Siemens S7-1500 PROFIBUS Operating Instructions Manual page 39

Setting up a configured FDL connection using TSEND_C
Proceed as follows to set up a configured FDL connection in STEP 7:
1. Create a TSEND_C instruction in the program editor.
You will be prompted to create the relevant data block.
2. Select the TSEND_C instruction and navigate in the Inspector window to "Properties" >
"Configuration" > parameter group "Connection parameters".
3. In type of configuration, select "Use configured connection"
4. In connection type, select "FDL".
5. Under End point, select the partner end point. Use one of the two following partner end
points.
– CPU S7-1500 with CM 1542-5
– Unspecified
6. Select the following interfaces under Interfaces:
– Local: PROFIBUS interface of CM 1542-5
– Specified partner: PROFIBUS interface of CM 1542-5
7. Select the setting <new> under Connection data.
This creates a new connection between the two partners.
The figure below shows a fully configured FDL connection in STEP 7.
Figure 3-2 Configuring the FDL connection
8. Configure the further block parameters.
SIMATIC CM 1542-5
Operating Instructions, 01/2023, C79000-G8976-C290-07
Configuration, program blocks
3.6 Program blocks for FDL
39