Using FM headers to invoke ISC edit

• The attach manager is in the reset state (between-brackets or following a RAP), and either no ATTACH FM header or an ATTACH FM header that does not specify a destination process name (ATTDPN) is received.
• The destination process name (ATTDPN/SCDDPN) within the ATTACH or SCHEDULER FM header equals ISCEDT or indicates the user-defined alias for ISC edit as defined during system definition on the COMM macro statement.
• The attach manager is not in the reset state, the active process is ISC edit, and either no ATTACH FM header or a header that does not specify an ATTDPN is received.

Input that does not specify the ATTPRN/SCDPRN parameter is edited only for the transaction code and password at the beginning of the message. The optional IMS password and leading characters less than X'41' are deleted during editing. The format and requirements for the IMS transaction code and password are the same as for basic edit. No editing of any kind occurs for the remainder of the message.

Input parameters passed from the attach manager or SCHEDULER (if supplied) are return destination process name (ATTRDPN/SCDRDPN), return primary resource name (ATTRPRN/SCDRPRN), and primary resource name (ATTPRN/SCDPRN).

The input ATTPRN/SCDPRN parameter is passed from the attach manager or SCHEDULER as an IMS transaction code or as the LTERM name on a message switch, as defined under Initiating a process: ATTACH FM header. When the ATTPRN/SCDPRN parameter is supplied, no editing of any kind occurs for the input. ATTPRN/SCDPRN defines an IMS destination, but does not provide an input password to IMS transaction security (if this security is defined for the ISC node).