ABB NTDI21-B | DIN Rail PLC Termination Module with Diagnostics
Manufacturer: ABB
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Part Number: NTDI21-B
Condition：New with Original Package
Product Type: DIN Rail PLC Termination Module with Diagnostics
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB NTDI21-B PLC Termination Unit
Overview
The ABB NTDI21-B is a robust termination unit designed for industrial PLC systems, providing a secure interface between controllers and field devices.
It supports 16 digital inputs and 16 digital outputs, ensuring reliable signal transmission across harsh industrial environments.
Its compact DIN rail design simplifies installation and wiring, while built-in surge protection, isolation transformers, and diagnostics enhance system safety.
The unit supports Ethernet and RS485 communication, with programming compatibility for ladder logic and structured text.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | NTDI21-B |
| Product Type | Termination Unit for PLC |
| Digital Inputs | 16 channels |
| Digital Outputs | 16 channels |
| Input Voltage | 24 V DC |
| Operating Temperature | –40°C to +70°C |
| Communication Interfaces | Ethernet, RS485 |
| Memory Capacity | 256 KB |
| Protection Features | Surge protection, isolation transformer |
| Programming Support | Ladder logic, structured text |
| Diagnostic Functions | Built-in fault detection and reporting |
| Mounting Type | DIN rail |
| Weight | 630 g |
| Country of Origin | Sweden |
FAQs
Q1: How many input and output channels does the ABB NTDI21-B support?
✅ The NTDI21-B supports 16 digital inputs and 16 digital outputs, ideal for industrial PLC applications.
Q2: What voltage does this termination unit operate on?
✅ It operates at 24 V DC, ensuring compatibility with standard PLC systems.
Q3: Can the unit be mounted on DIN rails?
✅ Yes, the NTDI21-B is DIN rail mountable, allowing quick installation in control panels.
Q4: What protection features are included?
✅ It includes surge protection, isolation transformers, and diagnostic fault detection for safe operation.
Q5: Which communication interfaces are supported?
✅ The module supports Ethernet and RS485, enabling flexible integration into automation networks.