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General Various protocols are made to transmit data points as they are generated. This is enough for a lot of systems (e.g. SCADAs) that have their own databases and devices only have to buffer fairly recent messages in case of connection or transmission erro...

Devices sheet contains all devices to be configured on the gateway. Each row represents one device and its settings. Following options are required for each device: name - Name of the device. Used for representation only. description - A short description ...

Overview Elgama protocol is used for communications with Elgama elektronika electricity meters. Configuration Available meter types (use number only): 0 ­ EPQM/LZQM 1 ­ EPQS 2 ­ GAMA300 3 ­ GAMA100 4 ­ ITS cl Elgama parameters for Device tab ...

Introduction IEC 61107 or currently IEC 62056-21, was an international standard for a computer protocol to read utility meters. It is designed to operate over any media, including the Internet. A meter sends ASCII (in modes A..D) or HDLC (mode E) data to a ne...

Introduction IEC 62056 is a set of standards for electricity metering data exchange by International Electrotechnical Commission. The IEC 62056 standards are the international standard versions of the DLMS/COSEM specification. DLMS or Device Language Messag...

General The virtual device is a device that you can use to calculate additional math or keep a counter. It doesn't bind to any protocol and only works when its math expression is used.  Virtual device functionality is only available since firmware version v1...

As of WCC Lite version v1.4.0, there are three separate ways to import the configuration: import an Excel file via the web interface, generate compressed configuration files and later upload them via the web interface; or generate compressed configuration file...

Signal value might require some recalculation or signal update prior to being sent. Understandably, existing columns in Excel configuration like multiply, add, bit_select might not be flexible enough. To overcome these limitations, symbolic mathematical expres...

The signals sheet contains all signals linked to devices. Each signal is defined in a single row. The Signal list can be split into multiple sheets. Each sheet name may start as Signals. Required attributes These attributes are mandatory for every configured...

Overview The WCC Lite contains several internal data points for readout and control which can be accessed via the Pooler service. Configuration Devices section In the devices section, only the protocol, scan_rate_ms and poll_delay_ms are to be configured f...

Introduction MQTT (short for MQ Telemetry Transport) is an open OASIS and ISO standard (ISO/IEC PRF 20922) lightweight, publish-subscribe network protocol that transports messages between devices. The protocol usually runs over TCP/IP, although its variant, M...

IEC 64199 standard introduced requirements for a distributed control. This means that multiple devices can change information between them and make their own decisions based on the data they receive from other sources. This enables distributed applications bet...

After the PLC design is finished and debugged, such design can be compiled into FBOOT file and uploaded to one or multiple devices to be used in production. As application being debugged is not automatically considered as a default application, one should be u...

After a project has been built and binded to an existing Excel configuration, a user would normally want to check if every part is working according to the prior requirements before compiling finished project and uploading it to production. Both 4Diac framewor...

To use WCC Lite as a programmable logic controller, it needs to be configured in a particular way. The PLC functionality of the WCC Lite only allows for the use of data that is has been configured in the Excel configuration spreadsheet. This has been done for ...

The best way to understand basics of 4Diac and WCC Lite collaboration is through an example project. This user manual intends to show the pieces needed to run PLC applications on WCC Lite. It is not intended to be definitive guide on how to use 4Diac IDE or ho...

The PLC functionality in the WCC Lite is implemented using Eclipse 4diac framework, consisting of the 4diac IDE and the 4diac FORTE runtime. The system corresponds to IEC 61499, an extension of IEC 61131-3. For more in-depth instructions and function block r...

IEC 61499-1 defines the architecture for distributed systems. In IEC 61499 the cyclic execution model of IEC 61131 is replaced by an event driven execution model. The event driven execution model allows for an explicit specification of the execution order of f...

Introduction Lua is a powerful, efficient, lightweight scripting language. It has been used in many industrial applications with an emphasis on embedded systems. Lua has a deserved reputation for performance. To claim to be "as fast as Lua" is an aspiration o...

Overview At command protocol is used for communications with AT Commands. Configuration At command parameters for Device tab Parameter Type Description Required Default value (when not specified) Range Min Max name s...