DK-RC-MBS-1
User’s Manual r3.3
EN
© Intesis Software S.L.U. - All rights reserved
This information is subject to change without notice
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Phone
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9/23
4.2.2
Configuration Registers
Register Address
(protocol address)
Register Address
(PLC address)
R/W Description
13
14
R/W
“Open Window” switch
-off timeout
10
▪
0..30 (minutes)
▪
Factory setting: 30 (minutes)
14
15
R
Modbus RTU baud-rate
▪
2400bps
▪
4800bps
▪
9600bps (Default)
▪
19200bps
▪
38400bps
▪
57600bps
▪
76800bps
▪
115200bps
15
16
R
Modbus Slave Address
▪
1..63
21
22
R
Max number of fan speeds
48
49
R
Switch value
49
50
R
Device ID: 0x0801
50
51
R
Software version
4.2.3
Considerations on Temperature Registers
•
AC unit temperature setpoint (R/W)
(register 4
–
in Protocol address / register 5
–
in PLC address):
This is the adjustable temperature setpoint value that must be required by the user. This
register can be read (Modbus function 3 or 4) or written (Modbus functions 6 or 16). A
remote controller connected to the Daikin indoor unit will report the same temperature
setpoint value as this register, but only will happen when no AC unit´s external
reference is provided from DK-RC-MBS-1 (see detail for register 22/23 below).
•
AC unit temperature reference (R)
(register 5
–
in Protocol address / register 6
–
in PLC address):
This register reports the temperature that is currently used by the Daikin indoor unit as
the reference of its own control loop. Depending on the configuration of the indoor unit,
this value can be the temperature reported by the sensor on the return path of the
Daikin indoor unit or the sensor of its remote controller. It is a read-only register
(Modbus functions 3 or 4).
•
AC unit external temperature reference (Modbus) (R/W)
(register 22
–
in Protocol address / register 23
–
in PLC address):
This register allows us to provide
an external temperature’s sensor
from the Modbus
side. Daikin indoor unit does not allow on devices like DK-RC-MBS-1 to provide directly
temperature to be used as a reference of the control loop of the AC indoor unit. In order
to overcome this limitation and enable the usage of an external temperature sensor
(i.e.from Modbus side), DK-RC-MBS-1 applies the following mechanism (
only if “external
temperature
’s
reference
”
is being used):
10
Once window contact is open, a count-down to switch off the AC Unit will start from this configured value.