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 IP2320-B400 is a decentralized, IP67-rated Fieldbus Box designed for space-saving, machine-mounted application without a control cabinet. This combination I/O module integrates 4 digital inputs and 4 digital outputs within a single rugged enclosure, directly interfacing with Interbus industrial communication networks.
By bringing control signals directly to the machine frame, the BECKHOFF IP2320-B400 simplifies field wiring and reduces cabling complexity. Input signals are processed with a 3 ms filter time, while high-capacity digital outputs deliver up to 2 A per channel, making this module highly suitable for switching solenoids, valves, actuators, and other demanding load types in industrial automation environments.
| Manufacturer | BECKHOFF |
| Model | IP2320-B400 |
| Product Type | Fieldbus Box (I/O Combination Module) |
| Enclosure Protection Class | IP67 |
| Fieldbus Interface | Interbus |
| Number of Inputs | 4 |
| Nominal Voltage | 24 V DC |
| Input Filter Time | 3 ms |
| Number of Outputs | 4 |
| Nominal Voltage | 24 V DC |
| Max. Output Current | 2 A per channel |
| I/O Connection Technology | M8 (Ø8 mm circular connectors) |
| Interface | Function |
|---|---|
| Interbus Interface | Incoming and outgoing fieldbus communication lines |
| I/O Connectors (M8) | 4 x Digital Input, 4 x Digital Output connections |
| Power Supply Connection | Control voltage and load supply (24 V DC) |
When replacing an existing BECKHOFF IP2320-B400, carefully label each M8 connector corresponding to its physical I/O channel before removal. Ensure the replacement unit is secured tightly to maintain vibration resistance, and verify that cable seals are undamaged to prevent moisture penetration.
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Returns & Warranty

The BECKHOFF IP2320-B400 is a decentralized, IP67-rated Fieldbus Box designed for space-saving, machine-mounted application without a control cabinet. This combination I/O module integrates 4 digital inputs and 4 digital outputs within a single rugged enclosure, directly interfacing with Interbus industrial communication networks.
By bringing control signals directly to the machine frame, the BECKHOFF IP2320-B400 simplifies field wiring and reduces cabling complexity. Input signals are processed with a 3 ms filter time, while high-capacity digital outputs deliver up to 2 A per channel, making this module highly suitable for switching solenoids, valves, actuators, and other demanding load types in industrial automation environments.
| Manufacturer | BECKHOFF |
| Model | IP2320-B400 |
| Product Type | Fieldbus Box (I/O Combination Module) |
| Enclosure Protection Class | IP67 |
| Fieldbus Interface | Interbus |
| Number of Inputs | 4 |
| Nominal Voltage | 24 V DC |
| Input Filter Time | 3 ms |
| Number of Outputs | 4 |
| Nominal Voltage | 24 V DC |
| Max. Output Current | 2 A per channel |
| I/O Connection Technology | M8 (Ø8 mm circular connectors) |
| Interface | Function |
|---|---|
| Interbus Interface | Incoming and outgoing fieldbus communication lines |
| I/O Connectors (M8) | 4 x Digital Input, 4 x Digital Output connections |
| Power Supply Connection | Control voltage and load supply (24 V DC) |
When replacing an existing BECKHOFF IP2320-B400, carefully label each M8 connector corresponding to its physical I/O channel before removal. Ensure the replacement unit is secured tightly to maintain vibration resistance, and verify that cable seals are undamaged to prevent moisture penetration.
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
|