LG PAHCMR000 Installation Manual page 38

BMS PROTOCOL
38
Modbus points of PAHCMR000 (Return air temperature control)
Function Code
Code
0x01
0x02
0x03
0x04
0x05
0x06
Memory Map
Register Description
00001 Operating ON / OFF
00002 Reserved
00003 All Button Lock
00004 Mode Lock
00005 Fan Speed Lock
00006 Target Temp. Lock
00007 Error
00008 Reserved
10001 Comp Status
10002 Defrost Status
10003 Oil Return
10004 Reserved
10005 Reserved
10006 Reserved
10007 Reserved
10008 Reserved
30001 Error Code
30002 RA Temp.
30003 Reserved
30004 Pipe In Temp.
30005 Pipe Out Temp.
30006 Capacity
30007 Reserved
30008 Reserved
40001 Operation Mode
40002 Fan Speed
40003 Target Temp.
40004 Target Temp. Upper Range
40005 Target Temp. Lower Range
40006 Reserved
40007 Reserved
40008 Reserved
40009 Reserved
40010 Reserved
NOTE
• Configuration is that the baud rate is 9600bps, parity is none and stop bit is 1.
• To change the slave address, please see Chapter8. Main module Address Setting).
Description
Read Coils
Read Discrete inputs
Read Holding Registers
Read Input Registers
Write Single Coil
Write Single Holding Register
Function Code
1 2 3 4
• - - -
- - - -
• - - -
• - - -
• - - -
• - - -
• - - -
- - - -
- • - -
- • - -
- • - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - •
- - - •
- - - -
- - - •
- - - •
- - - •
- - - -
- - - -
- - • -
- - • -
- - • -
- - • -
- - • -
- - - -
- - - -
- - - -
- - - -
- - - -
Register
00001~00008
10001~10008
40001~40010
30001~30008
00001~00008
40001~40010
Value explanation
5 6
• - 0: OFF / 1: ON
- -
• - 0: Unlock / 1: Lock
• - 0: Unlock / 1: Lock
• - 0: Unlock / 1: Lock
• - 0: Unlock / 1: Lock
- - 0: Normal / 1: Error
- -
- - 0: OFF / 1: ON
- - 0: Normal / 1: Defrost
- - 0: Normal / 1: Oil Return
- -
- -
- -
- -
- -
- - 0~255
- - -50.0 °C~100.0 °C (x10)
- -
- - -50.0 °C~100.0 °C (x10)
- - -50.0 °C~100.0 °C (x10)
- - 0~255 [kBtu]
- -
- -
- • 0: Cooling / 2: Fan / 4: Heating
- • 1: Low / 2: Middle / 3: High
- • -10.0 °C~100.0 °C (x10)
- • 16.0 °C~30.0 °C (x10, 1 °C)
- • 16.0 °C~30.0 °C (x10, 1°C)
- -
- -
- -
- -
- -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-