X20CP1685 B & R Automation
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The B & R Automation X20CP1685 is part of the X20 Fieldbus Input Output Modules series and features a 0.8 GHz CPU with 512 MB DDR4 RAM and 1 GB onboard flash. It offers 1 Powerlink port, 1 RS232 port, 2 USB ports, and supports CompactFlash removable memory. This module measures 150 mm in width, 99 mm in height, and 85 mm in depth, with a bus power consumption of 0.2 W.
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Product Description:
The X20CP1685 belongs to the X20 Fieldbus Input Output Modules series developed by B&R Automation. It functions as a compact control and communication node that mounts beside remote I/O slices, coordinating signal exchange between decentralized sensors, actuators, and the higher-level network in an industrial automation cell. By merging processor resources, memory, and multiple fieldbus interfaces into one housing, the unit reduces cabinet space while maintaining deterministic data flow for motion, safety, and process tasks. This arrangement supports centralized logic while keeping I/O close to the machine devices they serve on the same rail.
A processor clock of 0.8 GHz drives program execution, while the board carries 512 MB of DDR4 RAM for dynamic variables and 1 MB of SRAM for battery-backed retentive data. Long-term code and recipe storage is handled by 1 GB of onboard flash, and a CompactFlash slot allows removable media to expand this capacity without opening the enclosure. Electrical loading on the system backplane is minimal: the module draws only 0.2 W of bus power and requires a separate backplane supply of 7 W to support internal circuitry. One interface slot links the CPU to additional communication modules, and two USB service ports support local data transfer and diagnostics. The memory mix lets the controller manage application code, runtime data, and removable storage without requiring a larger housing.
The controller distributes field voltage through an internal I/O rail rated at 240 W, ensuring that attached slices receive stable power. Gigabit communication is available through an integrated Ethernet port that complies with 10/100/1000BASE-T, and deterministic machine-bus traffic can be isolated on a dedicated POWERLINK channel with one port. Serial integration of legacy devices is possible through a single RS232 port, while two USB ports serve high-speed peripherals. Overall height is 99 mm and width is 150 mm, keeping the footprint small enough for standard 35 mm DIN rail frames without compromising access to the connectors. Separate network paths help keep general Ethernet traffic distinct from real-time machine communication in mixed-control architectures.
