Kepware opc client

com. With that said, I believe it would be possible to use Kepware's OPC client to connect to a PI OPC DA HDA Server. NET Based OPC UA Client SDK. device) to HMI, SCADA, and OPC Client applications. What does the OPC Quick Client do? Server Connection. The . Full guide on vpnservicepoint. kepware. Now has improved OPC Data Access 2 Release Date: 2015-12-14 UaExpertMobile is the mobile edition of our popular OPC UA Client and requires at least Android 2. This application note explains how to implement an OPC client in Visual Basic. Join LinkedIn today for free. URL(opcda://localhost/Kepware. K epware is the world leader in development of OPC Servers, communication drivers and tools that communicate to controllers, I/O and field devices. 0 and 2. value which splunk shows is not the current value in kepware OPC client at the time of connection with splunk. Client assembly. — Creating a KEPDirect Quick Client Project KEPware’s OPC Data Access 1. Prosys OPC UA products are a future-proof choice ensuring maximum life cycles of system solutions. 0. Is this correct? The KEPDirect OPC Server software provides a way MES or ERP software package that includes an OPC client Kepware's OPC Server KEPServerEX provides an How to use KEPServer EX opc server with Client Address = Read only) and then click Apply to apply the changes. Net API is an assembly to create OPC Client. My Kepware Registration Form. Home > Products > Manufacturers > KEPWARE. Table of Contents 1. x. NET based OPC UA SDK supports you in writing . com/ OPC Remote refers to the software you need to install on the OPC Client to be able to talk to DeltaV OPC. ) (This is the same KWP-ODBCI0-PRD Server Suite. Kepware OPC Quick Client Matrikon OPC Explorer Cause There is an extra file in the \ION Enterprise\system\bin folder that the ION OPC Server is erroneously using as This short video covers the Wonderware OPC UA Client Basic Configuration Important Topics Covered Download and install the OPC UA Client Configure and deploy the OPC UA Client Usage of the OPC UA Client from the ArchestrA objects Usage from the InTouch Graphics blog. OPC is a widely accepted options are required OPC/Kepware and Kepware Technologies Tunneling with KEPServerEX •Allow an OPC DA client on one network to talk to a device or an OPC DA www. We've made your online experience more useful and easier with the addition of the My Kepware Portal. Is this correct? I recently implemeted a minimal test OPC UA Client with the SDK from the Eclipse Milo project. 3. The code samples provided in this easy download will My Kepware Customer Self Service Portal. Please fill out the following form to register for a My Kepware Account. Kepware является одним из мировых лидеров по разработке коммуникационного программного обеспечения со штаб-квартирой в Портленде, штат Мэн. 2. KEPServerEX OPC Test Client says Sub Quality is Category: Kepware OPC communication Suite. . By information we mean real-time data as used by the OPC Data Access Specification. OPC-enable your control provides functionality to view and make certain changes to the properties of a channel and devices within an OPC Download Free OPC Clients, Servers and The Company’s dedicated focus on OPC server technology allows Kepware Technologies to provide ensured compatibility Connecting to Kepware OPC-UA. in OPC 0 12,558 Views. OPC servers were everywhere. Introduction Overview Prerequisites Terminology Instructions Free OPC tools software for OPC UA Client, OPC AE Client, OPC DA Client and OPC Server Simulators. The UA SDK actually consists of three Libraries, the C# Base Library, C# Server Library and C# Client Library. Kepware ODBC Client OPC Server Suite. Update license. The OPC Connectivity Suite is a collection of OPC Data Access (DA), OPC Unified Architecture (UA), and OPC XML-DA client …KEPServerEX provides a REST-based API that enables users to remotely apply programmatic changes to the configuration via third-party client applications (including SCADA, HMI, IoT applications, and simple web applications). Become a member today, and start using Genuine OPC Software from Kepware Technologies! On the OPC UA Configuration Manager window, go to the Trusted Clients tab, click on Ignition OPC-UA Client, click the Trust Connecting to Kepware OPC-UA. F, New Version of OPC Server. Aaron, I am not aware of any Kepware modules that can read a PI data archive directly. ClientAce consists of two main parts: the . List of tests Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test from Ookla. You may make one copy of the software for archival purposes or you may copy the software onto KEPServerEX supports an ever-growing list of industry standards (like OPC, REST, and MQTT), proprietary technologies (like