Where data conversion takes place

CICS® intercommunication takes place on SNA links, which assume that all system data is in EBCDIC format. To ensure that transmitted data is in EBCDIC format, CICS ASCII-based systems convert all fields except application data areas, which are converted by the receiving system. Table 2 shows where data conversion is done for function shipping and DPL between CICS systems. The table includes all the conversion done automatically by CICS systems.

Table 2. Data conversion for function shipping and DPL
Request type Data Conversion type Where converted
TS Queue name Character ASCII system
TS Start of changeFROM areaEnd of change As specified in DFHCNV table Receiving system
TD Queue name Character ASCII system
TD Start of changeINTO areaEnd of change As specified in DFHCNV table Receiving system
FC File name Character ASCII system
FC Start of changeSET areaEnd of change As specified in DFHCNV table Receiving system
FC Key As specified in DFHCNV table Receiving system
IC Transaction ID Character ASCII system
IC FROM area As specified in DFHCNV table Receiving system
IC RTERMID, RTRANSID, REQID Character ASCII system
PC Program name Character ASCII system
PC COMMAREA As specified in DFHCNV table Receiving system

Related concepts
Function shipping and DPL
Distributed transaction processing
Transaction routing
Types of conversion
Character data
Binary data
The conversion process
User-defined conversion tables
Example macros
The user-replaceable conversion program
Related tasks
Avoiding data conversion
Resource definition to enable data conversion
Defining the conversion table
Assembling and link-editing the conversion programs
Related reference
Character data
Defining the conversion table
The user-replaceable conversion program
[[ Contents Previous Page | Next Page Index ]]