Service Flow Modeler has a tool that conducts an interactive 3270 request and reply dialog with CICS and IMS applications. Using FEPI, it sends requests to and receives replies from any CICS or IMS application whose 3270 datastream is intended for a SLU2 3278 Model 2 terminal (24 rows by 80 columns).
When you model screen navigation in a flow and produce an adapter service, a FEPI server adapter is generated to perform the following functions:
The buffer in a single send or receive must not be greater than 3,600 bytes.