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TMDSPLCKIT-V3
TI Delivers Flexible Power Line Communications Solutions
September 2010
2
Texas Instruments
Developing an efficient PLC implementation is not without its challenges. Power lines are inherently noisy
and require a robust architecture to ensure data reliability. In addition, each application and operating
environment is different, requiring developers to optimize designs and accommodate a variety of factors.
PLC implementations that are too fixed in function can only be applied in a limited number of applications
and represent a risky design strategy as standards continue to evolve. Developers need a flexible platform
that enables them to optimize designs to the particular requirements of each application and that will allow
designs to adapt to new standards and market opportunities as they arise. In this way, intellectual property
can be reused across multiple applications to accelerate development and speed time to market while
expanding market opportunities.
A key part to achieving flexibility is a modular architecture in terms of hardware and software. Breaking
down complex PLC systems into a number of independent subsystems allows developers to change one
aspect of a design – such as the modulation scheme or protocol used – without having to completely
redesign the entire system.
and require a robust architecture to ensure data reliability. In addition, each application and operating
environment is different, requiring developers to optimize designs and accommodate a variety of factors.
PLC implementations that are too fixed in function can only be applied in a limited number of applications
and represent a risky design strategy as standards continue to evolve. Developers need a flexible platform
that enables them to optimize designs to the particular requirements of each application and that will allow
designs to adapt to new standards and market opportunities as they arise. In this way, intellectual property
can be reused across multiple applications to accelerate development and speed time to market while
expanding market opportunities.
A key part to achieving flexibility is a modular architecture in terms of hardware and software. Breaking
down complex PLC systems into a number of independent subsystems allows developers to change one
aspect of a design – such as the modulation scheme or protocol used – without having to completely
redesign the entire system.
•
Modulation Scheme: Flexibility at the hardware level enables developers to implement the most
efficient modulation scheme for a particular application. For example, several modulation schemes are
available for narrowband communications, including spread frequency shift key (S-FSK) and orthogonal
frequency-division multiplexing (OFDM) modulation. With a choice of modulation schemes, developers
can evaluate the effectiveness of each before selecting one to use in a design.
available for narrowband communications, including spread frequency shift key (S-FSK) and orthogonal
frequency-division multiplexing (OFDM) modulation. With a choice of modulation schemes, developers
can evaluate the effectiveness of each before selecting one to use in a design.
•
Communication Protocols: For purposes of interoperability, devices may need to be compliant to a
particular protocol standard. By utilizing a flexible platform, developers can easily implement all of the
popular PLC standards – including SFSK (IEC61334), PRIME and G3, as well as keep devices up-to-date
as standards continue to evolve. Additionally, it becomes a simple process to migrate designs to new
applications – and therefore standards – without having to completely redesign hardware or firmware.
popular PLC standards – including SFSK (IEC61334), PRIME and G3, as well as keep devices up-to-date
as standards continue to evolve. Additionally, it becomes a simple process to migrate designs to new
applications – and therefore standards – without having to completely redesign hardware or firmware.
Figure 1. With the Texas Instruments (TI) plcSUITE
™
developers can optimize their designs to specific
requirements of an application with the assurance they can adapt to new standards and opportunities as
they arise.
The Power Line
Communications
Challenge