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.
For demanding applications requiring high hygiene standards and environmental resistance, the Beckhoff EQ2008-0002 EtherCAT Box offers direct processing of eight digital outputs in a robust, stainless steel enclosure. This distributed I/O device is designed for decentralized installation directly on machinery, bypassing the need for protective control cabinets. Operating on the high-performance EtherCAT protocol, it controls digital actuators such as solenoid valves, contactors, and small lamps. With an IP69K protection rating, it is engineered to withstand high-pressure washdown environments, making it suitable for food, beverage, pharmaceutical, and chemical processing facilities.
| Parameter | Value |
|---|---|
| Manufacturer | Beckhoff |
| Model Number | EQ2008-0002 |
| Protocol | EtherCAT |
| Number of Outputs | 8 |
| Rated Load Voltage | 24 V DC (-15% / +20%) |
| Max. Output Current | 0.5 A per channel (Sum total: 4.0 A max) |
| Load Types | Ohmic, inductive, lamp load |
| Switching Times | Typical TON: 50 microseconds, TOFF: 100 microseconds |
| Electrical Isolation | 500 V |
| Current Consumption (from US) | Typical 130 mA |
| Auxiliary Power Current | Typical 20 mA + load |
| Housing Material | Stainless steel |
| Protection Rating | IP69K (conforms to EN 60529) |
| Operating Temperature | -25 degC to +60 degC |
| Storage Temperature | -40 degC to +85 degC |
| Dimensions (W x H x D) | 39 mm x 160 mm x 43 mm |
| Vibration/Shock Resistance | Conforms to EN 60068-2-6 / EN 60068-2-27 |
| Shipping Weight (Calculated) | 2.0 kg |
| Interface Connection | Connector Type | Assignment & Function |
|---|---|---|
| EtherCAT Bus Input/Output | 2 x M8 socket, shielded, screw-type | High-speed industrial Ethernet communication path |
| Digital Outputs | 8 x M12 sockets, 5-pin, A-coded | Channel-specific actuator connection, 24 V DC |
| Power Feed | 1 x M8 male socket, 4-pin | Main control voltage supply input |
| Downstream Power | 1 x M8 female socket, 4-pin | Power distribution link to downstream modules |
The EQ2008-0002 serves as a direct stainless steel upgrade to the standard plastic-housing EP2008-0002. While both modules operate on identical TwinCAT configuration frameworks and share matching communication diagnostics, the EQ series utilizes unique physical mount spacing and stainless-steel ground contacts. Ensure that the TwinCAT System Manager hardware tree is configured specifically for the EQ-designated variant to guarantee accurate process image diagnostic flags.
Because the stainless steel enclosure is fully sealed to achieve an IP69K rating, thermal dissipation occurs solely through conduction and passive convection across the metal frame. When installing inside tight, enclosed areas with an ambient temperature approaching 60 degC, ensure that the total cumulative load current does not continuously sit at the absolute thermal limit of 4.0 A. Operating under high continuous loads in high ambient temperatures may trigger temporary thermal self-protection on specific output channels.
To maintain the IP69K structural integrity over years of operational washdowns, always use IP69K-rated cordsets that feature stainless steel hexagonal nuts. Tighten the M12 and M8 connections using a calibrated torque wrench set to the exact OEM specification. Under-tightening compromises the moisture seal, while over-tightening can deform the internal O-ring, leading to micro-fissure water ingress during temperature cycling.
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Returns & Warranty

For demanding applications requiring high hygiene standards and environmental resistance, the Beckhoff EQ2008-0002 EtherCAT Box offers direct processing of eight digital outputs in a robust, stainless steel enclosure. This distributed I/O device is designed for decentralized installation directly on machinery, bypassing the need for protective control cabinets. Operating on the high-performance EtherCAT protocol, it controls digital actuators such as solenoid valves, contactors, and small lamps. With an IP69K protection rating, it is engineered to withstand high-pressure washdown environments, making it suitable for food, beverage, pharmaceutical, and chemical processing facilities.
| Parameter | Value |
|---|---|
| Manufacturer | Beckhoff |
| Model Number | EQ2008-0002 |
| Protocol | EtherCAT |
| Number of Outputs | 8 |
| Rated Load Voltage | 24 V DC (-15% / +20%) |
| Max. Output Current | 0.5 A per channel (Sum total: 4.0 A max) |
| Load Types | Ohmic, inductive, lamp load |
| Switching Times | Typical TON: 50 microseconds, TOFF: 100 microseconds |
| Electrical Isolation | 500 V |
| Current Consumption (from US) | Typical 130 mA |
| Auxiliary Power Current | Typical 20 mA + load |
| Housing Material | Stainless steel |
| Protection Rating | IP69K (conforms to EN 60529) |
| Operating Temperature | -25 degC to +60 degC |
| Storage Temperature | -40 degC to +85 degC |
| Dimensions (W x H x D) | 39 mm x 160 mm x 43 mm |
| Vibration/Shock Resistance | Conforms to EN 60068-2-6 / EN 60068-2-27 |
| Shipping Weight (Calculated) | 2.0 kg |
| Interface Connection | Connector Type | Assignment & Function |
|---|---|---|
| EtherCAT Bus Input/Output | 2 x M8 socket, shielded, screw-type | High-speed industrial Ethernet communication path |
| Digital Outputs | 8 x M12 sockets, 5-pin, A-coded | Channel-specific actuator connection, 24 V DC |
| Power Feed | 1 x M8 male socket, 4-pin | Main control voltage supply input |
| Downstream Power | 1 x M8 female socket, 4-pin | Power distribution link to downstream modules |
The EQ2008-0002 serves as a direct stainless steel upgrade to the standard plastic-housing EP2008-0002. While both modules operate on identical TwinCAT configuration frameworks and share matching communication diagnostics, the EQ series utilizes unique physical mount spacing and stainless-steel ground contacts. Ensure that the TwinCAT System Manager hardware tree is configured specifically for the EQ-designated variant to guarantee accurate process image diagnostic flags.
Because the stainless steel enclosure is fully sealed to achieve an IP69K rating, thermal dissipation occurs solely through conduction and passive convection across the metal frame. When installing inside tight, enclosed areas with an ambient temperature approaching 60 degC, ensure that the total cumulative load current does not continuously sit at the absolute thermal limit of 4.0 A. Operating under high continuous loads in high ambient temperatures may trigger temporary thermal self-protection on specific output channels.
To maintain the IP69K structural integrity over years of operational washdowns, always use IP69K-rated cordsets that feature stainless steel hexagonal nuts. Tighten the M12 and M8 connections using a calibrated torque wrench set to the exact OEM specification. Under-tightening compromises the moisture seal, while over-tightening can deform the internal O-ring, leading to micro-fissure water ingress during temperature cycling.
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
|