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ControlMaster CM50 as Backup for Freelance AC700F DCS Configuration Guide
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This technical document explains how to configure a ControlMaster CM50 universal process controller as a backup for a Freelance AC700F controller in a plant-wide DCS system. It details the Modbus RS485 communication setup, key features such as bumpless transfer and setpoint synchronization, and the hardware configuration required for automatic switchover upon DCS failure.
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