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.
Processing eight digital inputs directly in the field, the Beckhoff IP1012-B510 provides high-speed signal acquisition for CANopen networks without requiring a protective control cabinet. This distributed I/O module features a robust, fully-sealed IP67 enclosure, making it ideal for decentralized automation topologies where space is limited and environment conditions are harsh. With a rapid 0.2 ms input filter and integrated sensor power supply, the module interfaces seamlessly with proximity sensors, limit switches, and photoelectric sensors to transmit precise state changes over the CANopen industrial protocol.
| Parameter | Value |
|---|---|
| Manufacturer | Beckhoff Automation |
| Model Number | IP1012-B510 |
| Fieldbus Protocol | CANopen (automatic detection from 10 kbaud to 1 Mbaud) |
| Number of Inputs | 8 digital inputs (type 2 according to EN 61131-2) |
| Input Connections | M12, screw type |
| Nominal Input Voltage | 24 V DC (-15% / +20%) |
| Input Filter Time | 0.2 ms |
| "0" Signal Voltage | -3 V to +5 V |
| "1" Signal Voltage | 11 V to 30 V |
| Input Current | Typically 6 mA |
| Sensor Supply | Max. 0.5 A total, short-circuit proof |
| Bus Interface | 1 x M12 plug, 5-pin |
| Electrical Isolation | Control voltage / fieldbus: 500 V |
| Current Consumption (Us) | 45 mA + sensor load (max. 0.5 A) |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Protection Class | IP65/66/67 (conforms to EN 60529) |
| Dimensions (W x H x D) | 30 mm x 175 mm x 26.5 mm |
| Housing Material | PA6 (Polyamide) |
| Shipping Weight (Calculated) | 2.0 Kg (including heavy industrial packaging) |
| Interface Type | Pin / Terminal Assignment | Function / Circuit Assignment |
|---|---|---|
| CANopen Bus (M12 Male, 5-pin) | Pin 1 | Shield / Functional Earth |
| Pin 2 | V+ (Bus supply voltage) | |
| Pin 3 | V- (Bus reference potential) | |
| Pin 4 | CAN_H (Data High) | |
| Pin 5 | CAN_L (Data Low) | |
| Power Supply Feed (M8 Male, 4-pin) | Pin 1 | +24 V DC control voltage (Us) |
| Pin 2 | +24 V DC auxiliary load voltage (Up) | |
| Pin 3 | GND (Us) | |
| Pin 4 | GND (Up) | |
| Digital Inputs (M12 Sockets 1-4) | Pin 1 | +24 V DC sensor supply (derived from Us) |
| Pin 2 | Digital Input Channel B (Even numbers: 2, 4, 6, 8) | |
| Pin 3 | GND (Us) | |
| Pin 4 | Digital Input Channel A (Odd numbers: 1, 3, 5, 7) | |
| Pin 5 | Functional Earth (FE) |
The IP1012-B510 utilizes standard CANopen architecture. If compatibility requirements demand an alternate physical footprint, the IP1002-B510 utilizes the same technical structure but implements 8 x M8 connections instead of the M12 format. For migration from older physical nodes, verify that your CANopen network master (such as Beckhoff FC5101 or EL6751) is configured to parse the 8-bit process image. If replacing a PROFIBUS node (IP1012-B310) with this model, the complete trunk-line cabling must be updated to conform to CAN physical layer standards.
A common point of field failure is the total sensor supply limit. The module provides a maximum of 0.5 A across all 8 channels. When using active proximity sensors, calculate the total current draw. If high-draw photoelectric sensors exceed 500 mA combined, the internal self-resetting fuse will trip, cutting sensor power. If thermal degradation occurs due to direct sunlight or ambient temperature nearing +55 degC, the internal resistance of the fuse increases, lowering this trip threshold. Use an auxiliary power distributor if high-load sensors are required.
Baud rate and Node ID settings are configured via rotary address switches located underneath the protective transparent screw-cap. Ensure these rotary switches are set before powering the network. Always replace and tighten the protective cap with its integrated rubber gasket to maintain the IP67 moisture and dust seal. When installing long bus segments, verify that a 120-Ohm CAN termination resistor is applied to the final physical node on the network to prevent signal reflections and packet drops.
Isolate all control and auxiliary power networks before performing any physical installation or maintenance. Hot-plugging industrial sensors or bus lines under load can cause voltage spikes, damaging the internal optical isolation circuitry of the CANopen communications block.
Mount the Fieldbus Box to a flat, vibration-free surface using the two 3.5 mm integrated mounting holes. Secure with M3 bolts to a maximum tightening torque of 0.8 Nm.
Verify that the CANopen network speed matches your PLC configuration before adjusting the node address rotary switches. Securely tighten the protective faceplate cap afterward.
Connect the incoming 24 V DC power using the 4-pin M8 male connector. If daisy-chaining multiple modules, utilize the downstream female M8 connector, ensuring the aggregate current does not exceed the limit of the primary supply line.
Attach M12 sensor cables. Seal any unused M12 and M8 ports with protective plastic screw-plugs to retain the system's IP67 ingress rating.
