Discrete Input/Output Modules
Debugging
Debugging
What’s in This Chapter
Introduction to the Debugging Function of a Discrete Module .......................... 304
Debugging Screen....................................................................................... 304
How to Access the Forcing/Unforcing Function .............................................. 306
How to Access the SET and RESET Commands............................................ 307
How to Access the Reactivation of Outputs Command ................................... 307
Applied Outputs of a Discrete Module ........................................................... 307
Subject of this Section
This section describes the debugging aspect of the application-specific discrete module for implementation.
Introduction to the Debugging Function of a Discrete
Module
Introduction
For each discrete input/output module, the Debug function enables:
• display of the parameters of each of its channels (channel state, filtering value, etc.)
• access to the diagnostics and adjustment functions for the selected channel
(channel forcing, channel masking, etc.)
The function also gives access to module diagnostics in the event of a detected error.
NOTE: This function is only available in on-line mode.
Debugging Screen
At a Glance
The debugging screen (see EcoStruxure ™ Control Expert, Operating Modes) shows, in real time, the value and state of each channel of the selected module. It also allows access to the channel commands (forcing of the input or output value, reactivation of outputs, etc.).
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Debugging
Illustration
The figure below shows a sample debugging screen.
Discrete Input/Output Modules
Description
Number
1
Element
Tabs
2
3
Module area
Channel area
The following table shows the various parts of the debugging screen and their functions.
Function
The tab in the foreground indicates the mode in progress ( Debug in this example). Every mode can be selected using the respective tab.
• Debug which can be accessed only in online mode
• Configuration
Contains the abbreviated title of the module.
In the same area there are 3 LEDs which indicate the module’s operating mode:
• RUN indicates the operating status of the module
• ERR indicates an internal event in the module
• I/O indicates an event from outside the module or an application issue
Allows you:
• by clicking on the reference number, to display the tabs:
◦ Description which gives the characteristics of the device
◦ I/O Objects, (see EcoStruxure ™ Control Expert, Operating Modes) which is used to presymbolize the input/output objects
◦ Fault which shows the device status (in on-line mode)
• to select a channel
• to display the Symbol , name of the channel defined by the user (using the variable editor)
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