Diagnostics And Error Handling; Overview - Festo CPX Series Description

5. Diagnostics and error handling

5.1

Overview

Diagnostics option
On-site LED
diagnostics
Operator unit
(MMI)
Diagnostics System status
via bus query (status
node bits query)
I/O diagnostics
interface
Fieldbus-
specific
diagnostics
Tab. 5/1: Diagnostics options
Festo CPX-F8DE-P-EN en 2005b English
The CPX terminal offers extensive options for diagnostics and
error handling. The input module supports the following
diagnostic and error handling facilities:
Brief description
The LEDs on the input module display errors in
the input channel and modules.
Diagnostic information from the input module
can be displayed conveniently on the operator
unit with menu-guided navigation.
8 status bits of the CPX terminal display
common diagnostics messages
(global error messages)
CPX-F8DE-P reports specific malfunctions to
the CPX bus node as error numbers. The I/O
diagnostic interface enables these data to be
queried.
Depends on the bus node (e.g. DPV1)
Reported errors can be evaluated, depending on the bus
protocol used. The errors are indicated on-site via the error
LEDs and, if necessary, can be evaluated with the operator
unit.
Information about the diagnostic options on the complete
CPX terminal and/or all modules can be found in the CPX
system description and/or in the description of the bus node.
Note
Ensure that the diagnostic messages cannot be evaluated
for safety-related measures.
Reference
è Chapter 5.3
è Chapter 5.4.1
and description of
the operator unit
è CPX system
description and
description of the
bus node
è Tab. 5/2
è CPX system
description
è Description of
the bus node
5-3