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.
Integrating compact control capabilities within industrial automation environments, the CPM1A-20CDR-D functions as a highly reliable micro programmable controller engineered for small-scale applications. This CPU unit features a space-saving design containing integrated I/O points, making it highly suitable for packaging machinery, conveyor control, and localized machine automation. Equipped with dedicated DC inputs and robust relay outputs, the controller executes precise logic sequences while requiring minimal control panel footprint.
| Manufacturer | Omron |
| Part Number/Model | CPM1A-20CDR-D |
| Series | CPM1A |
| Product Type | Micro Programmable Controller (CPU Unit) |
| Total Built-in I/O Points | 20 |
| Input Points | 12 DC inputs (24 VDC) |
| Output Points | 8 points |
| Output Type | Relay outputs |
| Power Supply Voltage | 24 VDC |
| Mounting Method | DIN Rail or panel mounting |
| Operating Temperature | 0 to 55 degC |
Ensure the controller is mounted in a vertical orientation on a standard 35mm DIN rail within a clean, dry enclosure. Maintain adequate clearance above and below the unit to permit natural convection cooling. All wiring for the 24 VDC power supply must conform to local electrical safety standards. Use shielded cables for high-speed counter inputs to prevent electromagnetic interference from distorting input signals.
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Returns & Warranty

Integrating compact control capabilities within industrial automation environments, the CPM1A-20CDR-D functions as a highly reliable micro programmable controller engineered for small-scale applications. This CPU unit features a space-saving design containing integrated I/O points, making it highly suitable for packaging machinery, conveyor control, and localized machine automation. Equipped with dedicated DC inputs and robust relay outputs, the controller executes precise logic sequences while requiring minimal control panel footprint.
| Manufacturer | Omron |
| Part Number/Model | CPM1A-20CDR-D |
| Series | CPM1A |
| Product Type | Micro Programmable Controller (CPU Unit) |
| Total Built-in I/O Points | 20 |
| Input Points | 12 DC inputs (24 VDC) |
| Output Points | 8 points |
| Output Type | Relay outputs |
| Power Supply Voltage | 24 VDC |
| Mounting Method | DIN Rail or panel mounting |
| Operating Temperature | 0 to 55 degC |
Ensure the controller is mounted in a vertical orientation on a standard 35mm DIN rail within a clean, dry enclosure. Maintain adequate clearance above and below the unit to permit natural convection cooling. All wiring for the 24 VDC power supply must conform to local electrical safety standards. Use shielded cables for high-speed counter inputs to prevent electromagnetic interference from distorting input signals.
Global Express Shipping
Returns & Warranty
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| Color pattern |
Black
|
| Country of origin |
Japan
|
| Power source |
DC Power
|