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 140DDM69000 is a Digital Module belonging to the Modicon Quantum series, engineered to provide robust I/O handling for industrial automation systems. This 140DDM69000 unit features a mixed configuration, providing 4 inputs at 125 V DC and 4 outputs operating within a range of 24 to 125 V DC.
The 140DDM69000 acts as a reliable interface between the controller and field devices, facilitating signal processing in demanding electrical environments. As a Modicon Quantum component, it is designed for integration into modular rack-based PLC systems. This module is currently classified as a phase-out item, having been transitioned by the manufacturer in 2018. It remains a critical spare part for maintenance and support of existing legacy control infrastructures requiring 125 V DC signal management.
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Range | Modicon Quantum |
| Product Type | Digital Module |
| Input Capacity | 4 inputs (125 V DC) |
| Output Capacity | 4 outputs (24-125 V DC) |
| Dimensions | 16.5 x 31.0 x 5.0 cm |
| Weight | 0.66 kg |
| Product Phase | Phase-Out |
| Commodity Code | 85389091 |
Global Express Shipping
Returns & Warranty

The 140DDM69000 is a Digital Module belonging to the Modicon Quantum series, engineered to provide robust I/O handling for industrial automation systems. This 140DDM69000 unit features a mixed configuration, providing 4 inputs at 125 V DC and 4 outputs operating within a range of 24 to 125 V DC.
The 140DDM69000 acts as a reliable interface between the controller and field devices, facilitating signal processing in demanding electrical environments. As a Modicon Quantum component, it is designed for integration into modular rack-based PLC systems. This module is currently classified as a phase-out item, having been transitioned by the manufacturer in 2018. It remains a critical spare part for maintenance and support of existing legacy control infrastructures requiring 125 V DC signal management.
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Range | Modicon Quantum |
| Product Type | Digital Module |
| Input Capacity | 4 inputs (125 V DC) |
| Output Capacity | 4 outputs (24-125 V DC) |
| Dimensions | 16.5 x 31.0 x 5.0 cm |
| Weight | 0.66 kg |
| Product Phase | Phase-Out |
| Commodity Code | 85389091 |
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 |
Greyish White
|
| Country of origin |
France
|
| Power source |
DC Power
|