Control Functions - LG PAHCMR000 Installation Manual

AHU COMMUNICATIONS KIT INSTALLATION

Control Functions

BMS Protocol - PAHCMR000 Modbus Points
Modbus Points - Function Codes
Code
0x01
0x02
0x03
0x04
0x05
0x06
Modbus Points - Memory Map
Register
00001
00002
00003
00004
00005
00006
00007
00008
10001
10002
10003
10004
10005
10006
10007
10008
30001
30002
30003
30004
30005
30006
30007
30008
40001
40002
40003
40004 Target Temp. Upper Range
40005 Target Temp. Lower Range
40006
40007
40008
40009
40010
Notes:
1. Configuration is 9600bps, parity none, and stop bit 1.
2. To change slave address, refer to main module address setting.
34
Read Holding Registers
Read Input Registers
Write Single Holding Register
Description
1
Operating On / Off ●
Reserved -
All Button Lock ●
Mode Lock ●
Fan Speed Lock ●
Target Temp. Lock ●
Error ●
Reserved -
Comp Status -
Defrost Status -
Oil Return -
Reserved -
Reserved -
Reserved -
Reserved -
Reserved -
Error Code -
RA Temp. -
Reserved -
Pipe In Temp. -
Pipe Out Temp. -
Capacity -
Reserved -
Reserved -
Operation Mode -
Fan Speed -
Target Temp. -
-
-
Reserved -
Reserved -
Reserved -
Reserved -
Reserved -
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Description
Read Coils
Read Discrete inputs
Write Single Coil
Function Code
2 3 4 5
- - - ●
- - - -
- - - ●
- - - ●
- - - ●
- - - ●
- - - -
- - - -
● - - -
● - - -
● - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - ● -
- - ● -
- - - -
- - ● -
- - ● -
- - ● -
- - - -
- - - -
- ● - -
- ● - -
- ● - -
- ● - -
- ● - -
- - - -
- - - -
- - - -
- - - -
- - - -
Register
00001~00008
10001~10008
40001~40010
30001~30008
00001~00008
40001~40010
Value explanation
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 ~ 100°C (x10)
- -
- -50 ~ 100°C (x10)
- -50 ~ 100°C (x10)
- 0~255 [kBtu]
- -
- -
● 0: Cooling / 2: Fan / 4: Heating
● 1: Low / 2: Middle / 3: High
● -10 ~ 100°C (x10)
● 15.6 ~ 30°C (×10, 1.0°C )
● (×10, 1.0°C )
15.6 ~ 30°C
- -
- -
- -
- -
- -