Software Reference Manual - NetEx

BFXJSC
BFXJS Control
BFXPRM
Analyze Params
BFXRCV
File Recv Ctl
BFXSCN
Scan Parameters
BFXCON
NETEX Connect
BFXRBM
Rev Block Mdl
BFXRRM
Rev Rec Module
Figure 23. BFXJS Module Block Diagram
BFX Module Descriptions
The following paragraphs describe seven of the default BFX modules. Understanding these modules will
help the reader write their own user modules. The following modules (RCV, SND, RBM, SBM, RRM, SRM,
and SUB) were introduced earlier in the block diagrams. Refer back to the block diagrams as necessary while
reading the module descriptions.
BFX Receive File Control (RCV)
This module receives control from the TIC, TRC, or JSC main modules when a file is to be transferred. The
parameters to be used for the transfer are specified in the TROL that was built by the PRIM module or internally
generated in the case of JSC. Its flow of control is as follows:
1. The receiving block module is called for the first time. On a first time call, the block module will call the
record module to open the file for output and determine the maximum record size.
2. On return from the block module, RCV adjusts the BLOCK= value upwards if necessary. Based on the
calling main program (which is specified in the TROL) it calls CON (BFX session offer or BFX session
MAN-REF-H211-05 Appendix B: BFX Internal Summary Page 81