LG FLATRON M4214CC Owner's Manual page 73

RS-232C
Transmission / Receiving Protocol
30. Elapsed time return(Command: d l)
► To read the elapsed time.
Transmission
[d][l][ ][Set ID][ ][Data][x]
* The data is always FF(in Hex).
Acknowledgement
[l][ ][Set ID][ ][OK/NG][Data][x]
* The data means used hours.
(Hexadecimal code)
31. Temperature value (Command: d n)
► To read the inside temperature value.
Transmission
[d][n][ ][Set ID][ ][Data][x]
* The data is always FF(in Hex).
Acknowledgement
[n][ ][Set ID][ ][OK/NG][Data][x]
* The data is 1 byte long in Hexadecimal.
32. Lamp fault Check(Command: d p)
► To check lamp fault.
Transmission
[d][p][ ][Set ID][ ][Data][x]
* The data is always FF(in Hex).
Acknowledgement
[p][ ][Set ID][ ][OK/NG][Data][x]
Data 0: Lamp Fault
1: Lamp OK
2: N/A(DPM/Power Off)
Controlling Multiple Set
A19