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 BECKHOFF EPP4374-0002 is a high-performance, decentralized EtherCAT P Box designed for directly acquiring and processing analog signals in harsh industrial environments. Serving as a combined input and output module, this unit features two analog inputs and two analog outputs, each of which can be individually parameterized for current or voltage signals. This adaptability makes it highly versatile for connecting diverse sensors and actuators directly in the field without requiring local junction boxes.
By utilizing EtherCAT P technology, the BECKHOFF EPP4374-0002 combines ultra-fast EtherCAT communication with two independent 24 V DC power supplies (Us for system and sensor electronics, and Up for peripheral actuator power) into a single M8 connector system. This integration significantly simplifies field wiring, minimizes system footprints, and reduces overall cable management costs.
Enclosed in a robust, compact housing with an IP67 protection rating, the module resists moisture, dust, and mechanical stress. It is ideal for direct machine mounting, eliminating the need for protective control cabinets and ensuring clean, high-resolution signal processing directly at the point of application.
| Parameter | Specification |
| Manufacturer | BECKHOFF |
| Model | EPP4374-0002 |
| Product Type | EtherCAT P Box (Combination Module) |
| Number of Channels | 2 analog inputs + 2 analog outputs |
| Signal Type | -10/0…+10 V | 0/4…20 mA, parameterizable per channel |
| Resolution | 16 bit |
| Parameter | Specification |
| Nominal Voltage | 24 V DC (-15% / +20%) |
| Current Consumption from Us | Typically 100 mA |
| Actuator Supply | From auxiliary voltage Up |
| Electrical Isolation | 500 V |
| Load (Outputs) | Voltage: > 5 kOhm | Current: < 500 Ohm |
| Parameter | Specification |
| Conversion Time (Input) | Approximately 100 microseconds |
| Conversion Time (Output) | Approximately 40 microseconds |
| Measurement Error (Input) | < 0.3% (relative to full scale value) |
| Measurement Error (Output) | < 0.1% (relative to full scale value) |
| Parameter | Specification |
| Housing Dimensions (W x H x D) | 30 mm x 126 mm x 26.5 mm |
| Weight | Approximately 165 g |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Protection Rating | IP65, IP66, IP67 (conforms to EN 60529) |
| Vibration Resistance | Conforms to EN 60068-2-6 |
| Shock Resistance | Conforms to EN 60068-2-27 |
| EMC Immunity/Emission | Conforms to EN 61000-6-2 / EN 61000-6-4 |
| Approvals/Markings | CE, UL |
| Interface | Function |
| EtherCAT P (Input/Output) | 2 x M8 socket, shielded, screw type, P-coded |
| Analog Inputs/Outputs | 4 x M12 x 1, 5-pin, A-coded |
Global Express Shipping
Returns & Warranty

The BECKHOFF EPP4374-0002 is a high-performance, decentralized EtherCAT P Box designed for directly acquiring and processing analog signals in harsh industrial environments. Serving as a combined input and output module, this unit features two analog inputs and two analog outputs, each of which can be individually parameterized for current or voltage signals. This adaptability makes it highly versatile for connecting diverse sensors and actuators directly in the field without requiring local junction boxes.
By utilizing EtherCAT P technology, the BECKHOFF EPP4374-0002 combines ultra-fast EtherCAT communication with two independent 24 V DC power supplies (Us for system and sensor electronics, and Up for peripheral actuator power) into a single M8 connector system. This integration significantly simplifies field wiring, minimizes system footprints, and reduces overall cable management costs.
Enclosed in a robust, compact housing with an IP67 protection rating, the module resists moisture, dust, and mechanical stress. It is ideal for direct machine mounting, eliminating the need for protective control cabinets and ensuring clean, high-resolution signal processing directly at the point of application.
| Parameter | Specification |
| Manufacturer | BECKHOFF |
| Model | EPP4374-0002 |
| Product Type | EtherCAT P Box (Combination Module) |
| Number of Channels | 2 analog inputs + 2 analog outputs |
| Signal Type | -10/0…+10 V | 0/4…20 mA, parameterizable per channel |
| Resolution | 16 bit |
| Parameter | Specification |
| Nominal Voltage | 24 V DC (-15% / +20%) |
| Current Consumption from Us | Typically 100 mA |
| Actuator Supply | From auxiliary voltage Up |
| Electrical Isolation | 500 V |
| Load (Outputs) | Voltage: > 5 kOhm | Current: < 500 Ohm |
| Parameter | Specification |
| Conversion Time (Input) | Approximately 100 microseconds |
| Conversion Time (Output) | Approximately 40 microseconds |
| Measurement Error (Input) | < 0.3% (relative to full scale value) |
| Measurement Error (Output) | < 0.1% (relative to full scale value) |
| Parameter | Specification |
| Housing Dimensions (W x H x D) | 30 mm x 126 mm x 26.5 mm |
| Weight | Approximately 165 g |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Protection Rating | IP65, IP66, IP67 (conforms to EN 60529) |
| Vibration Resistance | Conforms to EN 60068-2-6 |
| Shock Resistance | Conforms to EN 60068-2-27 |
| EMC Immunity/Emission | Conforms to EN 61000-6-2 / EN 61000-6-4 |
| Approvals/Markings | CE, UL |
| Interface | Function |
| EtherCAT P (Input/Output) | 2 x M8 socket, shielded, screw type, P-coded |
| Analog Inputs/Outputs | 4 x M12 x 1, 5-pin, A-coded |
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
|