why CertificateChainType's Id is optional ?

[BinWatson]

Hi,
In V2G_CI_MsgDataTypes.xsd define CertificateChainType as below:

```
<xs:complexType name="CertificateChainType">
    <xs:sequence>
        <xs:element name="Certificate" type="certificateType" />
        <xs:element name="SubCertificates" type="SubCertificatesType" minOccurs="0" />
    </xs:sequence>
    <xs:attribute name="Id" type="xs:ID" />
</xs:complexType>
```

but in the c file, openv2g define iso1CertificateChainType as below:

```
struct iso1CertificateChainType {
struct {
        exi_string_character_t characters[iso1CertificateChainType_Id_CHARACTERS_SIZE];
        uint16_t charactersLen;
    }  Id ;
    unsigned int Id_isUsed:1;
    struct {
        uint8_t bytes[iso1CertificateChainType_Certificate_BYTES_SIZE];
        uint16_t bytesLen;
    }  Certificate ;
    struct iso1SubCertificatesType SubCertificates ;
    unsigned int SubCertificates_isUsed:1;
};
```

is attribute Id define as an optional ?

[Daniel Peintner]

XML schema attributes are optional by default.

[BinWatson]

i have an question, that is openv2g is fully meet iso15118-2014 ?

[Daniel Peintner]

Do you miss anything?
OpenV2G supports ISO IEC 15118 (Edition 1).

Note: the V2G implementation for ISO 15118-20:2022 will not be available as Open Source.
If you are interested in a commercial license solution, please contact us via exi.ct@siemens.com.