When an FBE is invoked by CICS® VT, addressability is provided to three parameters:
In a COBOL FBE, include appropriate variables in the linkage section. For a PLI FBE, include them as parameters in the PROCEDURE statement. In an assembler FBE, register 1 points to the three-word parameter list.
You address these parameters using the same techniques that are described for FBE parameters.