Description
The ABB DSTC 456 Multiplexer 5751017-L is a communication interface module designed for ABB Master and Advant automation systems. It provides redundant bus communication management by multiplexing and transferring data between redundant communication channels, improving system availability and reliability in industrial control environments.
The DSTC 456 is commonly used in ABB Master process control systems and marine automation applications where redundant communication networks are required. It supports stable data transmission between system components and helps maintain continuous operation in critical automation installations.
DSTC 456
🔹 Product Parameters
| Parameter | Description |
|---|---|
| Brand | ABB |
| Model | DSTC 456 |
| Series | ABB Master / Advant Communication Series |
| Product Name | Multiplexer For Redundant Bus |
| Part Number | 5751017-L |
| Origin / Place of Origin | Sweden |
| Product Status | Used / Refurbished Industrial Spare Part |
| Dimensions | Approx. 108 × 58.5 × 198 mm |
| Weight | Approx. 1–2.36 kg |
| Power | 120 VAC / 230 VAC, 47–63 Hz, Approx. 15 VA |
| Discontinued | Legacy ABB Master system module, available through spare parts market |
🔹 Technical Features
⚙️ Designed for ABB Master automation and redundant bus communication systems.
⚙️ Provides redundant bus multiplexing and communication channel management.
⚙️ Supports reliable data exchange between ABB control system components.
⚙️ Designed for high-availability industrial automation applications.
⚙️ Suitable for process control, marine automation, power systems, and industrial communication networks.
⚙️ Modular construction allows convenient replacement in existing ABB control cabinets.
🔹 Common Questions & Answers
Q: What is the main function of the ABB DSTC 456?
A: The DSTC 456 works as a redundant bus multiplexer, managing communication between redundant network channels and maintaining reliable data transmission within ABB control systems.
Q: Which ABB systems use the DSTC 456?
A: The module is mainly used in ABB Master and Advant automation platforms, including systems requiring redundant communication bus configurations.
Q: What is the part number of the DSTC 456?
A: The commonly identified ABB part number is 5751017-L.
Q: What are common failure symptoms of the DSTC 456 module?
A: Typical issues include redundant bus communication loss, unstable network operation, system alarms, communication channel switching errors, or loss of connection between automation modules.
Q: What should be checked before replacing the DSTC 456?
A: Confirm the exact part number, power supply voltage, redundant bus wiring, connector configuration, system architecture, and compatibility with the existing ABB Master installation.
Q: Can DSTC 456 replace other ABB communication modules directly?
A: Replacement should be based on the original system configuration because ABB Master communication modules may have different functions, interfaces, and hardware requirements.
🔹 Recommended ABB Models
- ABB DSTC 456 5751017-L Multiplexer Unit
- ABB DSTC 452 5751017-A Modem Unit
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- ABB Advant Master Communication Module Series
