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Published on Aug 22, 2017
Simple way to communicate with Modbus RTU devices using Modbus TCP instead. The Raspberry Pi is acting as both a Modbus TCP slave and Modbus RTU master. The Node RED flow simply maps the slave commands over to the RTU addresses.
Parts List: WAGO 750-8101 PFC100 Ethernet PLC 750-473 4ch AI Module 750-600 End Module 787-1602 24VDC 1A Power Supply 734-106 6 conductor MSC Mini Male 734-306 6 conductor MSC Mini Female 8002-025-000-007 WAGO USB Charging Station 289-175 RJ45 Interface Module 221-415 5-Position Lever Nuts 2002 Series Terminal Blocks
TECO L510 VFD Baldor AC Motor 56J Raspberry Pi Zero W USB-RS485-WE USB to RS485 Adapter DIN Mount for Pi Zero (http:\\www.DINrPlate.com)