Writing multiple NEPs

You can write several node error programs, as described in Multiple NEPs. When an error occurs, the node abnormal condition program passes control to an interface module, DFHZNEPI, which determines the transaction class and passes control to the appropriate node error program.

If only one node error program is used, the interface module (DFHZNEPI) is not required. If the node error program is named DFHZNEP, the node abnormal condition program branches directly to that. If more than one node error program is used, the interface module (DFHZNEPI) is required. In this case, the node error programs must be given names other than DFHZNEP. There must be an installed program definition for every node error program generated.