Login  •  Register


Opc server request limitation

Unified Architecture topics related to OPC UA Specification, compliant behavior and any technical issues of OPC UA, like Security, Information Model, Companion Specs DI, PLCopen, ADI, ...

Opc server request limitation

Postby glawi00s » 06 Nov 2018, 15:56

It seems reasonable for an Opc client to ask the opc server for Request settings (e.g. Operation Timeout, MaxOperationPerRequest). Is it mandatory for a server to publish these properties? If yes, where in the namespace is it found? And where is it found in the OPC UA standard?
glawi00s
Full Member
Full Member
 
Posts: 7
Joined: 01 Apr 2016, 12:04

Re: Opc server request limitation

Postby Support Team » 11 Jul 2019, 10:12

Hello,

if a server has operational limits it should provide such information in it's information model.
Root->Objects->Server->ServerCapabilities->OperationalLimits

If a server does not provide such nodes, the client may assume that the server has "no limits".
However, a client must be capable of handling errors on all service calls and on all operations and react properly.
Best regards
Unified Automation Support Team
User avatar
Support Team
Hero Member
Hero Member
 
Posts: 2420
Joined: 18 Mar 2011, 15:09


Return to Technical

Who is online

Users browsing this forum: No registered users and 0 guests

cron