Using The Dp/Pa Coupler - Siemens SIMATIC PCS 7 Operating Manual

See also
Assigning redundant fieldbus via engineering task (Page 118)
14.7.12

Using the DP/PA coupler

Introduction
The DP/PA coupler is used to achieve a better separation of tasks, as it establishes smaller
subnets inside the fieldbus system.
Procedure
1. Create a station as master.
2. Create all required objects, including an interface module, under the station.
3. To create a slave, use a gateway such as a DP/PA link.
You can select the following command from the context menu of the cabinet: "New >
Gateway - Devices > DP/PA link"
4. Insert a mounting rail below the DP/PA link.
5. Insert an interface module of the PAYLINK type below the mounting rail.
For example "PAYLINK: 6ES7 153-2BA82-0XB0 IM153-2 HF".
6. Open the "Tasks" tab in the properties of the interface module.
7. Drag the PROFIBUS of the master to the "Target object" field of the "Assign fieldbus" task.
8. Execute the task.
9. Create a new I/O device from the ET 200 group.
10.Open the "Tasks" tab in the properties of the ET 200.
11.Drag the DP/PA link fieldbus to the "Target object" field of the "Assign fieldbus" task.
12.Execute the task.
Result
PAA does not distinguish between a CPU or CP and a slave (gateway) as BUS master.
During generation, the attribute "YLinkMode" is created at the BUS master and determines
which BUS object will be used.
Note
Only use one bus system
Two bus objects exist when you work with the DP/PA coupler: one Profibus DP and one
Profibus PA. Only use one of the BUS systems.
Plant Automation Accelerator 3.0
Operating Manual, 04/2019, A5E46351208-AA
14.7 Hardware engineering in the Navigator
Engineering in PAA
115