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.
To analyze three-phase AC power networks directly within the industrial fieldbus segment, the Beckhoff EL3403 provides precise, high-performance measurement values. This 3-channel analog input power measurement terminal is designed to calculate comprehensive electrical grid status parameters, including effective power, reactive power, apparent power, energy consumption, phase angle (cos phi), and frequency for each connected phase. Processing inputs up to 500 V AC directly, the module supports highly detailed diagnostics of energy distribution systems and industrial machinery. Non-intrusive current sensing up to 1 A (AC) is executed through external measuring transformers (such as x A/1 A), enabling flexible integration into existing power distribution frameworks.
| Manufacturer | BECKHOFF |
| Part Number / Model | EL3403 |
| Technology | 3-phase power measurement for alternating voltages |
| Number of Inputs | 3 x current, 3 x voltage |
| Measuring Voltage | Max. 500 V AC 3~ (ULX-N: max. 288 V AC) |
| Measuring Current | Max. 1 A AC (via measuring transformers x A/1 A) |
| Resolution | 1 uA, 0.1 mV, 10 mW (16-bit) |
| Measuring Error | 0.5% relative to full scale value (U/I), 1% calculated values |
| Measuring Procedure | True RMS calculation |
| Conversion Time | Mains-synchronous |
| Electrical Isolation | 1500 V |
| Current Consumption E-bus | Typ. 120 mA |
| Process Image Bit Width | 62 byte PM input, 3 byte PM output |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Enclosure Protection Rating | IP20 |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
| Weight | Approx. 75 g |
| Connection Property | Specification |
|---|---|
| Wiring Method | Solid conductor (e), flexible conductor (f), and ferrule (a) |
| Actuation Method | Spring actuation by screwdriver |
| Connection Cross-Section (Solid/Stranded) | 0.08 to 2.5 mm² (AWG 28 to 14) |
| Connection Cross-Section (With Ferrule) | 0.14 to 1.5 mm² (AWG 26 to 16) |
| Stripping Length | 8 to 9 mm |
| Current Load Power Contacts | Max. 10 A |
Global Express Shipping
Returns & Warranty

To analyze three-phase AC power networks directly within the industrial fieldbus segment, the Beckhoff EL3403 provides precise, high-performance measurement values. This 3-channel analog input power measurement terminal is designed to calculate comprehensive electrical grid status parameters, including effective power, reactive power, apparent power, energy consumption, phase angle (cos phi), and frequency for each connected phase. Processing inputs up to 500 V AC directly, the module supports highly detailed diagnostics of energy distribution systems and industrial machinery. Non-intrusive current sensing up to 1 A (AC) is executed through external measuring transformers (such as x A/1 A), enabling flexible integration into existing power distribution frameworks.
| Manufacturer | BECKHOFF |
| Part Number / Model | EL3403 |
| Technology | 3-phase power measurement for alternating voltages |
| Number of Inputs | 3 x current, 3 x voltage |
| Measuring Voltage | Max. 500 V AC 3~ (ULX-N: max. 288 V AC) |
| Measuring Current | Max. 1 A AC (via measuring transformers x A/1 A) |
| Resolution | 1 uA, 0.1 mV, 10 mW (16-bit) |
| Measuring Error | 0.5% relative to full scale value (U/I), 1% calculated values |
| Measuring Procedure | True RMS calculation |
| Conversion Time | Mains-synchronous |
| Electrical Isolation | 1500 V |
| Current Consumption E-bus | Typ. 120 mA |
| Process Image Bit Width | 62 byte PM input, 3 byte PM output |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Enclosure Protection Rating | IP20 |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
| Weight | Approx. 75 g |
| Connection Property | Specification |
|---|---|
| Wiring Method | Solid conductor (e), flexible conductor (f), and ferrule (a) |
| Actuation Method | Spring actuation by screwdriver |
| Connection Cross-Section (Solid/Stranded) | 0.08 to 2.5 mm² (AWG 28 to 14) |
| Connection Cross-Section (With Ferrule) | 0.14 to 1.5 mm² (AWG 26 to 16) |
| Stripping Length | 8 to 9 mm |
| Current Load Power Contacts | Max. 10 A |
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 |
Germany
|