Siemens SITRANS T Series - Page 191

ID Symbols Message Cause/Remedy
FC Maximum supply voltage excee‐
ded
The device is operated above its speci󹪝ed supply voltage range.
Check the power supply (at the output terminals).
Reset the device or switch it o󹪜 and back on.
If the problem persists, contact Technical Support.
FU Input CPU recon󹪝guration failed An unrecoverable error occurred in the input CPU.
Reset the device or switch it o󹪜 and back on.
If the problem persists, contact Technical Support.
L - The device is write-protected by a write-protection switch.
LL - Button lock is enabled.
LP - Parameters and device functions are write-protected with a user PIN.
SA Error in EEPROM communica‐
tion
An unrecoverable error occurred in the internal communication to the
EEPROM.
Reset the device or switch it o󹪜 and back on.
If the problem persists, contact Technical Support.
Sb Volatile memory check failure
Maintenance alarm
Device electronics error.
Restart the device.
If error continues, device electronics may have a defect.
Repair is required. Contact Technical Support.
SC CRC16 error in input CPU con‐
󹪝guration
An unrecoverable error occurred in the internal input CPU.
Reset the device or switch it o󹪜 and back on.
If the problem persists, contact Technical Support.
Sn Exception error during code ex‐
ecution
An exception error occurred in the program execution of the main
CPU.
Reset the device or switch it o󹪜 and back on.
If the problem persists, contact Technical Support.
So Stack integrity error An exception error occurred in the program execution of the main
CPU.
Reset the device or switch it o󹪜 and back on.
If the problem persists, contact Technical Support.
SU Safety critical device error Check the error in menu "Diagnostics" in tab "Extended 󹪝eld device
status".
Validate the functional safety con󹪝guration or reselect normal oper‐
ation.
If the device does not display an error, repeat the safety start up.
Diagnostics and troubleshooting
11.2 Diagnostic messages
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
Operating Instructions, 05/2020, A5E41864807-AB 191