User guide

4. Faults and diagnostics
4−3
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
4.1 Overview of diagnostics options
The CMAX supports a number of different options for diag
nostics and error handling in the CPX terminal.
An overview is shown in Tab.4/1.
Access/
Function
Diagnostics
option
Brief description Detailed
description
Local
Display on the
device
LED display, dis
play / 7−
segment display
The LEDs and the display directly indi
cate operating and fault statuses.
Fast on−the−spot" diagnosis.
CMAX system
description
CPX−MMI The CPX−MMI can be used to display the
CPX module diagnosis
1)
.
Description of the
CPX−MMI
Local
with PC (e.g.
during startup)
FCT with CMAX
plug−in
Plain−text display of all diagnostic in
formation during startup and servicing.
Full access to the diagnostic functional
ity of the CMAX.
Help for the CMAX
FCT PlugIn
CPX−FMT The CPX−FMT can be used to display the
CPX module diagnosis
1)
.
Help for the CPX−FMT
PLC
via I/O data
Module output
and input data
Diagnostic information is constantly
transferred in the SCON status byte
(e.g. actual values, WARN and FAUL T
bits etc.). Direct access to the status
(e.g. current position) and diagnostic
status via the CPX node.
Section 2.2
CPX status bits,
I/O diagnostic
interface
The CPX module diagnosis
1)
is reported
to the CPX node Optimum integration
into the CPX module concept.
Section 4.5
PLC
via communi
FHPP diagnostics
Diagnostic parameters Section 4.3
v
i
a commun
i

cations profile
Diagnostic memory Section 4.3.2
1)
The CPX diagnostics only show the fault groups of the CMAX.
Tab.4/1: Diagnostics options