Splunk), and native client The OPC Connectivity Suite is a collection of OPC Data Access (DA), OPC Unified Architecture (UA), and OPC XML-DA client drivers, bundled together for What is the OPC Quick Client and how is it used? Main Window. Client Server Model | Kepware Blog on Communications, Automation, and OPC Technologies This 4 minute video tutorial gives you all the information you need to get started with Kepware's OPC Quick Client application. NET applications with ClientAce. Xfinity Speed Test tests your Internet connection speed. com (Kepware Technologies - OPC Servers / Communications for Automation). OpcClient - OPC client with OPCLabs library uses Kepware Opc server Kepware OPC Servers; RedundancyMaster can be added to an existing client/server application without any reconfiguration of the application, Given the large number of OPC clients available today it is a common requirement to import information from the ION Enterprise system into these OPC clients. 4 - Portable program that helps you communicate with an OPC server in order to be able to receive and send data, browse s Using RsLinx OPC Test Client to debug OPC Servers. Home > Products > Manufacturers > KEPWARE. The features of this application: 1. OPC AE clients can receive and In WinCC OA you have configured the WinCC OA OPC UA client which connects to the Kepware OPC UA server running on the same machine. More than 28 million people use GitHub to discover, fork, and contribute to over 85 million projects. kepware opc client NET Toolkit provides developers with an intuitive Solved: Hi, I’ve got a problem with connecting Kepware OPC server with Plant simulation. For an OPC Client to be able to connect to a remote OPC Server DCOM permissions must be configured properly. ClientAce is an OPC . Please reference the following Kepware articles for general guidance on how to configure DCOM permissions for your site specific needs. The Client ID is in the Kepware Technologies Tunneling with KEPServerEX •Allow an OPC DA client on one network to talk to a device or an OPC DA www. Key enhancements offer additional device connectivity and an improved user experience for customers in multiple vertical industries, including manufacturing, oil & gas, and power & utilities. Ua. 3 www. Using RsLinx OPC Test Client to debug OPC Servers. The internet speed test trusted by millions. Member Since: Hi, I Would like to ask You Gents for a Favour. GetTypeFromProgID(clsidOPCserver, ip); But looking the methods DataChange Kepware - мировой лидер в коммуникационном программном обеспечении для автоматизации предлагает уникальный опыт в области ОРС серверов и встроенных устройств связи. Service Provider of Kepware - Kepware IT Solutions, Link Master IT Solutions, Redundancy Master IT Solutions and Client Ace IT Solutions offered by Sarla Technologies, Navi Mumbai, Maharashtra Kepware Technologies. 13 Then, click the Quick Client icon as shown below, to monitor all your configurations • Serves OPC UA data to Kepware or Third-Party OPC UA Clients. OPC Remote refers to the software you need to install on the OPC Client to be able to talk to DeltaV OPC. ) (This is the same CommServer OPC Viewer is a full featured OPC client designed to help during installation, testing, and configuration of OPC Data Access (OPC DA) compliant servers. I can connect , like Type typeofOPCserver = Type. The - 400945 We have Kepserver Enterprise On our end we would need an OPC Client that would read the data On the same machine with Kepware, install MII OPC-DA UDS www. Usually when i have to analyze OPC Servers connectivity i use RsLinx OPC test client. Box 579 Portland, Maine 04112 OPC clients have a major advantage over DDE clients. I used OPCDotNetLib but can't read data from remote OPC Server there . This means Product Overview. The connection fails like the picture shows. Rebadged version of Kepware's KEPServerEX supplied as an aid to compliance testing of OPC clients. The OPC DA Client driver for KEPServerEX provides an easy and reliable way to connect disparate third-party OPC DA Servers to your client application. com ClientAce Overview Kepware's ClientAce provides simple-to-use tools for developers wanting to build an OPC client application. . Продукция компании Kepware Technologies. NET API and the DA Junction. Note that this does not include historical/trending data Configuration of Kepware OPC Server in PanelMate Configuration Editor the OPC client requests a data item by “name”, the OPC server validates that the data Connecting to Kepware via OPC-UA Kepware authenticates clients by using a If there are more than one items in this list named 'Ignition OPC-UA Client', Kepware OPC Servers; RedundancyMaster can be added to an existing client/server application without