Siemens BACNET 125-5037 - Manual (Page 36)

Point Database
26 Siemens Building Technologies, Inc.
Descriptor Address
1
Application Description
HTG l GAIN 68 All except 2560,
2597
The integral gain value for the heating temperature
control loop.
HTG D GAIN 69 All except 2560,
2597
The derivative gain value for the heating
temperature control loop.
CHK STATUS 70 All Displays the results of CHK OUT.
FLOW P GAIN 71 All except 2597 The proportional gain value for the flow control
loop.
FLOW l GAIN 72 All except 2597 The integral gain value for the flow control loop.
FLOW D GAIN 73 All except 2597 The derivative gain value for the flow control loop.
FLOW BIAS 74 All except 2597 The biasing of the flow control loop.
FLOW {75}
2
All except 2597 Indicates the actual amount of air currently passing
the air velocity sensor. The value is calculated as a
percentage based on where the value of AIR
VOLUME is in the range between 0 and CTL FLOW
MAX.
CTL FLOW MIN {76} 2 All except 2597 The active minimum flow used as a limit for the flow
control loop. This value is the same as CLG FLOW
MIN if the controller is in cooling mode, or is the
same as HTG FLOW MIN if the controller is in
heating mode, unless it is overridden.
CTL FLOW MAX {77} All except 2597 The active maximum flow used as a limit for the flow
control loop. This value is the same as CLG FLOW
MAX if the controller is in cooling mode, or is the
same as HTG FLOW MAX if the controller is in
heating mode unless, it is overridden.
CTL TEMP {78} All except 2597 The temperature used as input for the temperature
control loops. This value is the same as the value in
ROOM TEMP and RM TEMP OFFSET unless it is
overridden.
CLG LOOPOUT {79} All except 2597 The cooling temperature control loop output value in
percent.
HTG LOOPOUT {80} All except 2560,
2597
The heating temperature control loop output value
in percent.
AVG HEAT OUT {81}
2
2562, 2564, 2566 This point is used to determine what stages of
electric heat are used for a given loop output value.
The ranges for the value are determined by the
number of stages used: 0 to 100 for 1 stage of
electric heat, 0 to 200 for 2 stages of electric heat,
and 0 to 300 for 3 stages of electric heat.
With electric heat, this value is equal to: HTG
LOOPOUT × STAGE COUNT.
STAGE MAX 82 2562, 2564, 2566 The value, in percent, which the heating loop must
exceed for the electric heat to be ON for the full duty
cycle (STAGE TIME).
STAGE FAN 83 2565, 2567 The valve must be opened greater than this value
before the fan will turn ON.