Process data description

The process data description defines the content of the process data to be transmitted. The user can individually assign all the process data words.

The following 6 fieldbus parameters are available for defining the first three process data words:

• P870 setpoint description PO1
• P871 setpoint description PO2
• P872 setpoint description PO3
• P873 actual value description PI1
• P874 actual value description PI2
• P875 actual value description PI3

If one of the above mentioned parameters is changed, acceptance of process output data for setpoint processing via fieldbus is automatically disabled. Only when the fieldbus parameter is activated again,

• P876 PO data enable = ON

will the received process output data be processed according to the new actual and setpoint value descriptions.

Process data words 4 to 10 can only be read and written using IPOS^plus®.

• Setpoint description of PO data
• Special cases of PO data processing
• Actual value description of PI data
• Scaling of process data