5
Diagnostics
Festo – P.BE-CPX-FB37-EN – 1406NH – English
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5
Diagnostics
5.1
Summary of diagnostics options
The CPX terminal provides comprehensive and user-friendly options for diagnostics and error handling.
The following options are available, depending on the configuration:
Diagnostics op-
tion
Brief description
Benefits
Detailed description
LED display
The LEDs directly display
hardware faults, configuration
errors, bus errors, etc.
Fast “on-site” error
detection
Section 5.2
Status bits
Internal inputs, which supply
coded common diagnostic
messages; the 8 status bits
are cyclically transmitted to
the controller as “inputs” with
the normal inputs.
Fast access to error
messages, irrespective of
the module and master.
Section 5.3
I/O diagnostics
interface
Bus-independent diagnostic
interface at I/O level which
enables access to the internal
data of the CPX terminal; for
this function, 16 inputs and 16
outputs (2 byte) are available.
Detailed error recognition;
the diagnostic data can be
processed further, e.g.
with a PLC user program.
Section 5.4
Diagnostics via
EtherCAT
Diagnostics via
–
SDO access
–
Diagnostics history
–
Emergency message
Detailed error detection
Section 5.5
Diagnostics via
the operator
unit CPX-MMI
Diagnostic information can be
displayed with the operator
unit CPX-MMI in a convenient
and menu-driven manner.
Fast “on-site” error
detection
Operator unit
description
(P.BE-CPX-MMI-1-…)
Diagnostics via
the Festo
Maintenance
Tool (CPX-FMT)
The CPX-FMT offers the option
to display diagnostic
information at a PC.
Fast “on-the-spot” error
detection
Online help for the
CPX-FMT
Tab. 5.1
Diagnostics options
Note that the diagnostic information is dependent on the DIL switch settings on the bus
node, (
Section 3.2) as well as on the parameterisation of the CPX terminal.