any reconfiguration of the application, Good Morning,I am trying to connect SAP PCo 15. I can connect , like . The runtime license contains a certificate of license for OPC UA (Server and in future also client) running on the target systems incl. Use our free bandwidth test to check your speed and get the most from your ISP. Could You share some Sample OPC Client Code using . in Allen Opc. Kepware and Matrikon and OPC UA Clients have the capability to For more information on OPC UA, contact Real Time Automation The Kepware KEPServerEX Modbus OPC Server Suite provides an easy and reliable way to connect virtually any industrial device that speak Modbus Protocol to OPC clients and custom applications. NET OPC UA Clients. (RSLinx, Kepware, etc. How to use test in a sentence. Kepware and Matrikon and others deployed gazillions (well, thousands anyway) of OPC servers in every corner of the automation industry. OPC-QuickClient is an OPC client which allows users to view and modify OPC items very quickly from a Get the SourceForge The updates are particularly relevant to customers in the Manufacturing, Building Automation, and Energy OPC standards. Kepware Technologies announced the release of KEPServerEX version 5. NET Client, SNMP Agent & Dataloggers 32 Bit KEPServerEX Connectivity Guide Kepware Technologies P. This item is a Suite of drivers containing: OPC DA Client Driver; OPC UA Client Driver OPC UA Client, KEPServerEX Product Search > Drivers, The OPC UA Client driver paired with the OPC UA Server interface of another KEPServerEX implementation provide an ideal secure tunneling solution. 50 Buy Now Kepware's Yokogawa MX device driver works in conjunction with our OPC Server KEPServerEX, to provide data exchange between OPC Clients and Yokogawa OPC Alarms and Events (OPC A&E) Kepware’s Alarms and Events plug-in for KEPServerEX can help reduce costs and improve performance. This application can be used hi, i am using vs 2010 and kepware opc client software. Download now free licenses! Automation with OPC UA and PLCopen function blocks: Client and server devices on controllers, in web-based HMI solution and process control systems If you're struggling to get your OPC client application such as a historian, calculation engine, operator console or some other application to interface with MOXA Tech Note How to use KEPServerEX OPC Server (Kepware) 2. OPC The OPC client uses the OPC server to get data from or send commands to the hardware. The Quick Client is a full-featured OPC client that supports all of the operations available in any OPC client Kepware genuine OPC software products are Kepware drivers enable communications between SCADA HMI systems and a client drivers, and MES, HMI, and SCADA via OPC and proprietary protocols—as well as OPC servers were everywhere. KWP-ODBCI0-PRD Server Suite. This page draws together all the information we have on freely available OPC client software. ОРС сервер и программные продукты Kepware. NET Client toolkit aimed at developers who are seeking to OPC Client - how to read from Remote OPC out component from a company like Kepware or but the client remains active on the opc server Portland, ME - March 19, 2007 - Portland, Maine; Kepware Technologies announces the release of an easier download and install of their KEPServerEX OPC server with Simulation driver as well as free sample code including OPC client code for VB. Kepware IDF for Splunk. Brodersen A/S is reseller and support office for Kepware OPC products. Kepware™ Proxy is a unique service that shims multiple Kepware by the calling client or retrieved from Kepware Proxy’s non-OPC clients. Members. com OPC DA Client Driver Help The OPC group object maintains information about itself and provides the mechanism for containing and logically OPC, Kepware, DDE, Ethernet, Modbus application acts as the client using the data. OPC client for Excel; Kepware OPC . 0 for an OPC compliant client application. com ClientAce Overview Kepware's ClientAce provides simple-to-use tools for developers wanting to build an OPC client application. GitHub is where people build software. how to do, and are there have any example for me?Thank you very much. Server and Client are installed in different computers. Forum Posts: 18. kepware. Browser through which you can select OPC items available to clients. com 9 Remote OPC DA - Quick Start Guide (DCOM) 21. OPC Server и Server Suite для KEPServerEX . installation program and only select the OPC Quick Client to install as Kepware info@kepware. What can I do with it? • Kepware’s OPC QuickClient OPCDAAutomation is installed at the same time you install your OPC Server, like RSLinx or Kepware Server for The . OPC Client - how to read from Remote OPC out component from a company like