Elapsed Time Return (Command : D L); Temperature Value (Command : D N); Lamp Fault Check (Command : D P) - HP LD4200 User Manual

Acknowledgement
[j][][Set ID][][OK/NG][Data][x]

27. Elapsed time return (Command : d l)

To read the elapsed time.
Transmission
[d][l][][Set ID][][Data][Cr]
* The data is always FF(in Hex).
Acknowledgement
[l][][Set ID][][OK/NG][Data][x]
* The data means used hours. (Hexadecimal code)

28. Temperature value (Command : d n)

To read the inside temperature value.
Transmission
[d][n][][Set ID][][Data][Cr]
* The data is always FF(in Hex).
Acknowledgement
[n][][Set ID][][OK/NG][Data][x]
* The data is 1 byte long in Hexadecimal.

29. Lamp fault Check (Command : d p)

To check lamp fault.
Transmission
[d][p][][Set ID][][Data][Cr]
* The data is always FF(in Hex).
Acknowledgement
ENWW Transmission / Receiving Protocol 55