Lika Electronic extends the Ethernet protocol encoder range, introducing a comprehensive series of singleturn and multiturn encoders with Modbus/TCP interface.
Following the popularization and promotion of the networks based on Ethernet and TCP/IP in the field of the industrial automation worldwide, Lika further complements the Ethernet protocol encoder family and launches the new Modbus/TCP series, just a few months after the recent Powerlink series.
Modbus over TCP/IP is an extension of the popular Modbus RTU protocol to replace the serial connection with Ethernet technology. According to a recent research report, serial Modbus is estimated at 7% of the overall market share, while Modbus/TCP is at 3% currently. Both they are among the market-leading protocols; furthermore they are commonly and homogeneously used worldwide, from USA to Europe and Asia. Among the reasons behind such popularity are simplicity and ease of interface, low-cost development, minimum hardware requirement and high reliability. Modbus/TCP is user-friendly and basic and can be implemented fast and uncomplicated.
Lika encoders with Modbus/TCP interface are available in three series:
• a low cost 27-bit resolution multiturn EM-series with robust magnetic sensing intended for general purposes
• an optical 18-bit singleturn HS- series for high precision demands
• a high resolution 30-bit multiturn HM-series with optical sensing aimed at high end applications
They are designed in a complete selection of mechanical models: solid shaft version with 6, 8, 9.52, 10 and 12 mm (0.24”, 0.31”, 3/8”, 0.39”, 0.47”) diameter and servo or clamp flange mounting; and blind hollow shaft version with 14 and 15 mm (0.55”, 0.59”) diameter. The industrial 58 mm flange enclosure provides IP65 protection; the work temperatures are allowed in the -25°C +85°C (-13°F +185°F) range. M12 connectors and cables comply with Ethernet requirements. Modbus/TCP encoders implement the full set of information and configuration parameters: position and velocity readout, full scaling, preset, code sequence, extensive diagnostics, Ethernet network settings.
Parameters and diagnostics can be easily managed either by means of the HTML pages of the integrated web server or by using a generic PLC.
(Modbus/TCP protocol does not require specific PLC) or any Ethernet connected device in compliance with the “Modbus over TCP/IP” protocol. LEDs for visual diagnostic information (operating status of the interface and the device) are further installed.