SSM 

The Sign/Status Matrix.  This element includes information on how to interpret the data content of an ARINC-429 message.  Such data could be H/W equipment condition, operational mode, data validity and so on.  NOTE: The interpretation of the SSM value is dependent on the data format.  Some manufacturers also use non-standard data formats which use bits that are normally reserved for the SSM.  In these cases the SSM element is not included.

Element Information

Model

Used By

Elements ARINC-429-BlockType/Properties/StartIdentification, ARINC-429-BlockType/Properties/StopIdentification

Source 

<xs:element name="SSM">
  <xs:annotation>
    <xs:documentation xml:lang="en">The Sign/Status Matrix. This element includes information on how to interpret the data content of an ARINC-429 message. Such data could be H/W equipment condition, operational mode, data validity and so on. NOTE: The interpretation of the SSM value is dependent on the data format. Some manufacturers also use non-standard data formats which use bits that are normally reserved for the SSM. In these cases the SSM element is not included.</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction base="xs:string">
      <xs:enumeration value="00">
        <xs:annotation>
          <xs:documentation xml:lang="en">Plus, North, East, Right. To, Move - for BCD data . Failure, Warning - for BNR data.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="01">
        <xs:annotation>
          <xs:documentation xml:lang="en">No Computed Data - for BCD and BNR data</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="10">
        <xs:annotation>
          <xs:documentation xml:lang="en">Functional Test - for BCD and BNR data.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="11">
        <xs:annotation>
          <xs:documentation xml:lang="en">Minus, South, West, Left, From, Below - for BCD data . Normal Operation- for BNR data.</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
</xs:element>

Sample