Operating Instructions

Chapter 3 – Point Database
18
Siemens Industry, Inc.
Owner's Manual, Apps 2920/2926
125-5109
2015-06-30
Descriptor
Address
1
Application
Description
AO2
{55}
2997
Control signal for Venturi Supply Valve (0 - 10V).
GEX DMPR AO3
{56}
2920, 2926
Control signal for Venturi General Exhaust Valve (0 - 10V).
AO3
{56}
2997
Control signal for Venturi General Exhaust Valve (0 - 10V).
VALVE CLOSED
57
2920, 2926
Setup point. Tells the LCM what voltage fully closes the reheat
valve.
VALVE OPEN
58
2920, 2926
Setup point. Tells the LCM what voltage fully opens the reheat
valve.
DISCH MAX
{59}
2926
Maximum discharge temperature setting.
GEXDUCT AREA
60
All
Internal cross-sectional area of the general exhaust duct where
the flow sensor is installed.
DUCT AREA 2
60
2997
Area, in square feet (square meters), of the duct where the air
velocity sensor is located. This is a calculated value (calculated
by the field panel or computer being used) that depends on duct
shape and size. It is used in calculating all points in units of
CFM, CF, LPS and L.
OTHER SUP
{61}
2920, 2926
Value of any supply airflows not connected to the LCM. Must be
entered to the controller to account for flows it cannot detect.
CAL SUP VLV
{62}
2920, 2926
YES commands the controller to go through calibration
sequence for the supply Ventrui air valve. CAL SUP VLV
automatically returns to NO after the calibration sequence is
completed. Valid input: YES or NO.
ROOM P GAIN
63
2920, 2926
Proportional feedback gain used to tune the room temperature
control.
ROOM I GAIN
64
2920, 2926
Integral feedback gain used to tune the room temperature
control.
UOC GEX MAX
{67}
2920, 2926
Maximum general exhaust in unoccupied mode.
UOC GEX MIN
{68}
2920, 2926
Minimum general exhaust in unoccupied mode.
TOTL SUPPLY
{69}
2920, 2926
Point 35 + Point 61. This is the measured value of the airflow
delivered to the room by the supply terminal, plus the value of
any supply airflows not connected to the LCM.
SUP P GAIN
70
2920, 2926
Feedback gain. Used to tune supply flow control.
UOC SUP MAX
{71}
2920, 2926
Maximum supply in unoccupied mode.
UOC SUP MIN
{72}
2920, 2926
Minimum supply in unoccupied mode.
CTL STPT
{73}
2920, 2926
The setpoint for the Room Temperature PID Loop.
HOOD VOL
{74}
2920, 2926
The airflow signal from the fume hood(s).
DISCH STPT
{75}
2926
Discharge temperature setpoint.
VOLUME STATE
76
2920, 2926
Determines type of control, VAV or CV, during occupied and
unoccupied modes.
DO 6
{77}
All
Digital output 6 controls a 24 Vac load with an ON or OFF
status. If Motor 3 is enabled, then DO 5 is coupled with DO 6 to
control an actuator.
CTL TEMP
{78}
All
The temperature input for the Room Temperature PID Loop.
TEMP LOOPOUT
{79}
2920, 2926
The value calculated by the room temperature PID algorithm. It
indicates the thermal load on the room.