PI to AS/400 Sync

Hi Guys! I have a requirement: SOAP <-> PI <-> JDBC(AS/400). I work with SAP PI 7.10

We will concentrate in  connection PI to AS/400

The steps already ok are:

*Fromhttp://sourceforge.net/projects/jt400/ we obtain the driver jt400.jar, it is was deployed at PI.

*The connectivity was tested with the JDBVISUALIZER, I load the jar above and all ok. I have access to the BDD on AS/400.

I read the link and the link does not show a concrete solution using SAP PI.

http://scn.sap.com/thread/1386488

The doubt:

*The requirement indicates, invoke a program CL on AS/400. The program CL expects a request and returns a response, and Pi should capture the response because the interface is synchronous.

*I create the channel receiver JDBC, and I know not how to invoke the program CL on AS/400.

Any idea to achieve my requirement?

Thanks in advance.