Replacing ABB DSQC 351: Controller and Network Checks
Checks to record before replacing ABB 3HNE 00006-1 DSQC 351: controller generation, X3/X5/X20/X21 wiring, DeviceNet settings, INTERBUS mapping, and LED states.
Manufacturer: BECKHOFF
Product No.: CX2550-0020
Country of origin:Germany
Product Type: Embedded PC Accessories
Payment: T/T, Western Union
Weight: 290g
Dimensions: 24 mm x 99 mm x 125 mm
Shipping port: Xiamen
Warranty: 12 months
The BECKHOFF CX2550-0020 is a dedicated storage extension module designed for integration with CX20xx series Embedded PCs. This module provides an accessible, physical slot to accommodate and interface a standard 2.5-inch SATA hard disk drive (HDD) or solid-state drive (SSD) directly into the modular controller assembly.
By connecting directly to the system bus of a CX20xx CPU, the BECKHOFF CX2550-0020 provides localized high-capacity storage capability. This architecture is particularly suitable for data-intensive automation tasks, local database management, operating system hosting, and extensive historical data logging at the machine level.
Power is drawn internally through the system bus, utilizing the connected CX2100-0xxx series power supply modules. This eliminates the need for auxiliary external power cabling and maintains a clean, compact footprint within the control cabinet.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Model | CX2550-0020 |
| Product Type | Storage Extension Module |
| Compatible System | CX20xx Series Embedded PCs |
| Drive Interface | SATA |
| Slot Form Factor | 2.5-inch HDD or SSD |
| Power Supply | Via system bus (through CX2100-0xxx power supply modules) |
| Dimensions (W x H x D) | 24 mm x 99 mm x 125 mm |
| Weight | Approx. 290 g (without medium) |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Vibration Resistance | Conforms to EN 60068-2-6 |
| Shock Resistance | Conforms to EN 60068-2-27 |
| EMC Immunity / Emission | Conforms to EN 61000-6-2 / EN 61000-6-4 |
| Protection Class | IP20 |
When replacing a BECKHOFF CX2550-0020 module, always perform a complete backup of the data residing on the installed HDD or SSD. Power down the system entirely before removing the drive or detaching the extension module from the main controller assembly. Re-insert the existing storage drive into the replacement module to preserve system configuration, license, and partition tables.
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Returns & Warranty

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Returns & Warranty
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| Country of origin |
Germany
|