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POSITAL offer several new encoders that support the ongoing demand for MODBUS RTU. For example, the POSITAL UCD-M200B-1516-HFSS-PRM. Modbus RTU is an RS485 serial Industrial communications protocol, that came about in the early 1980’s. MODBUS RTU Hollow Shaft Encoder MODBUS RTU Solid Shaft Encoder In those days' some PCs running early SCADA software used serial comms. Modbus RTU was by far the favourite protocol and became well known, easily understood and supported. The MODBUS RTU development patents have long since expired, allowing developers to utilise the technology royalty free, making

Rotary encoders are complex electro-mechanical devices that have intricate electronics and moving parts. To ensure the reliability expected of industrial and manufacturing processes, encoders need to be designed to last and must be built with long-lasting component and materials. In industrial applications the cost of a failure is significantly more than the replacement cost of the encoder. However, price is never “no object”, and systems integrators and engineers are under constant pressure to complete projects with smaller budgets. Cheap hobby encoders are available, but they do not meet the

For many years the most commony used PLCs in Australia communicated via DeviceNet. However, integrators are now favouring the new Ethernet based Industrial Protocol; Ethernet/IP. It is no surprise that PCA’s most commonly stocked and sold absolute encoders are the Ethernet/IP encoders. Ethernet IP Rotary Encoder PCA’s Ethernet IP encoders from POSITAL are either single-turn or multi-turn, with variants offering a resolution of up to 16 bits per revolution. As with all POSITAL optical encoders, a variety of mechanical options are available including different flanges, environmental protection

Industrial applications usually involve challenging environmental conditions, which many sensitive measurement devices are not designed to handle. Position feedback and displacement sensors such as rotary encoders are one example, as their electro-mechanical design with moving parts makes them particularly vulnerable. Conditions that a Rugged Encoder Should Be Able to Withstand If you are selecting an encoder for use in a heavy-duty application, or harsh environment there are 5 attributes that need to be considered: Ingress protection rating Resilience to shock Tolerance of vibration Ambient

CAN (Controller Area Network) is the most widely used industrial communications protocol in the world, with more nodes in use than any other protocol. In fact, all modern cars use it. CANopen is not the fastest communication protocol but it is very reliable. As well as a node number, all devices are given a priority level, ensuring that the important information reaches its target destination. Hence, it is the preferred communications protocol for mobile machinery manufacturers and integrators. PCA Encoders offer a wide range of CANopen encoders, such as the POSITAL UCD-CA01B-1212-HFSS-H3P

The 4-20mA analog output absolute encoder is one of easiest to understand. Many absolute encoders provide their position information via a communications fieldbus protocol, such as Ethernet I/P, CanOpen, EtherCAT, Profibus etc, to the control or display system. In order to test, check, or fault find such a fieldbus system you need special programming tools and access to the programming environment. This usually entails a laptop, some special software, cables, and some training. The advantage of a 4-20mA analog signal from the encoder, means that anyone with a multi-meter can quickly check the

When you install a rotary encoder the following important factors need to be ensured: Location, location, location! The questions you should be asking yourself are: Am I going to get accurate measurement results at this location. Things to consider, vibration, slip, speed limitations before or after a gearbox..etc Is the encoder protected from the being knocked or bumped because it is protruding out? Is it exposed to the elements or rain. Is it exposed to high temperature such as mounting directly onto the back of a motor. Not considering these protection factors can not only affect the

The Motrona GV210 is a highly versatile pulse switch, distributor and splitter that can be used for various applications such as: Dual level converter Encoder splitter (dual output) Encoder signal switcher: Dual Level Encoder Converter The GV210 allows you to take a single encoder signal and connect to a variable speed drive (VSC) for closed loop speed control, as well as sending it to a PLC/HMI for position indication readout. For example, it can convert HTL 24V signals (Push-Pull) to TTL 5V signals (such as RS422), and vice-versa. Encoder Splitter Dual Output As a switcher the Motrona GV210

PCA are experts in supplying incremental encoders within a very short time frame and stock a range of magnetic programmable encoders. Advantages of Magnetic Programmable Encoders These feature the Wiegand sensor technology. Not only does this enable the encoder to detect the location of magnets rotating within, it also generates a small amount of power to energise itself. This negates the need for complex gear arrangements and batteries often found in similar featured encoders. This makes the encoder extremely reliable, and very affordable. Programmable encoders can be custom configured to

PCA Encoder's is proud to be Australia’s distributor of POSITAL encoders. Advantages of Programmable Encoders For many years, PCA Encoders had the advantage over most other Australian encoder suppliers, as we would assemble and test encoders in our Sydney facility, and deliver encoders within days of an order being placed. Whereas other encoder suppliers, who could not possibly keep every encoder variation on the shelf, had to import stock from overseas, which usually took weeks. Local assembly and testing of encoders is still done by PCA in our Sydney workshop, but mainly for specialist types