The leading fieldbus cable and connectors in the world are frequently referred to as PROFIBUS cables and PROFIBUS connections. So, PROFIBUS is essentially a fieldbus communication standard for automation technology; it is an industrial control network used for motion control, safety networks, factory automation, and other applications.
Design, installation, and maintenance costs can be significantly reduced by using a PROFIBUS cable and PROFIBUS connections.
An international fieldbus communications standard called PROFIBUS (Process Fieldbus) is used to connect modules for process control and industrial automation.
A single multi-drop connection is utilised to link all devices instead of connecting separate cables from a primary controller to each sensor and actuator, and high-speed, bi-directional serial messaging is used for information exchanges.
Origin of PROFIBUS Connectors and Cable
The necessity to develop and promote the usage of a bit-serial fieldbus based on the fundamental specifications of the field device interfaces gave rise to PROFIBUS cable and PROFIBUS connectors.
The convoluted PROFIBUS FMS (Fieldbus Message Specification) communication protocol was first defined.
Subsequently, the specification for PROFIBUS DP (Decentralized Peripherals), a much simpler and quicker protocol, was finished. In its stead was FMS.
The advantages of utilizing PROFIBUS connectors and cables
When compared to more traditional techniques, using a PROFIBUS cable and PROFIBUS connections offers significant cabling cost reductions.
Devices from many different manufacturers may be easily connected using PROFIBUS cable and PROFIBUS connectors, which can also lower the cost of installation, commissioning, fault-finding, and related plant downtime.
Features of PROFIBUS Connectors and Cable
Reduced operating expenses, increased output, quicker time to market for new goods, and better product quality are some features connected with PROFIBUS connections and cables.
A PROFIBUS cable and PROFIBUS connections, in contrast to a typical fieldbus cable and connectors, may accommodate up to 32 devices per segment, or up to 126 devices in total, depending on the total system current.
What are the most significant variations of PROFIBUS Cable and PROFIBUS Connectors?
Currently, there are two types of PROFIBUS cable and connectors on the market: the more popular PROFIBUS DP and the less popular PROFIBUS PA versions.
PROFIBUS DP (Decentralized Peripherals)
In this instance In industrial technology, sensors and actuators are controlled by a centralised controller using PROFIBUS cable and PROFIBUS connections.
Particular attention is paid to the several conventional diagnostic choices here. Additional applications involve networking “distributed intelligence,” or various controllers, to one another (similar to PROFIBUS FMS).
Using twisted pair cables and/or fibre optics, data speeds up to 12 Mbit/s are feasible.
PROFIBUS PA (Process Automation)
Process engineering uses this particular PROFIBUS cable and PROFIBUS connection configuration to monitor measurement equipment through a process control system.
Ideal for locations at risk of explosion. Here, a weak current circulates through the bus lines in an inherently safe circuit to prevent the creation of explosive sparks even if a failure takes place. The reduced data transfer rate of 31.25 kbit/s of this type of PROFIBUS cable and PROFIBUS connectors is a drawback.
The only fieldbus cable and connectors that can be utilised equally in production automation and process automation are PROFIBUS cables and connectors, which have subsequently established themselves as a market leader. According to estimates, there are more than 20 million PROFIBUS connections and cables in use globally (as of 2007).
ProfiNet, a completely distinct Ethernet-based communications standard used for process monitoring and control over Cat 5 (or similar) twisted pair cables, as is most usually used for connecting office PCs, should not be confused with PROFIBUS DP or PROFIBUS PA.
Should a PROFIBUS Cable/PROFIBUS Connectors and Power Cables be spaced apart?
Every other power cable should always be set apart from PROFIBUS cable and PROFIBUS connectors.
Parallel high voltage power lines might produce interference that can affect PROFIBUS connections and cables as well.
Always strive to leave at least 10 cm of distance between power cables and PROFIBUS cables and connections (depending on the level of the voltage).
Some users combine power cables, PROFIBUS cables, and VIPA PROFIBUS connectors in a single cable tray, which frequently results in unpredictable behaviour. Crossing PROFIBUS cables, PROFIBUS connectors, and power cables won’t result in issues, though.
Correct shielding is also necessary; establishing distance is not enough.
Additional notes and advice on PROFIBUS cables and connectors
- Consistently utilise PROFIBUS cables and connectors.
- 32 devices maximum per section (including repeaters, OLMs and couplers)
- Check that the segment length and baud rate are different;
- Assure powered termination on both ends for every segment;
- Don’t use spur lines;
- Be careful not to switch the wires (A=green, B=red); and
- Update the drawings to reflect the actual length of the wires.
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