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PostedMonday, November 23, 2020 at 10:19 AM
Position and motion sensor specialist POSITAL has announced that it has expanded its range of absolute rotary encoders and inclinometers to include support the popular Modbus RTU communications interface.
Modbus RTU is a low-cost, easy-to-implement communications protocol that is commonly used in small to mid-sized control systems (up to 32 nodes). Available for almost four decades, it is supported by many PLC manufacturers and has been used in a wide range of applications, ranging from solar panel positioning to controls for packaging systems and mobile machinery. The Modbus RTU protocol makes use of RS485 transmission standard with unshielded twisted-pair cabling. This combination can communicate reliably over distances of up to 1,200 metres, even in the presence of electromagnetic interference (EMI).