Festo CPX-FB14 Electronic Manual page 126

3. Diagnosis
Byte 0 Byte 1
Fault code
Index 1001
Bit Meaning
*)
0 Generic Error
*)
1 Current
*)
2 Voltage
3 –
*)
4 Communication fault
5...6 –
*)
7 Manufacturer-specific
*)
= Bit is used by CPX terminal
Tab. 3/8: Fault register (index 1001 with bit assignment as per DS 301/401)
3-18
Byte 2 Byte 3 Byte 4
Fault Status
CPX-
register bits
module no.
Index 1002 (Manufacturer Status Register)
Explanation
Bit is set for every fault
– Short circuit/overload in sensor supply
– Short circuit/overload at the outputs
– V (undervoltage at outputs)
OUT
– V (undervoltage at valves)
VAL
– Load voltage failure at CPX input/output module
–
– Node guard, Heart beat, CAN fault
–
– Wire fracture
– Other faults
Further diagnostic information is provided by the CPX ter-
minal in bytes 3...6 of the Emergency Object (Manufacturer
Status Register, index 1002).
Byte 5 Byte 6 Byte 7
Additional
CPX- Reserved
fault
fault no.
information
en 0206NH
Festo P.BE-CPX-FB14-GB