+tag 550 rpnOperators structured
+tag 551 rpnOperator numeric
+tag 552 resultSetAsOperandSupported bool
+tag 553 restrictionOperandSupported bool
+tag 554 proximitySupport structured
+tag 555 anySupport bool
+tag 556 proximityUnitsSupported structured
+tag 557 proximityUnitSupported structured
+tag 558 proximityUnitVal numeric
+tag 559 proximityUnitPrivate structured
+tag 560 proximityUnitDescription string
+