Heinrichs Messtechnik GmbH
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OPERATING MANUAL TMU-W / UMC4
8.2.3.2
Display of system error
System errors consist of the message text “system error” and a 4-digit number in hexadecimal code. The
meaning of the individual error codes is described in the following table. If several errors occur at the same
time, the hexadecimal sum of the individual errors will be displayed. The errors are coded in such a way that
the individual errors can be easily identified. The sums are unique.
Descriptor label
(never displayed)
Constant/
display
Description
SystemfehlerDiv0
0x0001
Computing fault / Division through Null
SystemfehlerIntEEProm
0x0002
Check sum transmitter data incorrect, New initialisation
required
SystemfehlerPruefsumme
0x0004
Check sum Sensor data incorrect.
Systemfehlerleeres EEPROM
0x0008
Ext. EEPROM present but blank / unwritten
SystemfehlerEEPROM
0x0010
Save / Read Memory value failed
SystemfehlerZeitkonstante
0x0800
Initialisation of the time constants failed
SystemfehlerMesswert
0x0200
Error in the calculation of the measured values
SystemfehlerFrequenz
0x0040
Error in the frequency / density measurement
SystemfehlerParameter
0x0400
Settings inconsistent
Systemfeh-
lerRAM_pruefsumme
0x0800
Check sum in the parameter of the Custody transfer
measured value
Systemfeh-
lerFLASH_pruefsumme
0x1000
Check sum error in the program memory (Flash-PROM:
sector 0xD0000 – 0xDFFFF)
Systemfeh-
lerDSP_pruefsumme
0x0800
Check sum error during communication between DSP
and M16
SystemfehlerZaehler
0x0800
Totalisators are two-fold saved. Fault after inconsistency
during power up.
SystemfehlerWDG
0x0800
Internal Watchdog: Time limit exceeded
SytemfehlerSchreibfehler
0x0800
Memory cell in working memory (RAM) defect.
Systemfehler DSP Version
0x0080
The firmware of the DSP is not the current issue (not
aligned with that of the transmitters operating system)
SystemfehlerDSPKommu
0x2000
Communication between the DSP and microcontroller is
disrupted, processing of the measured values does not
take place.
Table 14: System errors