Festo CTEU-EC - Error Codes

3. Diagnosti cs
3-13
Festo P.BE-CTEU-EC-OP+MAINT-EN en 1208NH
3.3.4 Error codes
Error code
(hex.)
Explanation Rema rk/possible causes
Byte 0 Byte 1
00 00 No error –
00 12 Invalid I/O c onfiguration • Compare I/O data lengths
FF 00 Configuration error – Device replaced during operation
– Configuration error during operation
– No device at either I-port
FF 70 Built-in self test failed • Restart device
• Contact support
FF FF Other diagnostic message – Diagnostic bytes from I-port
telegram present
(I -port event codes,
 Tab. 3/11)
Tab. 3/9: Bus node error codes