Liquisys M CLM223/253 Diagnostics and troubleshooting
Endress+Hauser 87
Error Possible cause Tests/remedial action Tools, spare parts
Current output
table is not
accepted
Value interval too small Select practical intervals
No temperature
output signal
Device does not have a
second current output
Check version using nameplate, if
necessary replace the LSCH-x1
module
LSCH-x2 module, see the
"Spare parts" section
Device with PROFIBUS-
PA
PA device has no current output!
Chemoclean
function not
available
No relay module (LSR1-
x) installed or only
LSR1-2 available
Additional function not
enabled
Install LSR1-4 module.
Chemoclean is enabled using the
release code supplied by the
manufacturer in the Chemoclean
retrofit kit.
To check the version, see the
nameplate
LSR1-4 module, see the
"Spare parts" section
Plus Package
functions not
available
Plus Package not enabled
(enable by entering a
code which depends on
the serial number and
which is supplied by E+H
when a Plus Package is
ordered)
• For Plus Package retrofit: code
is supplied by E+H → enter this
code.
• After replacing a defective
LSCH/LSCP module: first enter
device serial number manually
(see nameplate), then enter the
existing code number.
For a detailed description,
see the "Replacement of
central module" section.
No HART
communication
No HART central module Verify using nameplate: HART = -
xxx5xx and -xxx6xx
Upgrade to LSCH-H1 / -
H2
No or incorrect DD
(device description)
For further information, see
BA00208C/07/EN, "HART field
communication with Liquisys
CxM223/253”
HART interface missing
Current output < 4 mA
Load too small (must be
> 230 Ω)
HART receiver (e.g. FXA
191) not connected via
load but via power supply
Incorrect device address
(addr. = 0 for single
operation, addr. > 0 for
multidrop operation)
Line capacitance too high
Interference on line
Several devices set to
same address
Assign addresses correctly No communication
possible if several devices
set to the same address
No PROFIBUS
communication
No PA/DP central
module
Verify using the nameplate: PA =
-xxx3xx /DP = xxx4xx
Upgrade to LSCP module,
see the "Spare parts"
section
Incorrect device software
version (without
PROFIBUS)
For further information, see
BA00209C/07/EN "PROFIBUS
PA/DP - Field communication for
Liquisys CxM223/253".
Information about
PROFIBUS configuration is
provided in Technical
Information TI00260F,
while detailed information
about instrumentation
and accessories is provided
in Operating Instructions
BA00198F
With Commuwin (CW) II:
CW II version and device
software version
incompatible
No or incorrect DD/DLL
Incorrect baud rate
setting for segment
coupler in DPV-1 server
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