The BNI00 Series from Balluff Facilitates Communication for Automation

The BNI00 series is Balluff’s newest IO-Link master, capable of handling up to 16 digital inputs and 8 digital outputs using several common industrial protocols. Designed with the manufacturing environment in mind, these devices are displayless and built to be rugged. These IO-Link masters are available for purchase at an entry-level price of $355.

IO-Link Master Functionality

An IO-Link master is a communication mechanism between automation devices and systems. Its communication capabilities include everything from collecting sensor data to interfacing industrial PCs to connecting with existing Programmable Logic Controllers (PLCs) in an industrial environment.

A mockup image of how the Baluff BNI00 series IO-Link master may be used with a device. Image used courtesy of Balluff

A well-designed IO-Link master can interface many devices, is easily configurable, and is built for end use, typically in automation systems. It should enhance the scalability of a system, providing the necessary communication between existing systems and allowing for additional sensors or devices to be connected as well.

The BNI00 Series IO-Link Master

The BNI00 series comes in two main varieties: the BNI00HP and the BNI00HR. The primary difference between the two is the voltage supply connector. The BNI00HP is fitted with a 2-pin A-coded connection, and the BNI00HR is fitted with a 3-pin L-coded connection. In either case, the supply voltage is the same, running on an industry standard 18-30 volts DC. The two varieties are equal in other areas, including price points and capabilities.

Each IO-Link master can handle data from up to 16 digital inputs and send data to 8 digital outputs. These channels are configurable in the software. They can use EtherNET/IP or PROFINET as their main interface, but they can also interface IIoT devices using MQTT or Rest API.

To configure the link, the device must be physically connected and powered. From there, a few network settings are established and the actual device configuration can be performed through a web browser interface.

The BNI00HR IO-Link Master. Image used courtesy of Balluff

These links are built to withstand Ingress Protection level 67 (IP67), meaning they can withstand dust, water spray, and other potential contaminants. Furthermore, the environmentally friendly injection molded plastic cases are built without potting material, which can collect sweat, dry out, or crack during thermal cycling. Potting material can also limit heat transfer away from the device, so it was avoided in this construction. Without this potting material, the devices can withstand -25 C to 55 C, making them suitable for the foundry floor or the industrial freezer.

Potential Markets

The ability to communicate between existing automation systems and expand their capability through reliable communication will benefit virtually any industrial or manufacturing facility. Balluff is a well-respected name, and they have developed communication products for industries ranging from semiconductor manufacturing to metalworking to pharmaceuticals.

Given the low cost of the BNI00 Series, they will also serve as an entry point for many small but growing manufacturing facilities interested in increasing their automation capabilities. Balluff also notes that the interface is simple to use, making it a good choice for beginners or new automation technicians.