Description of the Debug Screen

At a Glance

In Online mode, process control debugging screens are used to:

display and animate the loop diagram
display process alarms and channel faults
modify adjustment parameters for each function
simulate input interface values
add, delete, and replace calculation functions
modify configuration parameters of each PID reverse/forward mode-type function
modify loop controller operating modes

Illustration

The following figure shows a debugging screen.

Description

The following table describes the main components of the Process Control Debugging screen, as well as their respective function.

Address	Component	Function
1	Tabs	The foremost tab indicates the current mode (Debug, in this instance). Select each mode by clicking on the corresponding tab. The following modes are available: Configuration, Debugging, accessible only in Online mode, WARNING displays warning messages pertaining to the process control loop status, Diagnostics, (Default) accessible only in Online mode.
2	Module area	Displays the abridged module indicator. There are three indicators in the same zone that provide the status of the PLC in online: RUN indicates the status of the PLC, ERR indicates a fault on the processor or embedded devices. I/O indicates a fault from a module, channel or configuration.
3	Channel area	Is used: By clicking on the reference number, to display the tabs: Description which gives the characteristics of the device. I/O Objects which is used to presymbolize the input/output objects. Fault which shows the device faults (in online mode). To select the loop controller, To display the Symbol, name of the channel defined by the user (using the variable editor).
4	Global Parameters area	Lists the general settings (or parameters) associated to the channel : Function: Process Control function associated to the loop. This parameter is invariable. Task: defines the MAST or FAST task through which the channel's implicit exchange objects will be exchanged. This parameter is invariable. The Alarms area. If the alarm functions are defined, displays all loop-associated alarms.
5	Debug area	Allows viewing of configured functions and block diagram. This area comprises two sections: one or several tabs, showing those functions already configured. Their associated parameter values are animated. They may be modified in Online mode only, The block diagram shows the intermediary calculation values (loop controller input measurement, for example). Click once on the mouse button to make changes to Auto/Manu and Remote/Local settings. Associated command values or setpoint values are captured directly in the input fields. Grayed-out input fields are inactive.