Structure of ^%IS Global

The ^%IS global is stored in the %SYS namespace. It contains two subscripts. The first subscript is the mnemonic name configured for the device in the Management Portal. Select System Administration, Configuration, Device Settings, IO Settings to display the default mnemonic for different device types. The second subscript can be 0 or 1.

Contents of Node 0

Node 0 contains the Device panel Location value:

^%IS(mnemonic,0) = Location

Contents of Node 1

Node 1 contains the other Device panel field values separated by a caret (^):

^%IS(mnemonic,1) = Device #^Type^Subtype^Prompt code^not used 
^Other Open parameters^Alternate device

In this example, the device with the mnemonic name 2 (which is a default name for the InterSystems IRIS spooler) has a device number of 2, device type of SPL (spool), device subtype of PK-DEC. The other values are not defined for a spool type device.

^%IS(2,1) = 2^SPL^PK-DEC^^^^^

^%IS Mnemonics