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 TWDLMDA20DUK is a compact, extendable PLC base unit from the Schneider Electric Twido range. It is designed for small-scale automation tasks, featuring a 24V DC power supply, 12 digital inputs, and 8 solid-state (transistor) outputs. This modular controller provides the flexibility required for various industrial control applications where space is at a premium. Although the Twido range has been phased out, the TWDLMDA20DUK remains a widely recognized and reliable solution for maintaining and supporting legacy automated machinery.
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Range | Twido |
| Product Type | Extendable PLC Base |
| Supply Voltage | 24V DC |
| Inputs | 12 (Digital) |
| Outputs | 8 (Solid-state) |
| Dimensions | 7.60 x 10.20 x 5.10 cm |
| Weight | 0.10 kg |
| Commodity Code | 85371099 |
| Export Control (ECCN) | N |
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Returns & Warranty

The TWDLMDA20DUK is a compact, extendable PLC base unit from the Schneider Electric Twido range. It is designed for small-scale automation tasks, featuring a 24V DC power supply, 12 digital inputs, and 8 solid-state (transistor) outputs. This modular controller provides the flexibility required for various industrial control applications where space is at a premium. Although the Twido range has been phased out, the TWDLMDA20DUK remains a widely recognized and reliable solution for maintaining and supporting legacy automated machinery.
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Range | Twido |
| Product Type | Extendable PLC Base |
| Supply Voltage | 24V DC |
| Inputs | 12 (Digital) |
| Outputs | 8 (Solid-state) |
| Dimensions | 7.60 x 10.20 x 5.10 cm |
| Weight | 0.10 kg |
| Commodity Code | 85371099 |
| Export Control (ECCN) | N |
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 |
Beige
|
| Country of origin |
France
|
| Power source |
DC Power
|