How to Access the Serial Link Parameters
(Original Document)
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At a Glance
The following pages explain how to access the serial port configuration screen for the following processors as well as the general elements of Modbus and Character Mode link configuration and debug screens:
How to Access the Serial Link
The table below describes the procedure for accessing the serial link:
Step
Action
1
In the project browser, open the following directory: Project\Configuration\0: PLC bus\0: BMX XBP ••••\0: BMX P34 ••••\SerialPort.
Result: The following screen appears:
2
Double-click on the SerialPort sub-directory.
Result: The configuration screen appears:
Description of Configuration Screen
The following table shows the different elements of the configuration screen:
Address
Element
Function
1
Tabs
The tab in the foreground indicates the current mode. Each mode can be selected using the corresponding tab. The available modes are:
  • Configuration
  • Debug screen (accessible in online mode only)
2
Channel zone
Enables you to:
  • Choose between the serial port and channel 0 by clicking on one or the other.
  • Display the following tabs by clicking on the serial port:
    • "Description", which gives the characteristics of the device.
    • "I/O Objects", which is used to presymbolize the input/output objects.
  • Display the following tabs by clicking on the channel:
    • Configuration
    • Debugging
  • Display the channel name and symbol defined by the user using the variables editor.
3
General parameters zone
This enables you to choose the general parameters associated with the channel:
  • Function: The available functions are Modbus and Character Mode. The default configuration is with the Modbus function.
  • Task: Defines the master task in which the implicit exchange objects of the channel will be exchanged. This zone is grayed out and therefore not configurable.
4
Configuration or debugging zone
In configuration mode, this zone is used to configure the channel parameters. In debug mode, it is used to debug the communication channel.