Hontzsch ExactSonic P, Operating Instructions Manual

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4.4.3 Error handling
If an unknown command is sent to the device, if settings are to be changed without authorisation, or if the
device is otherwise unable to respond to the request, the device will respond with various error codes.
Code Designation Details
XCBM ERROR_COMMAND_BLANK_MISSING failed to check necessary blanks
XCCB ERROR_COMMAND_CHANNELBYTE channel byte missing or channel number incor-
rect
XCDF ERROR_COMMAND_DATA_FORMAT incorrect data format
XCDR ERROR_COMMAND_DATA_RANGE data out of valid range
XCDT ERROR_COMMAND_DATATYPE data type unsuitable, e.g. float expected,
String received
XCLE ERROR_COMMAND_LENGTH command lenth incorrect
XCNA ERROR_COMMAND_NOT_ALLOWED command not allowed
XCUN ERROR_COMMAND_UNKNOWN command not known
XGPE ERROR_GENERAL_PROTOCOL_ERROR general protocol error – check format
XSCI ERROR_SECURITY_CODE_INVALID security code incorrect
XSCN ERROR_SECURITY_CODE_NEW_MISMATCH security code and confirmation do not match
XSEM ERROR_COMMAND_STX_ETX_MISSING STX or ETX is missing
XSTL ERROR_SECURITY_TCP_LOCKED access via TCP blocked, see STLK
XTFD ERROR_COMMAND_TOO_FEW_DATABYTES too few data bytes received
XTMD ERROR_COMMAND_TOO_MANY_DATABYTES too many data bytes received
XUNK ERROR_UNKNOWN unknown error
4.4.4 AK commands – Query Commands (reading only)
Code Channel Description Data format
AKEN 0 device description string "ExactSonic P"
ALMT 0 last maintenance time integer value in hours.
operating time of the device, on which the last
maintenance of the device was performed.
AMFR 0 measured flow rate float value with 4 decimal places
e.g. "849.1212" – unit see EDUN
AOLT 0 operating time integer value in hours
APAB 0 absolute pressure in hPa float value with 2 decimal places
AQTB 0 quantity counter in reverse
direction float value with 6 decimal places
AQTF 0 quantity counter in forward
direction float value with 6 decimal places
ARHU 1 0 rel. humidity in % float value with 2 decimal places
AROT 0 remaining operating time until
next maintenance integer value in hours
ATEM 0 temperature in °C float value with 2 decimal places
e.g. "21.95"
AVAL 0 measured values complete flow rate (unit see EDUN), temperature, absolute
pressure and rel. humidity
1 , separated by semico-
lon
e.g. "849.1212;21.95;1013.12;70"