Instruction Manual

5. Diagnostics and error handling
5−15
Festo P.BE−CPX−SYS−EN en 0902e
Output bits The function number of the desired data will be specified in
binary coded form via the output bits A0 ... A12 of the I/O
diagnostic interface. The function number is accepted when
control bit A15 supplies a 1−signal.
2
1
89101112131415 01234567
Function no.
Control bit
Reserved
1 Bit number 2 Outputs
Fig.5/4: Output bits of the I/O diagnostic interface
Input bits The reply data are output by the CPX terminal via the input
bits E0 ... E7 when quitting bit E15 supplies a 1−signal.
1
89101112131415 01234567
Diagnostic data
Quitting bit
Reserved
2
1
Bit number 2 Inputs
Fig.5/5: Input bits of the I/O diagnostic interface
If control bit A15 supplies a 0−signal, quitting bit E15 will be
reset automatically and the status byte will be shown with the
diagnostic data bits.