SCDPRN
The CICS® transaction
specifies the primary resource name field (SCDPRN) in the TERMID field
of the START command.
This field, when sent by CICS to IMS, names an IMS LTERM or transaction code that is the message destination. If this field is omitted when CICS sends a message to IMS, IMS examines the first eight bytes of the incoming message to extract the message destination.
Recommendation: To maintain
consistency between IMS and CICS, use this field to name an
LTERM for IMS message switches
and place transaction codes in the first eight characters of the data
stream.
When received by CICS in a reply from IMS, this field contains the value that CICS sent to IMS as the return primary resource name (SCDRPRN) on the outbound message or a value placed into the field by MFS. This field contains a value that identifies the terminal that is to be used as a principal facility and to which the reply should be sent.