Derivation: INQuire the Pre-Connected units that are OPeNed

INQPCOPN controls whether the OPENED specifier on an INQUIRE by unit statement can be used to determine whether a preconnected unit has had any I/O statements directed to it.

Non-CICS default

INQPCOPN=((ON),OVR)

CICS® default

INQPCOPN is ignored under CICS.

Syntax

                      .-ON--.        .-OVR----.      
>>-INQPCOPN--=--(--(--+-OFF-+--)--,--+-NONOVR-+--)-------------><

ON

Causes the running of an INQUIRE by unit statement to provide the value true in the variable or array element given in the OPENED specifier if the unit is connected to a file. This includes the case of a preconnected unit, which can be used in an I/O statement without running an OPEN statement, even if no I/O statements have been run for that unit.

OFF

Causes the running of an INQUIRE by unit statement to provide the value false for the case of a preconnected unit for which no I/O statements other than INQUIRE have been run.

OVR

Specifies that the option can be overridden.

NONOVR

Specifies that the option cannot be overridden.