Instruction Manual

B. Parameters and data of the CPX terminal
B−32
Festo P.BE−CPX−SYS−EN en 0902e
B.2.6 System diagnostic data
The following system diagnostic data is available:
Function no.
System diagnostic data
1936 Status bits (error type and error source)
1937 Module number and diagnostic status
1938 Error number
Tab.B/38: Overview − Diagnostic data
System diagnostic data: Status bits
Function no. 1936
Description The 8 status bits display common diagnostic messages (global error messages).
Bits 0...3 display the source of the fault and bits 4...7 display the type of the
fault.
Bit Status bits
Fault source: Bit 0: valve
Bit 1: output
Bit 2: input
Bit 3: analogue/function
module*)
Fault type: Bit 4: undervoltage
Bit 5: short circuit/overload
Bit 6: wire fracture
Bit 7: other faults
[System diagnostics]
[Valve]
[Output]
[Input]
[Analogue/function module]
[Undervoltage]
[Short circuit/overload]
[Wire fracture]
[Other error]
Values 1 = there is a fault; 0 = no fault
*) Function modules are also known as technology modules (e.g. CPX−CP interface).
Tab.B/39: Status bits