Siemens C79000-Z7076-C552-01 Manuel D’Utilisation

New Functions in Version V4.02

7

Supplement to the STEP 7 User Manual V4.0
C79000-Z7076-C552-01

The DP/PA link is a DP slave which for its part (acting as a kind of “master”)
“opens” a PROFIBUS PA for connecting PROFIBUS PA devices.

The PROFIBUS PA must be running at a transmission rate of 45.45 Kbps when
you connect PA devices.

To configure a DP/PA link, proceed as follows:

1. Install the optional package SIPROM; this will enable you to configure the PA

slaves from the “Hardware Catalog” window at a later stage. (The PA slaves are
located in the “PROFIBUS PA” container.)

2. Configure a DP master system.

3. Drag the DP/PA link (IM 157) from the “Hardware Catalog” window (“DP/PA

Link” container) to the DP master system.

4. Select the DP/PA link; the DP slave structure will be displayed in the lower

section of the station window.

5. Slot 4 represents the “master” for the PA devices; double-click on slot 4 to

6. Click the “PROFIBUS” button and select the subnet with the transmission rate

of 45.45 Kbps (already preset).

7. Then configure the PA devices.

(Proceed as for DP slaves: Use drag & drop to transfer the PA devices from the
“Hardware Catalog” window in the “PROFIBUS PA” container to the PA subnet.)