Implementing 3-Switch XOR Ladder Logic with Internal Bit
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
The ABB NDBU-95C (Product ID: 64008366) is a star connection branching unit designed for industrial drive communication networks utilizing the DDCS (Distributed Drives Communication System) protocol. It functions as a 9-channel branching component to enable reliable optical link communication and network expansion within multi-drive control architectures, such as the ACS800 and ACS880 series drive systems.
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Model | NDBU-95C |
| Product ID | 64008366 |
| ABB Type Designation | NDBU-95 |
| Product Type | Star connection branching unit (DDCS Branching Unit) |
| Optical Component Rate | 10 MBd (All channels CH0...CH8 and MSTR) |
| Communication Protocol | DDCS protocol |
| Input Power Supply | 24 V DC |
| Channels Available | 9 channels |
| Country of Origin | Finland (FI) / Sweden (SE) |
| Product Net Weight | 0.55 kg |
| Dimensions (W x H x D) | 145 mm x 170 mm x 35 mm |
Global Express Shipping
Returns & Warranty



The ABB NDBU-95C (Product ID: 64008366) is a star connection branching unit designed for industrial drive communication networks utilizing the DDCS (Distributed Drives Communication System) protocol. It functions as a 9-channel branching component to enable reliable optical link communication and network expansion within multi-drive control architectures, such as the ACS800 and ACS880 series drive systems.
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Model | NDBU-95C |
| Product ID | 64008366 |
| ABB Type Designation | NDBU-95 |
| Product Type | Star connection branching unit (DDCS Branching Unit) |
| Optical Component Rate | 10 MBd (All channels CH0...CH8 and MSTR) |
| Communication Protocol | DDCS protocol |
| Input Power Supply | 24 V DC |
| Channels Available | 9 channels |
| Country of Origin | Finland (FI) / Sweden (SE) |
| Product Net Weight | 0.55 kg |
| Dimensions (W x H x D) | 145 mm x 170 mm x 35 mm |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
White
|
| Country of origin |
Sweden
Finland
|
| Power source |
DC Power
|