Endress+Hauser Micropilot FMR20 - Diagnostics and Troubleshooting; General Errors

Micropilot FMR20 Modbus RS485 Diagnostics and troubleshooting
Endress+Hauser 35
6. Navigate to: Setup → Mapping end point
 This parameter determines the distance up to which the new mapping is to be
recorded
7. Navigate to: Setup → Present mapping
 Displays the distance up to which a mapping has already been recorded
8. Setup → Confirm distance
9. Navigate to: Setup → Level
 Shows the level L measured
10. Navigate to: Setup → Signal quality
 Displays the signal quality of the analyzed level echo
10 Diagnostics and troubleshooting
10.1 General errors
Error Possible cause Remedy
Device does not respond Supply voltage does not match the
specification on the nameplate
Apply correct voltage
The polarity of the supply voltage is
wrong
Correct the polarity
The cables do not contact the
terminals properly
Ensure electrical contact between the cable
and the terminal
Modbus communication not
working
Modbus signals connected
incorrectly
Connect the Modbus signals correctly
Access code is activated Enter access code
Device measures incorrectly Configuration error • Check and correct the parameter
configuration
• Carry out mapping
Display values not plausible
(linearization)
SmartBlue and Modbus active
simultaneously
Log off Modbus and disconnect
or
Log off SmartBlue and disconnect
(connection via SmartBlue has priority)
Linearized output value not
plausible
Linearization error Check the linearization table
Check the vessel selection in the linearization
module