1VCF750079801 ABB | Com Modbus (RS485)

Description

The 1VCF750079801 ABB Com Modbus (RS485) is a Modbus-compliant RS485 communication product, with technical alignments to ABB’s existing Modbus (RS485) communication portfolio. Similar ABB RS485 communication modules feature a RS485 serial communication interface supporting baud rates from 9.6 kbps to 115.2 kbps, designed for seamless integration with ABB AC 500 PLC series via backplane bus power supply, eliminating the need for external power. These modules operate in temperatures from 0 degrees Celsius to 60 degrees Celsius, with a storage temperature range of -40 degrees Celsius to 85 degrees Celsius, and carry an IP20 protection rating for cabinet-mounted industrial use. ABB’s Modbus (RS485) compatible products, such as the CM578-CN programmable controller, offer configurable RS232/RS485 COM ports with Modbus master/slave communication and ASCII functionality, plus CS31 master station support on COM1 for distributed I/O expansion and Ethernet connectivity. Typical applications include industrial automation system integration, connecting PLCs to HMIs, sensors, and variable frequency drives, as well as field device data collection via Modbus RTU protocol to enhance control system communication capabilities.