OPC.UA_Query.Next.Request

description-logo Description

This indicates detection of the OPC Unified Architecture (OPC UA) QueryNext Request command.
OPC Unified Architecture is a communications and data modeling standard for the exchange of information. It is a set of OPC specifications that unifies the older specifications into a new set. It provides the capabilities of Classic OPC and is backward compatible with it. It uses multiple data transportation methods like TCP/IP, HTTP and XML SOAP.
The QueryNext service requests the next set of QueryFirst or QueryNext response information that is too large to be sent in a single response.

affected-products-logoAffected Products

OPC UA

Impact logoImpact

Unexpected network communication

Technology

Browser-Based, Network-Protocol, Client-Server, Peer-to-Peer, Cloud-Based, Mobile-Device

Behavior

  • Reasonable

Application Dependencies