A
CICS® transaction
that sends data to an EPI user application cannot:
- Use 14- and 16- bit addresses and structured fields, as the CICS Transaction Gateway and CICS Universal Client support only
the ASCII-7 subset of the 3270 data stream architecture. Only 12-bit SBA addressing
is supported. Consequently, the maximum screen size for EPI terminals is 27
rows by 132 columns.
- Use the purge function to cancel ATI requests queued against the terminal. If
a CICS transaction
uses EXEC CICS START
with the DELAY option to schedule transactions to a terminal resource autoinstalled
by a user application, the user application should ensure that delayed ATI
requests are not lost when the terminal resource is deleted. See your server
documentation to determine the effects of deleting a terminal resource when
delayed ATI requests are outstanding.
An EPI user application cannot:
- Use basic mapping support (BMS) paging.
- Determine the alternate screen size of
the terminal resource definition, although it can determine the default screen
size.
An EPI user application communicating with CICS Transaction Server for iSeries™ cannot:
- Support languages that use DBCS.
- Support sign-on capable terminals.
- Start the CEDA transaction from a client terminal.
- Use PF1 to get CICS online
help from a client terminal.