Festo CPX-FB13, Manual

Page: 48 / 63

5 Diagnostics and error handling
48 Festo – P.BE-CPX-CTEL-EN – 1411a – English
5.4 Diagnostics via the CPX bus node
Malfunctions of the connected I-port devices are reported to the CPX bus node as CPX error messages.
Malfunctions of the CTEL master module itself are reported as CPX errors only if the CTEL master in the
“Manual configuration” or “Automatic configuration” operating mode is operated with at least one
device.
The following sections contain the special features of the representation for the CPX-specific dia­
gnostics options.
– Status bits (
è
5.4.1 Status bits of the CPX terminal)
– I/O diagnostics interface (
è
5.4.2 I/O diagnostic interface and diagnostic memory)
– Diagnostic memory (
è
5.4.2 I/O diagnostic interface and diagnostic memory)
5.4.1 Status bits of the CPX terminal
Tab. 5.4 shows the effect of the CTEL master module on the status bits of the CPX terminal.
Bit Diagnostic information
with 1 signal
Description Cause of error, CTEL master module
0 Error at the valve Module type in
which the error
has occurred
–
1 Error at output –
2 Error at input –
3 Error at analogue module/
technology module (func­
tion module)
Bit 3 is set for all errors of the CTEL master
module.
4 Undervoltage Error type Error number 5
1)
5 Short circuit/overload Error number 56
1)
6 Wire break –
7 Other error Error number 57, 58
1)
1) See Tab. 5.3
Tab. 5.4 Overview of status bits
Further information on the function and content of the status bits:
è
CPX system descrip­
tion (P.BE-CPX-SYS-…).
5.4.2 I/O diagnostic interface and diagnostic memory
The CTEL master module reports specific diagnostic information to the CPX bus node.
Via the I/O diagnostic interface and the diagnostic memory of the CPX terminal, it is possible to apply
the diagnostics to individual I-port devices. The I-port devices connected to a CTEL master module are
treated as input or output channels within the CPX terminal.
Detailed information on the I/O diagnostic interface and diagnostic memory:
è
CPX
system description (
è
P.BE-CPX-SYS-…).