11/8/2022 0 Comments Modbus rtu interface![]() With no need for backup batteries or complex gear systems, maintenance costs are virtually zero. This ensures that each complete rotation is reliably recorded, even when power to the control system is unavailable. For multi-turn models, the rotation counter is powered by a Wiegand sensor that harvests energy from the rotation of the device’s shaft. ![]() Customers can also choose between single- and multi-turn measurement ranges. Customers can select exactly what they need in terms of housing material and levels of environmental protection, shaft type and diameter, mounting flange, and connector type. Posital IXARC encoders with the Modbus RTU interface are available in a wide range of mechanical configurations. This combination can communicate reliably over distances of more than 1,000 metres, even in the presence of electromagnetic interference (EMI). The Modbus RTU protocol makes use of the RS485 transmission standard, based on shielded twisted pair cabling. In addition to solar installations, the interface is used in packaging lines and mobile machinery. Available for almost four decades, it is supported by many programmable logic controller manufacturers. Modbus RTU is a low-cost, easy-to-implement communications protocol that is commonly used in mid-sized control systems (up to 32 nodes). ![]() This interface has recently experienced a surge in popularity for use in solar installations. ![]() A recent example has been the expansion of the company’s series of rotary encoders and inclinometers to include models with the Modbus RTU communications interface. Along developing exciting new products, Posital continuously updates its established product portfolio to improve performance and meet emerging needs. ![]()
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