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: Mitsubishi Electric
Product No.: Q06UDVCPU
Country of origin:United States
Product Type: PLC CPU Modules
Payment: T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months
High-speed control operations within the MELSEC-Q platform are anchored by the Q06UDVCPU Universal Q series CPU module. This controller integrates built-in USB and RJ45 Ethernet interfaces directly onto the module, optimizing program uploads, debugging, and system integration without requiring dedicated network cards. Engineered for high-throughput production environments, the unit delivers execution times down to 1.9 ns for basic sequence instructions (LD X0).
The Q06UDVCPU features a program capacity of 60K steps (240 KB) paired with robust memory management systems, including an integrated SD/SDHC memory card slot for data logging, backup, and recipe storage up to 32 GB. Optimized for multi-CPU configurations, it allocates a dedicated high-speed communication area of 32 KB to minimize data transfer latency between multiple processors on the same backplane.
| Manufacturer | Mitsubishi Electric |
| Model / Part Number | Q06UDVCPU |
| Series | MELSEC-Q Series |
| Module Type | Universal High-Speed QCPU Module |
| Sequence Instruction Execution (LD X0) | 1.9 ns |
| Program Capacity | 60K steps (240 KB) |
| Standard RAM Capacity | 768 KB (without extended SRAM cassette) |
| Standard ROM Capacity | 1025.5 KB |
| I/O Points | 8192 points (X/Y0 to X/Y1FFF) |
| Communication Ports | 1 x USB (Mini-B), 1 x Ethernet (RJ45) |
| Memory Interface | SD/SDHC Card (up to 32 GB) |
| Multi-CPU Shared Memory | 32 KB (High-speed communication area) |
| Memory Write Endurance | Up to 100,000 writes (Program memory & Standard ROM) |
| Height | 98 mm |
| Width | 27.4 mm |
| Depth | 115 mm |
| Weight | 0.20 kg |
| Interface / Port | Connector Type | Functionality |
|---|---|---|
| Ethernet Port | RJ45 | 100BASE-TX/10BASE-T communication, programming, and GX Works2 connection |
| USB Port | Mini-B USB | Direct peripheral connection, system parameter configuration, and diagnostic monitoring |
| SD Memory Card Slot | SD/SDHC Slot | External memory expansion up to 32 GB for data logging, backup, and firmware operations |
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Returns & Warranty

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Returns & Warranty
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| Country of origin |
United States
|