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.
Designed for compact, localized machine control, the Omron CPM1A-40CDT-D-V1 micro controller functions as a reliable, high-performance industrial programmable logic controller (PLC) within the SYSMAC CPM1A family. This CPU unit integrates high-density digital I/O with built-in advanced functions, making it a highly efficient solution for space-constrained control panels.
The unit features 24 inputs and 16 transistor outputs, enabling immediate management of multiple field devices without requiring external expansion. For more complex automation architectures, the CPU supports the connection of up to three expansion units. With dedicated high-speed processing capabilities, including an encoder input and a pulse output, it provides precise timing and position control for modern machinery.
| Manufacturer | Omron |
| Part Number / Model | CPM1A-40CDT-D-V1 |
| Series | SYSMAC CPM1A |
| Power Supply Voltage | 20.4 to 26.4 VDC |
| Total Built-In I/O | 40 points (24 Inputs, 16 Outputs) |
| Input Type | 24 VDC Inputs |
| Output Type | Transistor (Sink/NPN type) |
| Program Capacity | 2 kWords |
| Data Memory Capacity | 1 kWords |
| Logic Execution Speed | 0.72 us to 1.72 us |
| High-Speed Inputs | 1 Encoder Input (5 kHz) |
| Pulse Outputs | 1 Pulse Output (2 kHz) |
| Maximum Expansion | Up to 3 expansion units |
| Dimensions (H x W x D) | 90 mm x 150 mm x 50 mm |
| Shipping Weight | 1.5 kg |
Global Express Shipping
Returns & Warranty

Designed for compact, localized machine control, the Omron CPM1A-40CDT-D-V1 micro controller functions as a reliable, high-performance industrial programmable logic controller (PLC) within the SYSMAC CPM1A family. This CPU unit integrates high-density digital I/O with built-in advanced functions, making it a highly efficient solution for space-constrained control panels.
The unit features 24 inputs and 16 transistor outputs, enabling immediate management of multiple field devices without requiring external expansion. For more complex automation architectures, the CPU supports the connection of up to three expansion units. With dedicated high-speed processing capabilities, including an encoder input and a pulse output, it provides precise timing and position control for modern machinery.
| Manufacturer | Omron |
| Part Number / Model | CPM1A-40CDT-D-V1 |
| Series | SYSMAC CPM1A |
| Power Supply Voltage | 20.4 to 26.4 VDC |
| Total Built-In I/O | 40 points (24 Inputs, 16 Outputs) |
| Input Type | 24 VDC Inputs |
| Output Type | Transistor (Sink/NPN type) |
| Program Capacity | 2 kWords |
| Data Memory Capacity | 1 kWords |
| Logic Execution Speed | 0.72 us to 1.72 us |
| High-Speed Inputs | 1 Encoder Input (5 kHz) |
| Pulse Outputs | 1 Pulse Output (2 kHz) |
| Maximum Expansion | Up to 3 expansion units |
| Dimensions (H x W x D) | 90 mm x 150 mm x 50 mm |
| Shipping Weight | 1.5 kg |
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 .
| Country of origin |
Japan
|