engelmann HCA e2 - Description of Hint Flags; Hint Causes; Representation of Hint Flags Via Optical Reading; Radio Transmission

Page 28 of 59 Article no.: 5081200002 2022_10_17 Subject to technical change! Errors excepted.
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)
Hint flags (binary
representation)
Description
Measure/Info
H 01
Bit 0
Memory error; during access to
database an error occurred
Replace device
H 02
Bit 1
Unexpected reset by POR, RAM
-
parity, access violation
Replacement recommended
H 04 (= ANNO 10 /
ANNO 11)
Bit 2
The device has
reached the
tenth / eleventh year of
operation
Info
H 08 (= OPEN C)
Bit 3
A removal of the HCA e2 from
the heat conductor was
detected; response of
manipulation detection (plug
off detection)
Info
H 16
Bit 4
Break of one of the measuring
(temperature) sensors
Replace device
H 32
Bit 5
Short circuit of one of the
measuring (temperature)
sensors
Replace device
H 64
Bit 6
Reset by watch dog timer (WDT)
Info
H 128
Bit 7
Remote sensor is connected
Info
12.3 Hint causes
Hint flag /
hint bit
Description Effect
Possible cause
H 01 / Bit 0 Memory error; during
access to database an
error occurred.
No calculations and no storage are
carried out. The register for
consumption is not being updated.
Corrupt (defect) memory chip
H 02 / Bit 1
Unexpected reset by
POR, RAM-parity,
access violation.
The measured values and the time
since the last saving in the E
2
PROM
are lost (max. one hour). Calculations
are still being carried out. If the
unexpected reset occurs several
times, the time
offset is extended
.
Undervoltage detection, CPU
access error
H 04 / Bit 2 The device has reached
the tenth / eleventh
year of operation.
No influence on the calculation.
Device is in the tenth year of
operation / device is in the
eleventh year of
operation.
H 08 / Bit 3 A removal of the
HCA
e2 from the heat
No influence on the calculation.
Plug off or manipulation