In the manufacturing industry, data-driven insights offer the most effective method for enhancing efficiency and flexibility. PoE manufacturing networks provide a compelling array of benefits to address the demands and challenges of industrial environments by streamlining operations, cutting costs, and paving the way for truly smart factories.
Power over Ethernet (PoE) is a technology that enables the simultaneous delivery of power and data to connected devices via a single Ethernet cable.
By eliminating the need for separate power cords, PoE:
- Simplifies cabling infrastructure.
- Lowers installation costs.
- Enables the flexible deployment of smart devices, including sensors, controllers, and monitoring systems.
The higher data rates of PoE can enhance overall system performance, reduce energy loss, and increase energy efficiency by offering features that optimize power transmission. PoE centralizes power management for manufacturing networks, improving the overall efficiency and scalability of modern industrial automation.
High PoE refers to a category of standards developed by the Institute of Electrical and Electronics Engineers (IEEE). These are the newest and most powerful standards, including 802.3bt, Type 3 (PoE++, UPoE), and Type 4 (Hi-PoE). Type 3 PoE++, also called Universal PoE (UPoE), delivers up to 60 watts of power per port. Type 4 PoE++ delivers up to 100 watts per port. These standards all utilize the four twisted wire pairs in an Ethernet cable to transmit network data and power.
Any system that incorporates power-hungry devices, such as those used in the manufacturing industry, can leverage high PoE to its benefit.
- High-power sensors
Manufacturing networks rely heavily on sensors to collect data on parameters like temperature, vibration, pressure, and quality control. For more precise monitoring of processes, high PoE supports the more sophisticated and accurate type of sensors that require more power to operate.
- Robotic arms
Modern industrial robots require a substantial amount of electricity to function. High PoE can power advanced robotics components, such as integrated cameras, sensors, and complex end-of-arm tooling, while streamlining connectivity and reducing cable clutter.
- Environmental monitors
To ensure optimal conditions for production, manufacturers can utilize high PoE to power devices that monitor air quality, humidity, and other environmental factors in sensitive manufacturing areas.
- Actuators and control devices
As automation becomes more common, factories will require an increasing number of actuators and control devices. High PoE not only supports these components, but it also simplifies installation processes and eliminates the need for separate electrical wiring.
- Automated guided vehicles
Batteries typically power automated guided vehicles (AGVs). High PoE can power charging stations or onboard communication and navigation systems.
- High-resolution IP cameras
Manufacturers utilize high-resolution IP cameras for quality inspection, process monitoring, and defect detection purposes. High PoE provides the power needed to operate PTZ (pan-tilt-zoom) cameras, which require a higher power draw for their movement and zoom capabilities.
- High-performance wireless access points (WAPs)
Robust and widespread Wi-Fi coverage is essential for mobile devices, asset tracking, and real-time data access in large manufacturing environments. Powering multi-radio, high-performance WAPs, high PoE ensures reliable wireless connectivity across the factory floor.
- PoE-powered LED lighting
Intelligent LED lighting systems in manufacturing facilities centralize control, dimming capabilities, and seamless integration with smart building management systems. Incorporating high PoE to power these lighting systems provides energy savings in addition to improved working conditions.
How do higher data rates in PoE contribute to greater energy efficiency?
The higher data rates provided by PoE technology play a significant role in enhancing overall energy efficiency. By allowing them to complete their data transfer tasks more quickly, the time devices spend in energy-intensive active states goes down; devices will transition more rapidly to lower-power idle or sleep modes. Faster communication means devices work smarter, not harder, for substantial energy savings.
Time-division Multiplexing (TDM)
In TDM, data and power transmission occur in separate time slots. Data streams are first divided into frames, and then further divided into multiple time slots. The number of signals needing to be transmitted and the available bandwidth determine the number of time slots per frame. Thanks to higher data rates, the transmission of more data within a single time slot enables more efficient use of transmission time.
The types of TDM include:
- Synchronous TDM: To ensure that each signal transmits at the same rate and in the correct order, signals are transmitted in fixed time slots, synchronized by the transmitter’s clock.
- Asynchronous TDM: To allow signals with different data rates to transmit over the same channel, they can be assigned a timed slot without being synchronized to a master clock.
- Statistical TDM: Rather than setting fixed slots, slots vary depending on the amount of data transmitted. This variation allows for more efficient use of the channel.
The result of TDM is a reduction in idle periods and optimization of energy use.
Advanced data compression
During the data compression process, data is encoded, restructured, or modified to reduce its size. Software then re-encodes information using fewer bits than the original representation. Higher data rates drive the need for advanced data compression techniques. Reducing the overall amount of data leads to shorter transmission times and lower power consumption.
Operating at the session layer (OSI Layer 5), advanced compression methods compress homogeneous data sets for all application types, generating higher system throughput and minimizing latency.
PoE for Manufacturing Networks
PoE is ideal for manufacturing networks thanks to the following benefits:
- Simplified installation and deployment.
- Reliable power and data.
- Increased productivity.
- Interconnectivity and accessibility.
- Flexibility and adaptability.
- Cost-effectiveness.
PoE supports dynamic production environments where devices need to be added or relocated frequently without the need for rewiring, enabling the deployment of advanced technologies, such as AI and IoT, in manufacturing.
The D62-040-30 Managed L2 Industrial PoE switch from Versa Technology features four 30W 802.3bt PoE output ports and one 90W 802.3at PoE input port. With an operating temperature range of -40 °C to 75 °C, the switch provides robust outdoor connectivity for industrial applications. The switch also features E-MAP topology view, floor view, and Google view, allowing users to pinpoint IP device locations for easy management.
Editor’s Note: Contact Versa Technology for more information on industrial PoE solutions for manufacturing networks.
