Operating Instructions

Chapter 3 – Point Database
11
Siemens Industry, Inc.
Owner's Manual
125-5111
2015-06-30
Chapter 3 – Point Database
Chapter 3 presents a description of the PRC-OAVS with Pressurization Control by
Differential Flow Reset, Slow Actuation, Floating or Analog Output and Heating by BTU
Compensation point database, including point descriptors, point addresses, and a
listing of applications in which each point is found.
Descriptor
Address
1
Application
Description
CTLR ADDRESS
01
All
Identifies the controller on the FLN trunk.
APPLICATION
02
All
Identification number of the program running in the controller.
TEMP OFFSET
03
All
Room temperature offset is a user-adjustable offset that will
compensate for deviations between ROOM TMP and CTL
TEMP.
ROOM TEMP
{04}
2
All
Actual reading from the room temperature sensor.
RM PRESSURE
{05}
2931
Actual reading from the room pressure sensor.
PRESS I GAIN
06
2931
Integral feedback gain used to tune the room pressure
control.
RM STPT MIN
07
2931
The minimum temperature setpoint, in degrees, that the
controller can use from the setpoint dial. This overrides any
temperature set point from the set point dial that falls below
this minimum.
RM STPT MAX
08
2931
The maximum temperature setpoint in degrees that the
controller can use from the setpoint dial. This overrides any
temperature setpoint from the setpoint dial that falls above
this maximum.
TEMP CTL VOL
{09}
2931
Amount of supply airflow that the temperature control
sequence determines is necessary to regulate the room
temperature.
PRESS STPT
{10}
2931, 2997
The room pressure setpoint in inches water column that the
room will control to.
PRESS ALM
{11}
2931
Alarm point indicates improper room pressure control.
OCC ENA
12
2931
An analog point that determines if and what occupancy
button is enabled.
ROOM STPT
{13}
2
All
The temperature setpoint in degrees from the room
temperature sensor (not available on all temperature sensor
models).
AI 4
{14}
All
Spare analog input (0-10V or 4-20 mA).
RM PRESS AI3
{15}
2931
Room pressure sensor input (0-10V or 4-20 mA).
AI 3
{15}
2997
Spare analog input (0-10V or 4-20 mA).
VENT ALM DEL
16
2931
Delay period that prevents “nuisance alarms” on the air
change rate.
ALARM ENA
17
2931
An analog point that determines if and what alarm activates
ALARM DO7.
PRESS P GAIN
18
2931
Proportional feedback gain used to tune the room pressure
control.