IBM SC34-6814-04 - Manual (Page 511)

**********************************************************************
**
Header **
** These fields are READ ONLY **
**********************************************************************
NEPCAHDR DS
0XL4 Standard Header
NEPCAFNC DS XL1 Function Code Always ’1’
NEPCACMP DS XL2 Component Code Always ’ZC’
DS XL1 Reserved
**********************************************************************
**
Error_being_processed **
** Identity of terminal and the error code associated with it **
** These fields are READ ONLY **
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TWAEC
DS XL1 Error Code
DS CL3 Reserved
TWANID DS CL4 Terminal identity
TWANETN DS CL8 Netname
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**
User option bytes **
** Initially set to the default actions. **
** DFHZNEP can change the defaults. **
**********************************************************************
TWAOPTL
DS 0XL3 User option bytes
TWAOPT1 DS XL1 User option byte 1
TWAOPT2 DS XL1 User option byte 2
TWAOPT3 DS XL1 User option byte 3
DS XL1 Reserved
Figure 31. The DFHZNAC/DFHZNEP communication area (part 1)
Chapter 9. Writing a node error program 489