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5.
COMMUNICATION PROTOCOL
Use LG RS485 protocol (Open protocol). Contact LG representatives.
Computer or other hosts can be Master and inverters Slave. Inverter responds to Read/Write
command from Master.
5.1.
Supported command codes
Function Code
'R'
'W'
'X'
'Y'
(Important: Use ASCII CODE (Capital Letter).)
5.2.
BroadCast Function
Use it to send command to all inverters at the network.
All inverters respond when command is sent from Station # 255.
5.3.
Error Code
Error Code
ILLEGAL
FUNCTION
ILLEGAL DATA
ADDRESS
ILLEGAL DATA
VALUE
WRITE MODE
ERROR
FRAME ERROR
TIME OUT
ERROR
DPRAM OFF LINE
INVALID ID
NUMBER
UNDEFINED
CONDITION
Morek IT OÜ, Rauna 24, 76506 Saue Harjumaa, Estonia. www.morek.eu Tel. +372 604 1423 Fax +372 604 1447 morek@morek.eu
Display
IF
Invalid command received.
Invalid parameter address received.
IA
Monitor executed without resistoring monitor.
ID
Invalid data received.
WM
Read Only or not-programmable during run.
FE
Frame size, internal Num or Sum is different.
TO
DPRAM communication failed for the set time.
DO
DPRAM is Off-line.
IN
Different address received.
UC
Undefined condition received.
Name
Parameter Read
Parameter Write
Monitor Register
Monitor Execution
Description
6
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