Owner's manual

110 - 8644/phoenix
SYSTEM DESCRIPTION
Warning and error messages
Warning and error messages (telegrams snet from the pressure module) may be issued as a result of
incorrect parametrization or excursions outside the limits. They contain status bytes specially defined for
the case for the case of errors, whereby status and control byte (previously sent by the master) are not
identical. In some cases, errors are signalled additionally on the local display.
Error Status byte Display Remarks
Parameter value nonvalid 0xE2 none application error
EEPROM cannot be written
on
0xE3 none system error
1)
Value above upper limit of
pressure range (10 bar)
0xE4
P o is shown continuously
application error
Value below lower limit of
pressure range (-1 bar)
0xE5 P u is shown continuously system error
1)
Value above upper
threshold value
0x42
HI and pressure value flash
alternately
warning
Value below lower threshold
value
0x43
LO and pressure value flash
alternately
warning
1)
If system errors occur frequently, a repair may be necessary.