User Guide

Program Methodology—At (@) Priority Status Indicators
Siemens Building Technologies, Inc. 1-69
Table 1-8. System Variables for
Priority Monitoring.
Priority Priority syntax
Operator
@OPER
Smoke
@SMOKE
Emergency
@EMER
Peak Demand Limiting
@PDL
No priority (PPCL)
@NONE
Example
120 OFF(@OPER,SFAN,RFAN)
When this command is executed, SFAN and RFAN are shut OFF
and their priorities are changed to OPER. An operator interface
command (such as OIP) is not needed to change the point priority.
Pre-APOGEE Firmware
The RELEAS command quickly changes the priority of a point or
group of points. With pre-APOGEE firmware, you have two options
for changing point priorities with the RELEAS command:
• Release the point to NONE priority.
• Release the point from a specific priority to NONE priority
Releasing the Point to NONE Priority
The first option allows you to release points to the NONE priority. In
the following example, the points FAN1 and FAN2 are released to
NONE priority.
160 RELEAS(FAN1,FAN2)
APOGEE PPCL User’s Manual
1-70 Siemens Building Technologies, Inc.
Releasing the Point from a Specific Priority to NONE Priority
The second option allows you to release points at a specific priority
to the NONE priority. In the following example, any of the points
included in the RELEAS command that have a priority of EMER or
lower, will be released to the NONE priority:
300 RELEAS(@EMER,FAN1,FAN2)
Note that if the point specified is at an equal or lower priority than
EMER, it will also be released to NONE. In other words:
If the point
specified is at
this priority…
Using this
pre-APOGEE
command…
Changes the
priority to…
OPER NONE
SMOKE NONE
EMER NONE
PDL
RELEAS(@OPER … )
NONE
OPER OPER
SMOKE NONE
EMER NONE
PDL
RELEAS(@SMOKE … )
or
RELEASE(@EMER … )
NONE
OPER OPER
SMOKE SMOKE
EMER EMER
PDL
RELEAS(@PDL … )
NONE
For a complete description of the RELEAS command, see Chapter 3
– Syntax.