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 high-performance positioning and multi-axis synchronization within the MELSEC-Q platform, the QD77MS16 Simple Motion Module delivers advanced motion control capabilities over the high-speed optical SSCNET III/H network. This module streamlines complex motion applications by integrating positioning control, synchronous control, and electronic cam functionality into a single slot design. By leveraging fiber-optic communication, the QD77MS16 ensures noise-immune, high-speed data transmission between the controller and servo amplifiers, making it highly reliable for demanding industrial automation setups.
The module supports synchronous operations such as electronic gears, clutches, and cams without requiring complex programming, relying instead on parameter-based configurations in GX Works2. It manages 2-, 3-, or 4-axis linear interpolation and 2-axis circular interpolation, enabling smooth trajectory execution for complex mechanical systems. It functions as an ideal interface for high-precision machinery requiring multi-axis coordination and centralized diagnostic monitoring.
| Parameter | Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Part Number/Model | QD77MS16 |
| Series | MELSEC-Q Series |
| Module Type | Simple Motion Module |
| Number of Control Axes | 16 axes |
| Servo Network Connection | SSCNET III/H (Optical communication) |
| Communication Cycle | 0.88 ms or 1.77 ms (depending on configured axis limit) |
| Interpolation Capabilities | 2-, 3-, or 4-axis linear interpolation, 2-axis circular interpolation |
| Control Method | PTP (Point-to-Point) control, CP (Continuous Path) control, Speed-Position switching, Position-Speed switching |
| Control Units | mm, inch, degree, pulse (PLS) |
| Positioning Data Capacity | 600 points per axis |
| Internal Current Consumption | 0.75 A (at 5V DC) |
| Backplane Slot Width | Single slot on MELSEC-Q base unit |
| Interface Port | Function Description |
|---|---|
| SSCNET III/H (CN1) | Optical connector for connection to downstream servo amplifiers (MR-J4/MR-J3 series). |
| External Input Connector | For manual pulse generator, external inputs (FLS, RLS, DOG, STOP, EMI), and high-speed touch probes. |
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Returns & Warranty

Designed for high-performance positioning and multi-axis synchronization within the MELSEC-Q platform, the QD77MS16 Simple Motion Module delivers advanced motion control capabilities over the high-speed optical SSCNET III/H network. This module streamlines complex motion applications by integrating positioning control, synchronous control, and electronic cam functionality into a single slot design. By leveraging fiber-optic communication, the QD77MS16 ensures noise-immune, high-speed data transmission between the controller and servo amplifiers, making it highly reliable for demanding industrial automation setups.
The module supports synchronous operations such as electronic gears, clutches, and cams without requiring complex programming, relying instead on parameter-based configurations in GX Works2. It manages 2-, 3-, or 4-axis linear interpolation and 2-axis circular interpolation, enabling smooth trajectory execution for complex mechanical systems. It functions as an ideal interface for high-precision machinery requiring multi-axis coordination and centralized diagnostic monitoring.
| Parameter | Specification |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Part Number/Model | QD77MS16 |
| Series | MELSEC-Q Series |
| Module Type | Simple Motion Module |
| Number of Control Axes | 16 axes |
| Servo Network Connection | SSCNET III/H (Optical communication) |
| Communication Cycle | 0.88 ms or 1.77 ms (depending on configured axis limit) |
| Interpolation Capabilities | 2-, 3-, or 4-axis linear interpolation, 2-axis circular interpolation |
| Control Method | PTP (Point-to-Point) control, CP (Continuous Path) control, Speed-Position switching, Position-Speed switching |
| Control Units | mm, inch, degree, pulse (PLS) |
| Positioning Data Capacity | 600 points per axis |
| Internal Current Consumption | 0.75 A (at 5V DC) |
| Backplane Slot Width | Single slot on MELSEC-Q base unit |
| Interface Port | Function Description |
|---|---|
| SSCNET III/H (CN1) | Optical connector for connection to downstream servo amplifiers (MR-J4/MR-J3 series). |
| External Input Connector | For manual pulse generator, external inputs (FLS, RLS, DOG, STOP, EMI), and high-speed touch probes. |
Global Express Shipping
Returns & Warranty
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| Country of origin |
United States
|