Last CICS 3270 Screen Buffer

Selecting the "Last CICS® 3270 Screen Buffer" link displays the last 3270 screen buffer written by CICS, as in the example shown in Figure 1.

Figure 1. Sample Last CICS 3270 Screen Buffer display
  File  View  Services  Help
───────────────────────────────────────────────────────────────────────────────
Last CICS 3270 Screen Buffer                                   Line 1 Col 1 80
Command ===> ________________________________________________ Scroll ===> CSR 
Normal Hex - TRANID: SK00 CICS ABEND: ASRA CICS02 2019/06/07 11:10:32 Column Row ----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+ 1 sk00*** CICB0CB0 - START OF PROGRAM........................................ 2 ........................................................................... 3 ........................................................................... 4 ........................................................................... 5 ........................................................................... 6 ........................................................................... 7 ........................................................................... 8 ........................................................................... 9 ........................................................................... 10 ........................................................................... 11 ........................................................................... 12 ........................................................................... 13 ........................................................................... 14 ........................................................................... F1=Help F3=Exit F5=RptFind F6=Actions F7=Up F8=Down F10=Left F11=Right

All non-printable characters are shown as periods (.).

It is not always possible for Z Abend Investigator to provide CICS 3270 screen buffer information. For example, if there are indications of VTAM® session errors on the terminal, or if one of the following CICS abends have occurred (* indicates a wildcard character), then no 3270 screen buffer information is provided:
  • AEXZ
  • AKC3
  • AKCT
  • AKK*
  • ATC*
  • ATN*
  • AZCT
  • AZI*
  • AZTS
Two point-and-shoot fields are provided under the panel title to toggle the state of the display:
  • Normal displays only the EBCDIC characters of the last screen buffer.
  • Hex also displays the hex values of each character below each row:
    Figure 2. Sample Last CICS 3270 Screen Buffer Hex display
      File  View  Services  Help
    ───────────────────────────────────────────────────────────────────────────────
    Last CICS 3270 Screen Buffer Hex                               Line 1 Col 1 80
    Command ===> ________________________________________________ Scroll ===> CSR 
    Normal Hex - TRANID: SK00 CICS ABEND: ASRA CICS02 2019/06/07 11:10:56 Column Row ----+----1----+----2----+----3----+----4----+----5----+----6----+----7--- 1 CSCB0010 ABOUT TO ABEND AEIL ........................................... CECCFFFF4CCDEE4ED4CCCDC4CCCD440000000000000000000000000000000000000000000 3232001001264303601255401593000000000000000000000000000000000000000000000 2 ......................................................................... 0000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000 3 ......................................................................... 0000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000 4 ......................................................................... 0000000000000000000000000000000000000000000000000000000000000000000000000 F1=Help F3=Exit F5=RptFind F6=Actions F7=Up F8=Down F10=Left F11=Right
The selected option is remembered between interactive analysis sessions.
When the CICS 3270 screen buffer is available, it is displayed to all users by default. You can restrict its display to users who have READ access or higher to an XFACILIT profile named HFZ_FEATURE_DISPLAY_CICS_3270BUFFER. For example, the following RACF commands restrict the 3270 screen buffer display to members of group DEV1:
RDEFINE XFACILIT HFZ_FEATURE_DISPLAY_CICS_3270BUFFER UACC(NONE)
PERMIT HFZ_FEATURE_DISPLAY_CICS_3270BUFFER CLASS(XFACILIT) ID(DEV1) ACCESS(READ)
Note: The contents of the CICS 3270 screen buffer are visible if a user views a fault entry outside of Z Abend Investigator (for example, using ISPF BROWSE). To control this level of access, define the history file data-set-profile access as UACC(NONE), and define an XFACILIT profile that grants access to the history files. See Using the XFACILIT resource class for history file fault entries.