Offset
Description
Values
Read/Write
Availability
VRF
RAC
ATW
178
R134 Stop Code
Read
O
179~
Reserved
189
190
YCC - Enabled Units
0~8
Read
O
191
YCC - Working Units
0~8
Read
O
192
YCC - Required Units
0~8
Read
O
?
N O T E
• Register address is calculated as: 5000+(Modbus_Id*200)+offset
• Modbus_Id as configured by configuration software
• For VRF / Package units, only the relevant data are available (heating units registers will not give any value). The situation is the same for heating
units (registers related to air/air units will not give any value).
• Availability:
-
PAC: VRF and package units.
-
RAC: Domestic units connected to the H-link via PSC-6RAD or SPX-RAMHLK
-
ATW: Air to water units.
• (1) Take into account only if it is different from zero.
• (2) Bit 0 (ON/OFF) and Bit 4 (Louver) selectable only when all centrals are actived.
• In order to full lock setting from RCS (Central shown in RCS) set this register to 31
5.3 OUTDOOR UNITS
Some state registers about outdoor unit have been added. Using these registers it is now possible to know the status of the refrigerant
cycle. Some control registers have also been added.
Offset
Description
Values
Read/Write
0
Outdoor Air Temperature
-63ºC ~ 63ºC
Read
1
Compressor Discharge Temperature
0 ~ 200 ºC
Read
2
Heating Evaporating Temperature
Read
3
Number of operating Compressor
Read
4
Discharge Pressure
0.0 ~ 5.0 MPa (0.1 MPa)
Read
5
Suction Pressure
-0.2 ~2.0MPa (0.1 MPa or 0.01MPa depending
unit)
Read
6
Total Current
0 ~ 255 A
Read
7
Total Real Frequency
0 ~ 255 Hz
Read
8
EVO1
0 ~ 100 %
Read
9
EVO2 / Hot Bypass
0 ~ 100 %
Read
10
EVB
0 ~ 100 %
Read
11
Outdoor Unit Option Enabled
0: Disable
Read/Write
1: Enable (it’s possible to use the following
options, also if the value of register 16 “Power
Level Set” is 1)
12
Noise Control Enabled
0: Disable
Read/Write
1: Enable (it’s possible to send the noise level)
13
Noise Control Level Set
0~9 (See the service manual of Outdoor unit,
function db)
Read/Write
14
Power Control Enabled
0: Disable
Read/Write
1: Enable (it’s possible to send the power level)
15
Power Level
0~100%
Read/Write
16
Power Level Set
0~100%
Read
17
Power Level Current Value
0~100%
Read
OPERATION
PMML0351A rev.4 - 04/2020
18
