Integer representing the threshold type, this is usually the same as resource type. Integer representing the threshold type: 3009 = String 3010 = Sbit32 (signed 32 bit integer) 3011 = Ubit32 (unsigned 32 bit integer) 3012 = Sbit64 (future use) 3013 = Ubit64 (future use) 3014 = Float64 (64 floating point number) 3015 = Enumerated Type 3016 = Error Not applicable if operator is poll or change; or if Resource Type is Error Note: enumerated type is not supported as threshold type.