Mapping via logical device

The fieldbus can also be accessed via a logical device (LogicalDeviceFieldbusSetAlarm). Direct mapping is not possible in this case.

The following methods can be used for communication with the fieldbus via the logical device "LogicalDeviceFieldbus SetAlarm":

Name

Implementation

Description

GetStateV3

Method for providing the fieldbus state

GetPdInV2

Method for providing the incoming fieldbus data

SetPdOutV2

Method for writing the outgoing fieldbus data

To insert a logical device for a fieldbus, proceed as follows:

  1. Open the context menu of "SEWLogicalDevicePool" and click [Add device].
    • The "Add device" dialog is displayed.
  2. Select the logical device "LogicalDeviceFieldbusSetAlarm" from the "Miscellaneous" category and click [Add device].
    • If a fieldbus device has already been plugged into the fieldbus before, the dialog for connecting the logical device to the fieldbus device appears.
  3. Select the "Process_Data" entry in the dialog and click [OK].
    • The logical device for accessing the fieldbus has been added and connected to the fieldbus device.