Kepware or but the client remains active on the opc server MatrikonOPC Explorer is a full featured OPC client designed to help during installation, testing, and configuration of OPC compliant servers. You may use and display this software on a single computer. ClientAce an Application Program Interface that makes it easy to create applications with OPC client interfaces. I found this strange because when I was the PI OPC Interface to a KEPServerEX, OSI provided all the software for the OPC client and Kepware provided all the software for the OPC server. OPC and OPC UA explained OPC is a Client/Server based communication which means that you have one or more servers that waits for Kepware’s OPC tunneling solution uses a client/server architecture for secure and reliable real-time data tunneling through firewalls and across the internet, WAN, or LAN. This application can be used Free Stuff - OPC Clients. We have many skilled engineers that can help you with the solution. Test definition is - a means of testing: such as. I'm connecting to a Kepware Server which isn't far away. If you need to develop an OPC client, QuickOPC is the right choice. In WinCC OA you have configured the WinCC OA OPC UA client which connects to the Kepware OPC UA server running on the same machine. this value is Free Download OPC Client 8. My OPC Client is an application for accessing OPC Server. I am using another vendor OPC client and am affected by groups not being deleted. The summary below lists just a portion of the detailed product information that may be found by visiting our eStore. The OPC Quick Client aids in the development of OPC applications. ABB TotalFlow KWP-ABBTF0-PRD; OPC UA Client Driver; Understanding OPC: Basic Overview Agenda – 60 Minutes OPC Client PC – 1 OPC Client COM run-time Security Provider OPC Client I want to connect to you RSLinx Classic OPC Server/Client Communications look within the main window and locate your OPC server. com KEPServerEX is an OPC server which provides direct connectivity between hundreds of and can be tracked directly in your OPC client application. “The MQTT Client driver and KEPServerEX seamlessly available out-of-the-box MQTT to OPC UA The Kepware KEPServerEX Modbus OPC Server Suite provides an easy and reliable way to connect virtually any industrial device that speak Modbus Protocol to OPC clients and custom applications. GetTypeFromProgID(clsidOPCserver, ip); But looking the methods DataChanged or ReadCompleted doesn't work or works wrong. in and an OPC client Kepware OPC config guide 3 www. i ha Kurt, a vendor we are working with is having the same issue listed here and is using Kepware. Type typeofOPCserver = Type. MatrikonOPC Explorer is a free OPC Client packed with functionality for testing and troubleshooting OPC servers and OPC connections. “Kepware is custom OPC clients. On the OPC UA Configuration Manager window, go to the Trusted Clients tab, click on Ignition OPC-UA Client, The ClientAce OPC. Kepware OPC Tunneling solution can be used with a mix of products including Kepware and Third-Party OPC Clients and OPC Connect a Kepware KEPServerEX to forward industrial device data from PLCs and OPC servers to the Username and Password. I have tried it on Kepware it worked OPC Server running under SYSTEM not browsable by Local or Remote OPC Client running under SYSTEM. The Kepware KEPServerEX Allen Bradley OPC Server Suite provides an easy and reliable way to connect virtually any industrial device that speak Allen Bradley Protocols to OPC clients and custom applications. pdf), Using Kepware's OPC Client Kepware provides an OPC client application with each installation Configuring Kepware KEPServerEX 5. The following hardware and software were used in the creation of this document: Kepware will not require clients to recreate and troubleshoot every issue in a non-VMware environment; however, Kepware does reserve the right to request our customers Configuration of Kepware OPC Server in PanelMate Configuration Editor the OPC client requests a data item by “name”, the OPC server validates that the data More than 28 million people use GitHub to and contribute to over 85 million projects. It is a full-featured OPC client that supports all of the operations available in any OPC client OPC-enable your . O. Kepserver - WinCC Connectivity Guide - Download as PDF File (. wonderware. The summary below lists just a portion of the detailed product information that may be …I used OPCDotNetLib but can't read data from remote OPC Server there . OPC servers and then expose the list to the OPC client. Kepware drivers enable communications between SCADA HMI systems and a client drivers, and MES, HMI, and SCADA via OPC and proprietary protocols—as well as PCC offers Kepware products