XML message about response status
<?xml version="1.0" encoding="utf-8"?>
<ResponseStatus version="2.0" xmlns="http://www.std-cgi.org/ver20/XMLSchema">
<requestURL>
<!--required, read-only, xs:string, request URL-->
</requestURL>
<statusCode>
<!--required, read-only, xs:integer, status code: 0,1-OK, 2-Device Busy, 3-Device Error, 4-Invalid Operation, 5-Invalid XML Format, 6-Invalid XML Content, 7-Reboot Required, 9-Additional Error-->
</statusCode>
<statusString>
<!--required, read-only, xs:string, status description: OK, Device Busy, Device Error, Invalid Operation, Invalid XML Format, Invalid XML Content, Reboot, Additional Error-->
</statusString>
<subStatusCode>
<!--required, read-only, xs:string, describe the error reason in detail-->
</subStatusCode>
<MErrCode>
<!--optional, xs:string, error code categorized by functional modules, e.g., 0x12345678-->
</MErrCode>
<MErrDevSelfEx>
<!--optional, xs:string, extension field of MErrCode. It is used to define the custom error code, which is categorized by functional modules-->
</MErrDevSelfEx>
</ResponseStatus>