Default actions for terminal error codes – IBM SC33-1683-02 User Manual

Page 821

Appendix B. Default actions of the node abnormal condition
program

This appendix describes the default actions of the node abnormal condition
program, DFHZNAC. The actions vary, depending on the terminal error code and
system sense codes received from VTAM. In most cases, DFHZNAC issues
messages and sets one or more “action flags” in the communication area passed to
the node error program, DFHZNEP. DFHZNEP then has the opportunity to change
the default actions (though not the messages) by setting or resetting flags. (Note,
however, that in some circumstances, the actions actually taken can vary from the
actions set, depending on the state of the node at the time of the error.)

For more information about DFHZNAC and DFHZNEP, see “Chapter 9. Writing a
node error program” on page 449.

The appendix is divided into the following sections:

1. “Default actions for terminal error codes”

2. “CICS messages associated with VTAM errors” on page 795

3. “Default actions for system sense codes” on page 800

4. “Action flag settings and meanings” on page 802.

Default actions for terminal error codes

Terminal error codes from VTAM are put in a 1-byte field (TWAEC) of the
communications area passed to DFHZNEP.

Table 44 shows the message issued and action flags set by DFHZNAC for each
terminal error code.

For error codes with CICS messages associated with them, see the

CICS

Messages and Codes manual for descriptions of the corresponding error conditions.

The figures in the “Action flags set” column are translated into bit settings and
explained in Table 47 on page 802.

Table 44. Messages issued and flags set by DFHZNAC for specific error codes

Error code

Symbolic label

Message

Action flags set

X'10'

TCZSRCTU

DFHZC2405

X'11'

TCZSRCBF

DFHZC2403

2 5 18 24

X'13'

TCZSRCVH

DFHZC2416

18 24

X'14'

TCZLRCER

DFHZC2404

2 3 9 10 11 23 24

X'15'

TCZSRCPF

DFHZC2407

2 3 9 10 11 24

X'16'

TCZDMIT

DFHZC3492

None

X'18'

TCZLRCNR

DFHZC2404

2 3 9 10 11 23 24

X'19'

TCZSRCTS

DFHZC2406

9 10 11 18

X'1A'

TCZSRCVE

DFHZC2408

2 3 9 10 11 24

X'1D'

TCZSRCVI

DFHZC2417

2 24

789