Diagnostics, troubleshooting CM42-MAA101EBE00
18 Endress+Hauser
3.2 Diagnostic information on local display
The table of diagnostics messages is sorted by the message number. This number cannot be
changed. The "Cat." column contains the error category which is assigned at the factory .
Document all the changes you make for your measuring point in the diagnose list (→
SETUP/Sensor/Sensor diagnostics/Diagnostics list or SETUP/General settings/Device
diagnostics/Diagnostics list).
No communication in a
Multidrop network
Incorrect bus addresses Each device in the Multidrop network must have a
unique bus address, preferably in the range from 1
to 15.
Incorrect connection All the devices must be connected in parallel.
The devices in the network do not
meet the Multidrop requirements
Do not mix devices with active and passive current
outputs. Test whether the network works if you have
only connected CM42x devices.
The loop current does not
match the value on the
display
The loop current has been adjusted
by the user
Reset the loop current with FieldCare, for instance. If
you do not have a HART tool, reset the device to the
factory default settings via the local operation.
→ Diagnostics/Systemtest/Factory default
HART tag does not match
the device designation on
the display
PCS uses the short tag instead of the
long tag
Set the short tag to the desired value (only possible
via HART).
Damping cannot be set for
PV
Damping is not supported by all the
device variables
-
Not possible to read or
write a special parameter
or value
Your application Use device drivers (DD/DTM) where possible. If you
are programming your PCS yourself, you can find a
complete list of all the supported HART commands,
with the associated data content, in the document
SD01325C (on the Internet).
No. Display text Cat. Tests and/or remedial measures
003 Temp. sensor failure F – Check wiring
004 Scanning sensor C Establishing a connection to the sensor
010 Sensor initialization C Wait for the initialization to finish.
011 Sensor no communication F
– Data processing interrupted due to user interaction with DAT module
(F011)
– Check the measuring chain with a new sensor
– Check the settings for the sensor type used.
012 Sensor failure F
013 Wrong sensor type F
014 Invalid sensor data C
100 Glass impedance alarm F
– Check glass electrode for breakage and hairline cracks
– Check medium temperature
– Check electrode plug-in head for moisture and dry if necessary
Problem Possible cause Tests and/or remedial measures
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