ABB RVT Serie Instrucciones De Instalación Y De Funcionamiento página 584

Industrial IT
Industrial IT Architecture
Industrial Enabled
IT
Loopback
Long Integer
LRC
Measurement
Modbus adapter
OPC
OPC Servers
20 – Appendices ç RS-485
Umbrella concept for ABB's vision for enterprise automation.
The architecture of the Industrial IT system. The architecture
defines how the system is built, in terms of basic concepts,
underlying technologies, system topology, modularity, and
mechanisms for interaction between different parts of the
system. It also defines concepts, rules, and guidelines that a
component must comply with in order to fit in the Industrial IT
system. A central feature of the IIT architecture is that information
and functions are centred on Aspect Objects.
A product that is Industrial IT enabled has been verified according
to the process of Industrial IT certification. It has the right to use
the "Industrial IT enabled" symbol.
A test used for checking functionality of a serial port, utilizing a
test plug that connects send, receive and handshaking signals
Analog value consisting of two consecutive 16-bit registers
Longitudinal Redundancy Check
A measurement is a value computed by the controller through its
analog and digital inputs. Measurements can be read from the RVT
front plate, or through the Modbus protocol.
It is an optional small interface module through which the RVT is
connected to an external Modbus serial communication bus. It
performs an optical to RS485 conversion. The communication with
the Modbus adapter is activated with an RVT parameter.
OLE™ for Process Control. OPC is Plug-n-Play in the field of
Automation and HMI. OLE™ for Process Control (OPC™) is the
most standard way for connecting hardware and data devices
with HMI client applications.
OPC is a concept agreed upon by a committee of members from
the OPC foundation. Most automation companies in the market
place including ABB are members of this foundation. OPC uses
state-of-the art technologies like COM, DCOM, ActiveX of
Microsoft and makes development and programming easier.
In the OPC world, there are two major types of applications: OPC
Servers and OPC Clients.
OPC Server applications are used to collect data from the data
sources like hardware devices. At the bottom level, the servers are
mainly for reading inputs and writing outputs of the data sources.
At the upper level, the servers make the data available in a
standard way to the OPC client applications.