Reliance 4 consists of these software modules:
Development Environment
Reliance 4 Design is the development environment intended for creating and editing visualization projects (applications). It is available in two versions, Desktop and Enterprise.
Desktop
The Desktop version lets you create applications of type "1 computer - any number of devices". A device is a PLC (Programmable Logic Controller) or another similar industrial automation/control device. The Desktop version does not enable you to develop network applications and applications for thin clients (Reliance 4 Web Client and Reliance 4 Mobile Client). Thus, the resulting application only allows communications between a single computer and any number of devices.
A license key purchased for Reliance Design Desktop also contains the license for Reliance View and Reliance Control with the same number of data points. The runtime license is intended to be used only for the purpose of testing and debugging applications by a systems integrator. It cannot be used for the runtime software running permanently at the end-user site.
Enterprise
The Enterprise version incorporates all the features of the Desktop version. In addition, it empowers you to develop network applications for any number of interconnected computers with "view-only" and/or "full control" access. The Enterprise version also lets you export an application for thin clients (Reliance 4 Web Client and Reliance 4 Mobile Client). Thus, the resulting application allows communications between any number of computers and devices and, at the same time, providing thin clients with data and alarms.
A license key purchased for Reliance Design Enterprise also contains the license for Reliance View, Reliance Control, Reliance Server, and Reliance Control Server with the same number of data points and the license for 3 thin clients. The runtime license is intended to be used only for the purpose of testing and debugging applications by a systems integrator. It cannot be used for the runtime software running permanently at the end-user site.
For more information, view a detailed list of Features & Benefits of Reliance 4. The size of the application you can create in the development environment is only limited by the number of data points defined by the license. You can also view the screenshots of the development environment.
Runtime Software
Reliance's runtime software is a program designed to run a visualization project on the end user's computer. Among others, it allows acquisition of data from communication drivers (native drivers, OPC and DDE servers), acquisition of data and alarms from other instances of the runtime software, generating and processing alarms, logging data and alarms, logging Postmort records, executing scripts. The runtime software supports redundancy and acts as a DDE server. These and some more features are common to all runtime software types (Reliance 4 View, Reliance 4 Control, Reliance 4 Server and Reliance 4 Control Server). In addition, each of the runtime software types has other extra features.
Reliance View
In addition to the features common to all runtime software types, Reliance 4 View allows displaying visualization windows with real-time data, displaying and acknowledging current alarms, displaying and printing historical alarms, displaying and printing historical data as historical trends and reports, and more. The program and project language can be switched at runtime.
Reliance 4 View does not enable you to control the visualized industrial process. It is intended for computers with "view-only" access, e.g. at workplaces of managers who need to view historical trends of process variables and the current status of the process but have no need to control it.
Reliance Control
In addition to the features common to all runtime software types, Reliance 4 Control allows displaying visualization windows with real-time data, displaying and acknowledging current alarms, displaying and printing historical alarms, displaying and printing historical data as historical trends and reports, and more. The program and project language can be switched at runtime.
Reliance 4 Control lets you control the visualized industrial process. It is intended for computers with "full control" access (e.g. control workplaces and centers). However, "full control" access can be limited on a per-user basis.
Reliance Server
In addition to the features common to all runtime software types, Reliance 4 Server is a data server for other instances of the runtime software and thin clients (Reliance 4 Web Client, Reliance 4 Mobile Client). It has a built-in Web server. It provides the clients with data and alarms, executes commands received from the clients and generates reports based on the clients' requests. It runs as a Windows Service and cannot display visualization windows. Therefore, Reliance 4 Server is used as a non-visual data concentrator and a data server. It is especially suitable for unmanned computers.
Reliance Control Server
In addition to the features common to all runtime software types, Reliance 4 Control Server includes all the features of Reliance 4 Control and Reliance 4 Server. It is intended for computers with enough performance to simultaneously handle the operator's requests and requests from client instances of the runtime software and thin clients (Reliance 4 Web Client, Reliance 4 Mobile Client). For large applications, it is highly recommended that you use Reliance 4 Server running on a separate server to handle the clients' requests.
For more information, view a detailed list of Features & Benefits of Reliance 4. The size of the application you can operate in the runtime software is only limited by the number of data points defined by the license. You can also view the screenshots of the runtime software.
Web Client
Reliance 4 Web Client is a program designed to run a visualization project over the Internet by remote users. It is based on the Java platform (JRE 6.0/Swing) and therefore independent of operating system and Web browser. It uses Reliance 4 Control Server or Reliance 4 Server as a data server. Reliance 4 Web Client is a thin client - it only has some of the features of the runtime software. It allows displaying visualization windows with real-time data, controlling the visualized industrial process, displaying and acknowledging current alarms, displaying historical alarms, displaying historical data as historical trends and reports, and more.
For more information, view a detailed list of Features & Benefits of Reliance 4. You can also view the screenshots of the Web client.
Mobile Client
Reliance 4 Mobile Client is a program intended to run a visualization project on mobile devices (PDAs, etc.). It is designed for Windows CE and Microsoft .NET Compact Framework 2.0. It has the same functionality as Reliance Web Client.
For more information, view a detailed list of Features & Benefits of Reliance 4. You can also view the screenshots of the Mobile client.
Communication Drivers
A communication driver is a program designed to provide communication with a hardware device. If the device is a PLC or another similar industrial automation/control device then the driver provides transmission of process data from the device to the runtime software and transmission of commands from the runtime software to the device. Communication drivers for some devices are part of Reliance (so-called native communication drivers). These drivers require a license. The price of the license differs based on the type of device for which the driver is designed. In addition, Reliance can communicate to any device for which an OPC or DDE server is available (Reliance is an OPC and DDE client).
View a list of the devices for which native communication drivers are available.
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