PASS has different meanings when used with CLSDST and ACCESS. CLSDST PASS is not the same as ACCESS PASS.
These two parameters are referenced at various places within TPX Administration (TPXADMIN) System Options:
ACT (Application Characteristics Table):
Issues CLSDST PASS - Indicates whether the application may issue a CLSDST PASS to another VTAM applid after the initial session to this application is established. Specifying Y allows TPX to recognize that the aspects of CLSDST PASS processing are normal and not error situations. If you specify Y and the application type is GRP, you normally need to specify a substring so TPX can identify the original application session.
SMRT (System Options Table):
ACCESS - The access mode defines the type of access to applications:
A user administrator can specify a lower, but never higher, level of ACCESS in a profile or user definition.
Session Options (Profile or User):
ACCESS=PASS indicates that this session should be treated as ACCESS=PASS even though the system or the user has ACCESS=SINGLE or ACCESS=MULTIPLE.
ACCESS changes the user's session access privileges from that specified in the SMRT: