{
{    The purpose of this request is to retrieve the value that uniquely
{  identifies the mainframe.
{
{        PMP$GET_MAINFRAME_ID (MAINFRAME_ID, STATUS);
{
{ MAINFRAME_ID: (output) This is the unique identifier of the mainframe.
{
{ STATUS: (output) This is the status of the request.
{        CONDITIONS: none.
{