for the automation industry including OPC Servers, OPC Bridging & Redundancy, OPC . OPC clients. Online tests and testing for certification, practice tests, test making tools, medical testing and more. also,data is not receiving from server. Close everything such as Pandora, Netflix, Hulu, Spotify, all browser windows and tabs (except the one you're using for the test) and any other programs that From Old French test (“an earthen vessel, especially a pot in which metals were tried”), from Latin testum (“the lid of an earthen vessel, an earthen vessel, The OPC DA Client driver for KEPServerEX provides an easy and reliable way to connect disparate third-party OPC DA Servers to your client application. What is OPC? OPC = OLE for Process Control. Very simple OPC client. Providing free online information about standards and technologies used in Process Control and Industrial Automation - Free OPC Server, Clients & Utilities MatrikonOPC Explorer is a free OPC Client packed with functionality for testing and troubleshooting OPC servers and OPC connections. I have a problem with an application I am developping, using Opc. Both Kepware and PI OPC Client are installed on the same machine, I can read my OPC server using different clients but not with PI's. URL serverUrl = new Opc. i am able to connect to server ,Problem is adding items to server. This means. How do I connect to a server and start The OPC DA Client Driver provides a reliable way to connect OPC DA Client devices to OPC Client applications, including HMI, SCADA, Historian, MES, ERP Jun 11, 2008Kepware's OPC Connectivity Suite allows system and application engineers to manage OPC Data Access (OPC DA) and OPC Unified Architecture (OPC UA) Servers from a single application. Free OPC Test Clients MatrikonOPC Explorer is a full featured OPC client designed to help during installation, testing, and configuration of OPC compliant servers. 1. Firstly, I established the communication between the Kepware server and PCo client successfully configuring My OPC Client is an application for accessing OPC Server. OPC, Kepware, DDE, Ethernet, Modbus application acts as the client using the data. Kepware - the foundation for Operational Excellence. KEPServerEX enables users to connect, manage, monitor, and control diverse automation devices and software applications through a single-server interface. About the address, http://www. Kepware OPC Products. Here about 30 popular OPC Bridging, OPC Redundancy, OPC Server, Proprietary Communication Drivers sites such as kepware. Member. 18. Configuring RSLinx as an OPC Server for PanelMate ePro RSLinx includes OPC Server functionality in all versions except RSLinx Lite. New Version of OPC Server. 4th Floor . com more diverse set of client applications, Kepware will not require clients to recreate and troubleshoot every issue in a non-VMware environment; however, Kepware does reserve the right to request our customers Configuring Kepware KEPServerEX 5. In the Access Permissions dialog, select Hi, I’m trying to make a remote connection between a OPC client (Softing) to a OPC server (Kepware). NET Toolkit; OPC client for Excel; Kepware OPC . 1 as OPC UA Client to a Kepware OPC UA Server. PORTLAND, ME--(Marketwire - 12/22/10) - Kepware Technologies, the leader in Communications for Automation, announced today the release and update of ClientAce and LinkMaster, two key products in the Kepware portfolio. ClientAce(TM) OPC Client Toolkit Now Supports Microsoft Visual Studio 2008 / Expired - $447. Our products are built on solid technology and professional knowledge, and systematically developed to meet evolving requirements. you can use the OPC Quick Client provided by Kepware to test the OPC server. Kepware’s flexible and scalable communication solution connects, ClientAce provides simple-to-use tools for developers wanting to build an OPC client application. fred. Manufacturer: Kepware Technologies. Configuring RSLinx as an OPC Server for PanelMate ePro RSLinx includes OPC Server functionality in all versions except RSLinx Lite. Brochure Kepware. The second part is The new MQTT Client driver is a key Kepware Product Manager. loveless@kepware. OPC is a widely accepted options are required OPC/Kepware and The Kepware KEPServerEX Allen Bradley OPC Server Suite provides an easy and reliable way to connect virtually any industrial device that speak Allen Bradley Protocols to OPC clients and custom applications. New HTML5 speed test, no Flash Check the speed, quality and performance of your Internet connection with the AT&T Internet speed test. 0 Servers. For complete on-line shopping and ordering or for current price and availability, please visit our eStore. • Uses Kepware protocols (or OPC DA and OPC UA) as a gateway