2.4GHz Resolves reliability of wireless automation
Despite the widespread adoption of wireless for data communications, its use in industrial automation safety related applications has been much slower. According to Schneider Electric, a thorough assessment and proven technology will address the perceived reliability issues.
A factory floor provides challenges to wireless automation networking. A range of factors can adversely affect radio transmissions when used on the factory floor. A proper consideration of the installation will avoid any reliability problems.
However, using the 2.4GHz frequency is now popular as its signal reliability is stronger than the traditional lower frequencies. It doesn’t require a specific license to be used worldwide, and. has universal acceptance
New, high reliability wireless technology, like Bluetooth Low Energy, further improve confidence in the reliability of mobile wireless control systems. It uses a floating frequency hopping mechanism, to avoid possible interference from other devices operating on the same frequency channels.
The importance of maintaining network availability requires high frequency network protocols, which can limit the range of communication. The latest advances in wireless technology, related to the development of smart antennas, solves this issue. They increase or decreasing the working distance of the system to the adapted values for the specific application. When using wireless remote control systems in safety applications, the working range must be limited to the precise area from which the operator controls the machine
The increased use of networked automation devices and wireless remote control systems adopted has led to concerns over data and network security. OEMs and end-users need to adopt a multi-layer security approach, which provides numerous barriers and levels of protection.
With safety applications, the reliability and security of the system remain paramount. The use of specific functions, such as code sequencing and encrypted communication, help to protect against external attacks. To protection from non-malicious, the education of operators and improved operating procedures are important.
Wireless remote control devices may get lost or broken, with time-consuming impact on overall productivity. However, some wireless remote control systems use a pairing procedure enabling fast and easy replacement of the remote control device. The Schneider Electric system is an example of this technology.
The replacement process is both quick and simple. The new remote control device simply pairs with the existing installation. The base station configuration on the bridge of the crane then downloaded the parameters via radio to the replacement remote device.
Wireless remote control systems must be compliant with the relevant standards. These can be general standards pertaining to radio emissions and functional safety, or can be for specific types of machinery.
See how Schneider wireless technology is changing the face of safety applications
Recent blog posts