Fieldbus settings
The Connection status can show the following status messages:
| Status | Description | 
|---|---|
| Fieldbus_Online | The fieldbus module is online. The communication between the controller and the fieldbus master is active. | 
| Fieldbus_Offline | The fieldbus module is offline. The communication between the controller and the fieldbus master is not active. | 
| Fieldbus_NoModuleInstalled | No fieldbus module is detected in the controller. | 
| Fieldbus_NotConfigured | A fieldbus module is detected in the controller but the module is not configured. | 
| Fieldbus_Initializing | A fieldbus status during reset or as a result when global parameters have been changed. This is a temporary status until a steady status is displayed. | 
The fieldbus status can also show errors:
| Error Code | Description | Action | 
|---|---|---|
| Fieldbus_ModuleMismatch | Supported module. Parameter mismatch detected. | Contact Atlas Copco to read error log. | 
| Fieldbus_UnsupportedModuleInstalled | Unsupported fieldbus module. | Contact Atlas Copco to read error log. | 
| Fieldbus_ConfiguredModuleNot Installed | Configuration data created. No module detected. | Contact Atlas Copco to read error log. | 
| Fieldbus_Unexpectedconfigurationerror | Mismatch between controller and ToolsTalk 2. | Contact Atlas Copco to read error log. | 

Changing some global parameters like frame size, fieldbus module address, will cause the fieldbus module to reset.
- Select a controller in the Plant structure workspace  . .
- Select Fieldbus and SoftPLC  in the Menu bar then select the Overview sub-tab. in the Menu bar then select the Overview sub-tab.
- In Fieldbus settings select Fieldbus type from the drop-down menu. 
- Enter the size in bytes of the entire Frame size for both the receive and transmit direction. The value must be an even integer number. 
- Enter the fieldbus type specific parameters.