuit.
Example. Compare the FIRE Point type with the SO (normally open sprinkler monitor) point
type. When the circuit state of a point programmed with either type is Normal, the system
operates normally (i.e., no Alarm/Trouble/Supervisory messages and no system action occurs).
Notice, however, that the operation of the system is different if a Current Limited condition
occurs. When a current limited condition occurs for a device associated with the FIRE point
type, the system displays "Fire Monitor Zone" on the LCD, illuminates the FIRE LED, and
triggers any automatic and custom Alarm response (i.e., activate NACs, etc.). Contrast this
with what happens when a Current Limited condition occurs for a device associated with the
SO point type. In this case, an abnormal physical state exists. To have actions occur as a result
of the sprinkler monitor's change in state, you would need to write a Custom Control equation
that monitors the point for this circuit state and then executes specific output actions if an
abnormal physical state occurs.
Procedure
Follow these steps to define a point's software point type.
1.
Click on the point whose point type you want to program.
2.
Move to the point's Point Type field and double click with the left mouse button.
3.
Click on the appropriate point type. Refer to Table 7-3 for a quick reference of the point
Continued on next page
types; refer to Appendix A for detailed descriptions of the point types.
Table 7-2. FIRE and SO Point Types
Circuit
Status
LCD Text
System Operation
FIRE
Normal
Limited
Open
Short
Fire Monitor Zone
Fire Monitor Zone
Fire Monitor Zone
Normal
Fire Alarm
Open Trouble
Fire Alarm
SO
Normal
Limited
Open
Short
Sprinkler Monitor
Sprinkler Monitor
Sprinkler Monitor
Normal
Supervisory Abnormal
Open Trouble
Supervisory Abnormal
