# Setting Up SoftPLC Communications

1. In the open Protocol Client, subscribe user data with MID0241.

2. Controller accepts the command by sending MID0005 to the Open protocol client.

3. The Open protocol client uses MID0240 to download user data from the controller.

4. Controller accepts the command by sending MID0005 to the Open protocol client.

5. Controller uses MID0242 to send data out to the Open Protocol client.

6. Open protocol client acknowledges with MID0243 that it has received user data.

   Refer to the document "OpenProtocol Appendix for PowerFocus 6000 SW1.5.docx " for further information.