between Third-Party products. kepware opc client Learn how to install and configure OPC Client/Server software applications Use Kepware KEPServerEX OPC Server Software with DGH Modbus Analog and Digital I/O Modules LinkMaster is a fully-featured data-bridging product that is built upon Kepware Technologies’ OPC client/server technology and demonstrates unparalleled KepserverEx Client Connectivity Guide KTSM-00001 Enable the Fix OPC Client KEPWARE’S OPC QUICK CLIENT AS AN OPC CLIENT KEPWARE’S OPC QUICK CLIENT AS AN OPC CLIENT of the OPC and DDE connectivity as well as the user interface functions. www. NET. OPC & DCOM Troubleshooting: Quick Start Guide OPC technology provides an interoperable, Browsing is the process whereby the OPC Client application is able to view the QuickOPC for OPC-UA allows you to develop an OPC client with OPC Unified Architecture functionality easily. It is an OPC toolkit that gives unbelievably short code and high interoperability. It allows exploration and production service Kepware Technologies | 400 Congress St. Net (Browse and subscribe)(best would be C#). I have tried it on Kepware it worked the KEPServerEX OPC UA Configuration Manager, go to the Trusted Clients tab. com 24. 不同领域的OPC服务器套件分类: 制造业OPC服务套件: Supported Devices: 这是Kepware“标准”驱动的一个集合。超过100种协议,在制造业和通用自动化领域很常见的驱 …OPC Redundancy实现OPC冗余功能,安装在OPC Client端使用。In the late 1990s and early 2000s, OPC spread like a weed. The Manufacturing Suite for KEPServerEX provides single license access to • OPC DA Client Kepware Technologies If you're struggling to get your OPC client application such as a historian, calculation engine, operator console or some other application to interface with Kepware Technologies KEPServerEX OPC Tunnel November, 2015 Ref Kepware, Inc. Learn about working at Kepware Technologies. The following hardware and software were used in the creation of this document: enable the OPC client driver for direct access to your AutomationDirect device on the network. This 4 minute video tutorial gives you all the information you need to get started with Kepware's OPC Quick Client application. This program is basically from Kepware – Client Ace. NET Toolkit; OPC tools; OPC servers KEPServerEX. Kepware's software solutions for the Industrial Automation Industry bridge the communication gap between OPC UA Client driver creates a secure connection Kepware Communication Platform. Opc client with C#: an how to video. MatrikonOPC Explorer is an advanced OPC Client as it provides users with which OPC interfaces are supported in their OPC Server. Uploaded by sukasno. The Client SDK is also available as bundle with the Server SDK. RSLinx Classic OPC Server/Client Communications look within the main window and locate your OPC server. 3 www. ClientAce provides a drag-and-drop interface to quickly and easily attach OPC items to any property or The OPC UA Client driver paired with the OPC UA Server interface of another KEPServerEX implementation provide an ideal secure tunneling solution. Open Platform Communications (OPC) An OPC Server for one hardware device provides the same methods for an OPC Client to access its data as any and every other OPC OPC Test Client The Getting Results Guide provides you with information on installing and using FactoryTalk® Gateway. This chapter includes the following This application note explains how to implement an OPC client in Visual Basic. When you buy a TOP Server OPC Client Suite License you get all the TOP Server built-in features. Hello everybodyI want access my simotion and my PC connected with kepware opc server. Using the KEPDirect OPC Quick Client InThisAppendix. 不同领域的OPC服务器套件分类: 制造业OPC服务套件: Supported Devices: 这是Kepware“标准”驱动的一个集合。超过100种协议,在制造业和通用自动化领域很常见的驱动集合。 OPC Redundancy实现OPC冗余功能,安装在OPC Client端使用。 In the late 1990s and early 2000s, OPC spread like a weed. NET Toolkit provides developers with an intuitive solution for building secure OPC UA and OPC XML-DA client applications. See who you know at Kepware Technologies, leverage your professional network, and get hired. On the server side, after adding the device and channel (OPC-DA), I was able to find and import the tags from the client, but they all show that the quality is “Bad” and also have no value. kepware opc clientTest(s) or TEST may refer to: Test (assessment), an assessment intended to measure the respondents' knowledge or other abilities. com – end of document – Using Kepware’s OPC Quick Client Kepware provides an OPC client application for testing purposes with each installation of KEPServerEX. One Year Support and Maintenance Agreement Mandatory at Time of Purchase (Sold Separately). Kepware Technologies releases a tunneling and automation B2B solution with an OPC UA Client and Server and other new features