12.1.2 Representation of hint flags via optical reading / radio transmission
In the case of optical and / or radio readout, the indication bits are represented in the following form: Bit x:
Description text (for example bit 3: sabotage contact released, drop detected).
In addition to the hint flag, the date and time (time stamp) are stored on the first occurrence of a hint. If the same
hint occurs, the date is not changed. This makes it possible to see when a hint has occurred first. If another, other
hint appears, the date of this new hint is also stored.
The hint flags are displayed individually in the order of their occurrence. The date is not stored by the hints "Bit 2"
(ANNO 10 / ANNO 11) and "Bit 7" (remote sensor is mounted).
In the case of optical readout and read-out by radio, the corresponding hint bit is always transmitted!
Analogous to the description of the message codes in the display (see 12.1.1), it is recommended to replace the
device when "bit 1" occurs. When the notes "Bit 0" or "Bit 4" or "Bit 5" appear, the device must be replaced, as
no measured value calculation and measured value storage take place.
12.2 Description of hint flags
Hint flags (decimal
representation)
H 01
H 02
H 04
(= ANNO 10 /
ANNO 11)
H 08
(= OPEN C)
H 16
H 32
H 64
H 128
12.3 Hint causes
Hint flag /
Description
hint bit
H 01 / Bit 0
Memory error; during
access to database an
error occurred.
H 02 / Bit 1
Unexpected reset by
POR, RAM-parity,
access violation.
H 04 / Bit 2
The device has reached
the tenth / eleventh
year of operation.
H 08 / Bit 3
A removal of the
HCA e2 from the heat
Page 28 of 59
Article no.: 5081200002
Hint flags (binary
Description
representation)
Bit 0
Memory error; during access to
database an error occurred
Bit 1
Unexpected reset by POR, RAM-
parity, access violation
Bit 2
The device has reached the
tenth / eleventh year of
operation
Bit 3
A removal of the HCA e2 from
the heat conductor was
detected; response of
anipulation detection (plug
m
off detection)
Bit 4
Break of one of the measuring
(temperature) sensors
Bit 5
Short circuit of one of the
measuring (temperature)
sensors
Bit 6
Reset by watch dog timer (WDT) Info
Bit 7
Remote sensor is connected
Effect
No calculations and no storage are
carried out. The register for
consumption is not being updated.
The measured values and the time
since the last saving in the E
are lost (max. one hour). Calculations
are still being carried out. If the
unexpected reset occurs several
times, the time offset is extended.
No influence on the calculation.
No influence on the calculation.
2022_10_31
Measure/Info
Replace device
Replacement recommended
Info
Info
Replace device
Replace device
Info
Possible cause
Corrupt (defect) memory chip
Undervoltage detection, CPU
2
PROM
access error
Device is in the tenth year of
operation / device is in the
eleventh year of operation.
Plug off or manipulation
Subject to technical change! Errors excepted.