HMS Networks Intesis IN485FGL001I000 User Manual page 72

IN485FGL001I000 Gateway
NOTE
The names of the Modbus registers provided in this section are for reference purposes only; pay
attention chiefly to their numerical addresses.
Table 26. Objects and registers dedicated to temperature signals and to the Virtual Temperature function
BACnet object
Setpoint_status (Analog Input)
Setpoint_command (Analog
Output)
RoomTemperature_status
(Analog Input)
RoomTemperature_command
(Analog Output)
VirtualTemperatureActive
(Binary Input)
UserSetpoint_status (Analog
Input)
NOTE
* This register has been available since firmware version 0.8.
The BACnet object RoomTemperature_command (Analog Output) / Modbus register Input sensor
temperature (protocol address 22 / PLC address 23) has no effect when using a communication
accessory to connect the gateway and the Fujitsu AC unit.
NOTE
** This Modbus register may be missing in your gateway since it is only implemented in the
485 series. However, the Virtual Temperature function is not dependent on this register, and it is
available in your gateway if its order code is listed in the note at the beginning of this section.
NOTE
As explained in this topic, and due to the Virtual Temperature function, Fujitsu cannot guarantee
that the value reported by the RoomTemperature_command object/Input sensor temperature
register is consistently equal to the actual room temperature.
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Modbus register Function when the Virtual
Temperature function is inactive
AC real setpoint (R) It indicates the temperature setpoint
(protocol address 23 / sent to the indoor unit.
PLC address 24)
It will report the same value
as the value introduced in
the Setpoint_command/AC unit
temperature setpoint.
Temperature (user) It is used to request the temperature
setpoint (R/W) setpoint from the BMS side.
(protocol address 4 /
It will report the same value as a
PLC address 5)
wired remote controller connected to
the indoor unit (if available).
Indoor unit reference It indicates the ambient temperature
temperature (R) perceived by the sensor from the AC
(protocol address 5 / system side (the sensor inside the
PLC address 6) indoor unit or inside the wired remote
controller, if available).
Input sensor It is used to activate the Virtual
temperature (R/W) Temperature function by writing the
(protocol address 22 / value reported from a BMS side sensor.
PLC address 23)*
Virtual Temp Active It reports a value of 0
(R) (protocol address
129 / PLC address
130)**
Temperature (user) It indicates the temperature setpoint
setpoint (R/W) requested from the BMS side.
(protocol address 4 /
PLC address 5)
Considerations on Temperature Signals
Function when the Virtual Temperature
function is active
It indicates the recalculated temperature
setpoint sent to the indoor unit after the
gateway applies the S = T – (T
AC AC BMS
S ) formula.
BMS
It may report a value different
from the value introduced in the
Setpoint_command/AC unit temperature
setpoint.
It is used to request the temperature
setpoint from the BMS side.
It may report a value different from
the one reported by a wired remote
controller connected to the indoor unit
(if available).
It indicates the ambient temperature
perceived by the sensor from the AC
system side (the sensor inside the
indoor unit or inside the wired remote
controller, if available).
It indicates the temperature reported
from a BMS side sensor.
It reports a value of 1
It indicates the original temperature
setpoint requested from the BMS side.
USER MANUAL Version 1.0.9
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