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 Allen-Bradley 1756-OG16 is a ControlLogix digital output module designed to provide 16 distinct points of 5V DC TTL outputs. Operating on a Low True logic structure, this module allows seamless interfacing with TTL-compatible field devices and logic circuits within industrial automation environments. It integrates into the ControlLogix chassis, using Producer/Consumer technology to efficiently share output status and module health diagnostics with multiple controllers across the local network architecture.
| Specification | Value |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Module Type | TTL Digital Output Module |
| Number of Outputs | 16 (8 points per group) |
| Voltage Category | 5V DC TTL (Low True) |
| Operating Voltage Range | 4.5 to 5.5V DC |
| Backplane Current Draw (5.1V DC) | 250 mA |
| Backplane Current Draw (24V DC) | 0 mA |
| Total Backplane Power | 1.28 W |
| Continuous Current per Point | 24 mA sink, 0.4 mA source |
| Power Dissipation, Max | 1.0 W @ 60 degC |
| Isolation Voltage | 50V continuous, basic insulation type (outputs-to-backplane) |
| Removable Terminal Block (RTB) | 1756-TBNH, 1756-TBSH |
| RTB Screw Torque | 0.4 to 0.7 N-m |
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Returns & Warranty



The Allen-Bradley 1756-OG16 is a ControlLogix digital output module designed to provide 16 distinct points of 5V DC TTL outputs. Operating on a Low True logic structure, this module allows seamless interfacing with TTL-compatible field devices and logic circuits within industrial automation environments. It integrates into the ControlLogix chassis, using Producer/Consumer technology to efficiently share output status and module health diagnostics with multiple controllers across the local network architecture.
| Specification | Value |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Module Type | TTL Digital Output Module |
| Number of Outputs | 16 (8 points per group) |
| Voltage Category | 5V DC TTL (Low True) |
| Operating Voltage Range | 4.5 to 5.5V DC |
| Backplane Current Draw (5.1V DC) | 250 mA |
| Backplane Current Draw (24V DC) | 0 mA |
| Total Backplane Power | 1.28 W |
| Continuous Current per Point | 24 mA sink, 0.4 mA source |
| Power Dissipation, Max | 1.0 W @ 60 degC |
| Isolation Voltage | 50V continuous, basic insulation type (outputs-to-backplane) |
| Removable Terminal Block (RTB) | 1756-TBNH, 1756-TBSH |
| RTB Screw Torque | 0.4 to 0.7 N-m |
Global Express Shipping
Returns & Warranty
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| Color pattern |
Black
|
| Country of origin |
United States
|
| Power source |
DC Power
|