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Gated Installer Configuration
After the installer enables BACnet in the installer menu, they will
have the opportunity to also select BACNET CONFIG WRITE.
Enabling BACNET CONFIG WRITE allows the installer to write
to all the installer configuration BACnet Objects (AV5XX,
BV5XX and MSVXX) remotely over the BACnet network. When
the installer has completed configuring the device, they may write
Inactive to CFG_WR_EN (BV511) to disable writes to installer
configuration objects.
NOTE: Re-enabling BACNET CONFIG WRITE must be
done from the installer menu at the thermostat.
Multiplexed Inputs
Each analog input has a corresponding multiplexer that is used to
select between the measured input value (AI1 in the Fig. A) and a
network object value (AV1 in the Fig. A). The output of the
multiplexer (AV2 in the Fig. A) is used in the equipment control
algorithms. When the gate object (BV1 in the Fig. A) is active the
network object's value is passed on to the output of the
multiplexer, when the gate object is inactive the measured input
value is passed on to the output of the multiplexer. The gate object
value is a configuration object and is backed up to non-volatile
memory. If the network object's value has not been written to
within 5 minutes, the output of the multiplexer defaults to the
measured input value.
MEAS. INPUT
INPUT
OBJECT
ID_SPACE_TEMP
Space Temp
(AI100)
Space
ID_SPACE_HUM
Humidity
(AI101)
Network Controlled Outputs
The thermostat has 3 outputs (Y3, W2, and OB) that can be
assigned to optional equipment when the default assignment is
not required for the equipment configuration. When any of these
3 outputs are left unassigned, they can be configured to be net-
work controlled outputs by changing their mode from
© 2024 Carrier
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500408-01
APPENDIX E: BACNET OBJECT NOTES
OBJECT USED
NETWORK
FOR EQUIP.
OBJECT
CONTROL
NET_SP_TEMP
SP_TEMP_CT
(AV103)
RL (AV104)
NET_SP_HUM
SP_HUM_CTR
(AV105)
L (AV106)
Fig. A — Multiplexed Inputs
Printed in U.S.A.
Form No. IIK-33WIFISTATFX-01
DISABLED/OFF
to
ENERGIZED_INACTIVE in the installer menu or through the
network configuration objects. There are 3 BV objects that con-
trol whether an output is active or inactive. These objects must
be repeatedly written to over the network within the time config-
ured in the GP_OUT_TIMEOUT (MSV508) configuration ob-
ject or the output goes to the configured inactive state. The fol-
lowing truth table describes the action of the physical outputs as
they relate to the controlling object, Mode Object, and the time-
out status.
MODE
CONTROLLING
OBJECT
OBJECT VALUE
VALUE
*
DISABLED
ENERGIZED_A
*
CTIVE
ENERGIZED_I
*
NACTIVE
ENERGIZED_A
Inactive
CTIVE
ENERGIZED_I
Inactive
NACTIVE
ENERGIZED_A
Active
CTIVE
ENERGIZED_I
Active
NACTIVE
The following table shows the three outputs and the objects that
configure and control them.
CONTROLLING
MODE OBJECT
OBJECT
NET_GP_Y3_OUT
NET_GP_Y3_MODE
(BV211)
(MSV509)
NET_GP_W2_OUT
NET_GP_W2_MODE
(BV212)
(MSV510)
NET_GP_OB_OUT
NET_GP_OB_MODE
(BV213)
(MSV511)
Pg 28
ENERGIZED_ACTIVE
PHYSICAL
TIMED OUT?
OUTPUT
STATE
*
De-energized
Yes
De-energized
Yes
Energized
No
De-energized
No
Energized
No
Energized
No
De-energized
PHYSICAL
OUTPUT
Y3
W2
OB
2-24
Replaces: NEW
or
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