Post Configuration Presentation

Introduction

Post configuration is an option that allows you to modify some parameters of the application without changing the application. Post configuration parameters are defined in a file called Machine.cfg, which is stored in the controller.

By default, all parameters are set in the application.The parameters defined in the Post Configuration file are used instead of the corresponding parameters defined in the application. Not all parameters have to be specified in the Post Configuration file (for example: one parameter can change the IP address without changing the Gateway Address).

Parameters

The Post Configuration file allows you to change network parameters.

OPC UA parameters:

  • Server name

    NOTE: The following characters are supported by the server name parameter: a...z A...Z 0...9 - _

    The length is limited to 30 characters.

Ethernet parameters:

  • IP Address

  • Subnet Mask

  • Gateway Address

  • Transfer Rate

  • IP Config Mode

  • Device Name

  • IP Master Address

Serial Line parameters, for each serial line in the application (embedded port or PCI module):

  • Baud rate

  • Parity

  • Data bits

  • Stop bit

FTP:

  • FTP encryption setting parameter

Profibus parameters, for each Profibus in the application (TM4 module):

  • Station address

  • Baud rate

NOTE: Parameter updates with a Post Configuration file that impacts parameters used by other devices via a communication port are not updated in the other devices.

For example, if the IP address used by an HMI is updated in the configuration with a Post Configuration file, the HMI uses the previous address. You must update the address used by the HMI independently.

Operating Mode

The Post Configuration file is read after:

Refer to Controller States and Behaviors for further details on controller states and transitions.