What Is SCADA? Supervisory Control Without Replacing the PLC
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

Direct control of high-current actuators is managed seamlessly by the Beckhoff IP2040-B810, a ruggedized fieldbus extension module designed for distributed automation architectures. Operating via an RS232 interface, this industrial module provides 8 digital outputs rated at 24 V DC. It delivers up to 2 A per channel with a total system current limit of 12 A, making it highly suitable for driving solenoid valves, contactors, and small DC motors directly in decentralized environments without requiring an additional protective enclosure.
| Parameter | Specification |
|---|---|
| Manufacturer | Beckhoff Automation GmbH & Co. KG |
| Model Number | IP2040-B810 |
| Product Series | Fieldbus Box (Extension Modules) |
| Interface | RS232 (Serial Point-to-Point) |
| Number of Digital Outputs | 8 |
| Nominal Load Voltage | 24 V DC (-15% / +20%) |
| Output Current Per Channel | Max. 2.0 A (Short-circuit proof) |
| Total Sum Current Limit | Max. 12.0 A (across all channels) |
| Actuator Connection | M8 round circular connectors (Ø8 mm) |
| Power Supply Connections | Feed: 1 x M8 male, 4-pin; Downstream: 1 x M8 female, 4-pin |
| Operating Temperature | 0 to 55 degC |
| Storage Temperature | -25 to 85 degC |
| Ingress Protection Rating | IP67 (conforms to EN 60529) |
| Country of Origin | Germany |
| Shipping Weight (Calculated) | 2.0 kg |
| Package Dimensions (Calculated) | 165 x 60 x 50 mm |
| M8 Output Pin | Signal Assignment / Function |
|---|---|
| Pin 1 | +24 V DC Auxiliary Actuator Power supply (U_P) |
| Pin 2 | Not connected |
| Pin 3 | GND Actuator Power supply (U_P) |
| Pin 4 | Control Output Signal (Output 1 to 8 respectively) |
The IP2040-B810 model relies on an point-to-point RS232 serial physical layer. If a multi-drop topology is required to chain multiple fieldbus modules, the RS485-based IP2040-B800 is recommended. Ensure your host system configuration matches the Baud rate and serial parameters expected by the IP2040 series internal serial engine.
While each channel supports up to 2 A, the cumulative load current across all eight channels must remain below the 12 A system limit. Attempting to draw 2 A on all channels simultaneously will overload the system power bus, triggering thermal protection mechanisms and risking system power-down. For highly inductive loads like large solenoid valves, ensure local flyback diodes are present if the load cable runs exceed 5 meters, protecting the internal switching transistors from fast transient voltage peaks.
To configure the communication parameters of the IP2040-B810, utilize the Beckhoff KS2000 configuration software tool via a point-to-point serial interface cable. Always secure the metal shielding of the RS232 connection to a clean, noise-free functional ground. Avoid routing serial communication cables parallel to heavy motor power cables or variable frequency drive (VFD) output paths to prevent data packet corruption.
Isolate all electrical power sources before commencing physical mounting, cabling, or service on this device. Double check that the cumulative current consumption of the connected actuators does not exceed the maximum allowed current limit of 12 A to prevent severe device damage, fire hazards, or controller instability.
Securely mount the IP2040-B810 module directly to a flat machine frame or mounting plate using two M4 bolts with a maximum torque rating of 1.2 Nm.
Connect the dedicated functional earth (PE) screw on the module housing directly to the main system electrical ground terminal using low-impedance grounding strap.
Attach the RS232 serial cable to the standard communication port, ensuring that the connector is properly seated and hand-tightened to maintain the IP67 seal integrity.
Wire the M8 cables from the field actuators to the corresponding channel sockets. Turn the lock sleeves clockwise until firmly hand-tightened.
Connect the 24 V DC power supply lines to the power input connector, ensuring correct polarity. Power up the system and monitor the integrated LEDs to verify proper initialization.
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| Country of origin |
Germany
|