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Processing eight digital inputs directly in the field, the Beckhoff IP1012-B510 provides high-speed signal acquisition for CANopen networks without requiring a protective control cabinet. This distributed I/O module features a robust, fully-sealed IP67 enclosure, making it ideal for decentralized automation topologies where space is limited and environment conditions are harsh. With a rapid 0.2 ms input filter and integrated sensor power supply, the module interfaces seamlessly with proximity sensors, limit switches, and photoelectric sensors to transmit precise state changes over the CANopen industrial protocol.
| Parameter | Value |
|---|---|
| Manufacturer | Beckhoff Automation |
| Model Number | IP1012-B510 |
| Fieldbus Protocol | CANopen (automatic detection from 10 kbaud to 1 Mbaud) |
| Number of Inputs | 8 digital inputs (type 2 according to EN 61131-2) |
| Input Connections | M12, screw type |
| Nominal Input Voltage | 24 V DC (-15% / +20%) |
| Input Filter Time | 0.2 ms |
| "0" Signal Voltage | -3 V to +5 V |
| "1" Signal Voltage | 11 V to 30 V |
| Input Current | Typically 6 mA |
| Sensor Supply | Max. 0.5 A total, short-circuit proof |
| Bus Interface | 1 x M12 plug, 5-pin |
| Electrical Isolation | Control voltage / fieldbus: 500 V |
| Current Consumption (Us) | 45 mA + sensor load (max. 0.5 A) |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Protection Class | IP65/66/67 (conforms to EN 60529) |
| Dimensions (W x H x D) | 30 mm x 175 mm x 26.5 mm |
| Housing Material | PA6 (Polyamide) |
| Shipping Weight (Calculated) | 2.0 Kg (including heavy industrial packaging) |
| Interface Type | Pin / Terminal Assignment | Function / Circuit Assignment |
|---|---|---|
| CANopen Bus (M12 Male, 5-pin) | Pin 1 | Shield / Functional Earth |
| Pin 2 | V+ (Bus supply voltage) | |
| Pin 3 | V- (Bus reference potential) | |
| Pin 4 | CAN_H (Data High) | |
| Pin 5 | CAN_L (Data Low) | |
| Power Supply Feed (M8 Male, 4-pin) | Pin 1 | +24 V DC control voltage (Us) |
| Pin 2 | +24 V DC auxiliary load voltage (Up) | |
| Pin 3 | GND (Us) | |
| Pin 4 | GND (Up) | |
| Digital Inputs (M12 Sockets 1-4) | Pin 1 | +24 V DC sensor supply (derived from Us) |
| Pin 2 | Digital Input Channel B (Even numbers: 2, 4, 6, 8) | |
| Pin 3 | GND (Us) | |
| Pin 4 | Digital Input Channel A (Odd numbers: 1, 3, 5, 7) | |
| Pin 5 | Functional Earth (FE) |
The IP1012-B510 utilizes standard CANopen architecture. If compatibility requirements demand an alternate physical footprint, the IP1002-B510 utilizes the same technical structure but implements 8 x M8 connections instead of the M12 format. For migration from older physical nodes, verify that your CANopen network master (such as Beckhoff FC5101 or EL6751) is configured to parse the 8-bit process image. If replacing a PROFIBUS node (IP1012-B310) with this model, the complete trunk-line cabling must be updated to conform to CAN physical layer standards.
A common point of field failure is the total sensor supply limit. The module provides a maximum of 0.5 A across all 8 channels. When using active proximity sensors, calculate the total current draw. If high-draw photoelectric sensors exceed 500 mA combined, the internal self-resetting fuse will trip, cutting sensor power. If thermal degradation occurs due to direct sunlight or ambient temperature nearing +55 degC, the internal resistance of the fuse increases, lowering this trip threshold. Use an auxiliary power distributor if high-load sensors are required.
Baud rate and Node ID settings are configured via rotary address switches located underneath the protective transparent screw-cap. Ensure these rotary switches are set before powering the network. Always replace and tighten the protective cap with its integrated rubber gasket to maintain the IP67 moisture and dust seal. When installing long bus segments, verify that a 120-Ohm CAN termination resistor is applied to the final physical node on the network to prevent signal reflections and packet drops.
Isolate all control and auxiliary power networks before performing any physical installation or maintenance. Hot-plugging industrial sensors or bus lines under load can cause voltage spikes, damaging the internal optical isolation circuitry of the CANopen communications block.
Mount the Fieldbus Box to a flat, vibration-free surface using the two 3.5 mm integrated mounting holes. Secure with M3 bolts to a maximum tightening torque of 0.8 Nm.
Verify that the CANopen network speed matches your PLC configuration before adjusting the node address rotary switches. Securely tighten the protective faceplate cap afterward.
Connect the incoming 24 V DC power using the 4-pin M8 male connector. If daisy-chaining multiple modules, utilize the downstream female M8 connector, ensuring the aggregate current does not exceed the limit of the primary supply line.
Attach M12 sensor cables. Seal any unused M12 and M8 ports with protective plastic screw-plugs to retain the system's IP67 ingress rating.
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| Country of origin |
Germany
|