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 CX2550-0279 functions as a direct system-bus expansion module designed for CX20xx Embedded PCs, enabling remote USB 2.0 signal transmission up to 50 meters. This transmitter module mounts directly to the left-hand side of a CX20xx CPU block, converting standard internal USB lines into a serialized differential signal suitable for long-distance runs over standard Ethernet-style physical media. This setup is specifically optimized for connecting control panels such as the CP29xx-0000 series without signal degradation or latency spikes, ensuring seamless peripheral integration in complex industrial environments.
| Specification Parameter | Technical Value |
|---|---|
| Manufacturer | Beckhoff |
| Model Number | CX2550-0279 |
| Interface Type | 1 x USB Extended 2.0 (via RJ45 socket) |
| Maximum Cable Length | 50 meters (using Cat.5E cabling) |
| Power Feed | Via system bus (through CX2100-0xxx modules) |
| LED Diagnostics | Power (1x), Host (1x), Activity (1x), Link (1x) |
| Dimensions (W x H x D) | 24 mm x 99 mm x 54.5 mm |
| Weight | Approximately 190 g |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Protection Rating | IP20 |
| Vibration/Shock Resistance | Conforms to EN 60068-2-6 / EN 60068-2-27 |
| EMC Immunity/Emission | Conforms to EN 61000-6-2 / EN 61000-6-4 |
| Port Type | Connector Pinout / LED | Signal Description |
|---|---|---|
| RJ45 Output Port | Pins 1 to 8 | Differential USB transmission pairs over Cat.5E shielded line. Do not connect to Ethernet switches. |
| LED: PWR | On (Green) | Internal system power is successfully applied via the system bus. |
| LED: HOST | On (Green) | Established connection with the primary CX20xx CPU host interface. |
| LED: LINK | On (Green) | Active connection established with the remote CP29xx receiver. |
This module behaves specifically as a Point-to-Point Transmitter (Tx) and must be paired with an appropriate receiver, typically integrated directly into Beckhoff CP29xx-0000 Control Panels or external receiver boxes. It is physically designed to slide and snap into place on the left-side expansion slot of the CX20xx series. Ensure your CPU configuration in TwinCAT recognizes the additional module on the PC-system bus before commissioning.
A common error on-site is treating the physical RJ45 interface on the front of this unit as an Ethernet network port. Patching this connection into a standard LAN switch, router, or hub can cause immediate electrical damage to either the network hardware or the internal transceiver circuitry of the controller. Keep the extension path strictly point-to-point.
For transmissions reaching near the 50-meter limit, always use high-quality, double-shielded copper cabling (S/FTP Cat.5E or Cat.6). Avoid routing this physical-layer run in close proximity to high-frequency variable frequency drive (VFD) output cables or high-voltage lines, as noise coupling on the differential lines can cause momentary dropouts in panel mouse/keyboard and touch signals.
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The Beckhoff CX2550-0279 functions as a direct system-bus expansion module designed for CX20xx Embedded PCs, enabling remote USB 2.0 signal transmission up to 50 meters. This transmitter module mounts directly to the left-hand side of a CX20xx CPU block, converting standard internal USB lines into a serialized differential signal suitable for long-distance runs over standard Ethernet-style physical media. This setup is specifically optimized for connecting control panels such as the CP29xx-0000 series without signal degradation or latency spikes, ensuring seamless peripheral integration in complex industrial environments.
| Specification Parameter | Technical Value |
|---|---|
| Manufacturer | Beckhoff |
| Model Number | CX2550-0279 |
| Interface Type | 1 x USB Extended 2.0 (via RJ45 socket) |
| Maximum Cable Length | 50 meters (using Cat.5E cabling) |
| Power Feed | Via system bus (through CX2100-0xxx modules) |
| LED Diagnostics | Power (1x), Host (1x), Activity (1x), Link (1x) |
| Dimensions (W x H x D) | 24 mm x 99 mm x 54.5 mm |
| Weight | Approximately 190 g |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, non-condensing |
| Protection Rating | IP20 |
| Vibration/Shock Resistance | Conforms to EN 60068-2-6 / EN 60068-2-27 |
| EMC Immunity/Emission | Conforms to EN 61000-6-2 / EN 61000-6-4 |
| Port Type | Connector Pinout / LED | Signal Description |
|---|---|---|
| RJ45 Output Port | Pins 1 to 8 | Differential USB transmission pairs over Cat.5E shielded line. Do not connect to Ethernet switches. |
| LED: PWR | On (Green) | Internal system power is successfully applied via the system bus. |
| LED: HOST | On (Green) | Established connection with the primary CX20xx CPU host interface. |
| LED: LINK | On (Green) | Active connection established with the remote CP29xx receiver. |
This module behaves specifically as a Point-to-Point Transmitter (Tx) and must be paired with an appropriate receiver, typically integrated directly into Beckhoff CP29xx-0000 Control Panels or external receiver boxes. It is physically designed to slide and snap into place on the left-side expansion slot of the CX20xx series. Ensure your CPU configuration in TwinCAT recognizes the additional module on the PC-system bus before commissioning.
A common error on-site is treating the physical RJ45 interface on the front of this unit as an Ethernet network port. Patching this connection into a standard LAN switch, router, or hub can cause immediate electrical damage to either the network hardware or the internal transceiver circuitry of the controller. Keep the extension path strictly point-to-point.
For transmissions reaching near the 50-meter limit, always use high-quality, double-shielded copper cabling (S/FTP Cat.5E or Cat.6). Avoid routing this physical-layer run in close proximity to high-frequency variable frequency drive (VFD) output cables or high-voltage lines, as noise coupling on the differential lines can cause momentary dropouts in panel mouse/keyboard and touch signals.
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
|