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.
Integrating decentralized sensor signals directly into RS485 fieldbus architectures, the Beckhoff IP1012-B800 features eight digital inputs in a robust, machine-mountable design. This compact Fieldbus Box connects binary control signals from sensors to the controller via an interference-free RS485 interface, bypassing the need for protective control cabinets. Designed for demanding field environments, it delivers highly responsive signal filtering alongside extensive physical protection.
| Parameter | Value / Specification |
|---|---|
| Manufacturer | Beckhoff Automation |
| Model Reference | IP1012-B800 |
| Number of Inputs | 8 digital inputs |
| Nominal Input Voltage | 24 V DC (-15% / +20%) |
| Input Filter Time | 0.2 ms |
| Signal Voltages (EN 61131-2 Type 2) | "0" Signal: -3 to +5 V | "1" Signal: 11 to 30 V |
| Nominal Input Current | Typical 6 mA |
| Sensor Supply Current | Max. 0.5 A total (short-circuit proof) |
| Fieldbus Protocol | Open RS485 protocol |
| Supported Baud Rates | 9.6 kbaud, 19.2 kbaud, 38.4 kbaud (default) |
| Bus Connection | 1 x M12 socket, 5-pin, B-coded |
| Power Supply Port | Feed: M8 male (4-pin); Downstream: M8 female (4-pin) |
| Current Consumption (excluding sensors) | 45 mA from control voltage (US) |
| Isolation Voltage | Control voltage to fieldbus: yes |
| Operating Temperature Range | 0 to 55 degC (32 to 131 degF) |
| Storage Temperature Range | -25 to +85 degC (-13 to 185 degF) |
| 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 | Polyamide PA6 |
| Weight | 210 g |
| Shipping Weight (Calculated) | 0.45 kg |
| Package Dimensions (Calculated) | 220 mm x 60 mm x 50 mm |
| Country of Origin | Germany |
Alternative Models & Compatibility: The B800 series utilizes standard RS485 communication protocols which allow interfacing with legacy networks or non-Beckhoff controllers. When transitioning to EtherCAT topologies, the IP1012-B800 can be complemented or replaced by EtherCAT-native boxes such as EP1008-0001, though careful network master reconfiguration is required.
Application Pitfalls & Engineering Notes: The total aggregate current drawn by the eight connected sensors must not exceed 0.5 A. Exceeding this thermal threshold will trigger the short-circuit protection mechanism, temporarily shutting down sensor power. For applications in highly dynamic machinery, ensure that cable bend radiuses of connected M12 lines are maintained according to physical stress specs to preserve IP67 integrity over time.
Commissioning & Wiring Tips: Address configuration and serial parameter adjustments are handled via the KS2000 software interface. For long-distance RS485 segments approaching 1200 meters, a dedicated 120 Ohm termination resistor must be correctly placed on the last node of the physical line to mitigate signal reflections and line noise.
Disconnect all power supplies from the control network and fieldbus segments before commencing mechanical mounting or cable mating. Failure to completely de-energize circuits can result in permanent hardware damage, unexpected machine movement, or severe electrical shock.
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Integrating decentralized sensor signals directly into RS485 fieldbus architectures, the Beckhoff IP1012-B800 features eight digital inputs in a robust, machine-mountable design. This compact Fieldbus Box connects binary control signals from sensors to the controller via an interference-free RS485 interface, bypassing the need for protective control cabinets. Designed for demanding field environments, it delivers highly responsive signal filtering alongside extensive physical protection.
| Parameter | Value / Specification |
|---|---|
| Manufacturer | Beckhoff Automation |
| Model Reference | IP1012-B800 |
| Number of Inputs | 8 digital inputs |
| Nominal Input Voltage | 24 V DC (-15% / +20%) |
| Input Filter Time | 0.2 ms |
| Signal Voltages (EN 61131-2 Type 2) | "0" Signal: -3 to +5 V | "1" Signal: 11 to 30 V |
| Nominal Input Current | Typical 6 mA |
| Sensor Supply Current | Max. 0.5 A total (short-circuit proof) |
| Fieldbus Protocol | Open RS485 protocol |
| Supported Baud Rates | 9.6 kbaud, 19.2 kbaud, 38.4 kbaud (default) |
| Bus Connection | 1 x M12 socket, 5-pin, B-coded |
| Power Supply Port | Feed: M8 male (4-pin); Downstream: M8 female (4-pin) |
| Current Consumption (excluding sensors) | 45 mA from control voltage (US) |
| Isolation Voltage | Control voltage to fieldbus: yes |
| Operating Temperature Range | 0 to 55 degC (32 to 131 degF) |
| Storage Temperature Range | -25 to +85 degC (-13 to 185 degF) |
| 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 | Polyamide PA6 |
| Weight | 210 g |
| Shipping Weight (Calculated) | 0.45 kg |
| Package Dimensions (Calculated) | 220 mm x 60 mm x 50 mm |
| Country of Origin | Germany |
Alternative Models & Compatibility: The B800 series utilizes standard RS485 communication protocols which allow interfacing with legacy networks or non-Beckhoff controllers. When transitioning to EtherCAT topologies, the IP1012-B800 can be complemented or replaced by EtherCAT-native boxes such as EP1008-0001, though careful network master reconfiguration is required.
Application Pitfalls & Engineering Notes: The total aggregate current drawn by the eight connected sensors must not exceed 0.5 A. Exceeding this thermal threshold will trigger the short-circuit protection mechanism, temporarily shutting down sensor power. For applications in highly dynamic machinery, ensure that cable bend radiuses of connected M12 lines are maintained according to physical stress specs to preserve IP67 integrity over time.
Commissioning & Wiring Tips: Address configuration and serial parameter adjustments are handled via the KS2000 software interface. For long-distance RS485 segments approaching 1200 meters, a dedicated 120 Ohm termination resistor must be correctly placed on the last node of the physical line to mitigate signal reflections and line noise.
Disconnect all power supplies from the control network and fieldbus segments before commencing mechanical mounting or cable mating. Failure to completely de-energize circuits can result in permanent hardware damage, unexpected machine movement, or severe electrical shock.
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Returns & Warranty
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| Country of origin |
Germany
|