Festo Fieldbus - Festo CP-FB5-E Manual

3. Diagnosis

3.3.1 Festo fieldbus

Bit-Nr.
Diagnostic information
Signal status
Meaning
Fig. 3/3: Festo diagnostic byte
3-10
All diagnostic information can be evaluated directly with a
Festo PLC. An error list is created in the master for this pur-
pose. All diagnostic bits are included in this error list and are
continually updated.
Structure of the diagnostic byte
7 6 5
KCP Vval Vtol
0/1 0/1 0/1
Signal status "0": no fault
Signal status "1": fault
The diagnostic byte is interrogated via function module 44 or
in the command interpreter (CI). Further information can be
found in the PLC manual for your controller.
4 3 2
Vsen Voff SC/O
0/1 0/1 0/1
Festo P.BE-CP-FB5-E-EN en 0112a
1 0
ACP —
0/1 1