Description
Designed for space-saving mounting arm installation, the Beckhoff CP7701-0021-0040 delivers robust control and visualization capabilities in demanding industrial environments. This heavy-duty Panel PC integrates a high-luminance 12-inch SVGA display with an optimized industrial PC architecture, housed within a fully sealed IP65 aluminum casing. Powered by an Intel Atom x5 multi-core processor and designed for fanless, low-power continuous operation, this hardware platform is engineered to run TwinCAT 3 automation software reliably on the plant floor.
Features
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Rugged Enclosure: Solid, IP65-rated aluminum housing protecting internal electronics from high humidity, dust, and water jets.
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Efficient Processing: Equipped with an Intel Atom x5 multi-core processor tailored for deterministic execution of HMI and control tasks.
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Flexible Connectivity: Dual independent Gigabit Ethernet interfaces and an integrated IP65-protected RS232 serial connection.
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Robust Mounting: Rear-panel mounting arm adapter featuring four M6 x 18 mm threaded holes for stable mechanical installation.
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Industrial Storage: High-reliability CFast storage media slot protecting operating system files and runtime parameters against vibration.
Applications
- Machine-level human-machine interface (HMI) in automotive assembly lines.
- Process control terminals in food processing and packaging plants requiring washdown protection.
- Distributed SCADA nodes in manufacturing execution systems (MES).
- Control room and field-level visualization in materials handling and logistics operations.
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
Beckhoff Automation |
| Model Reference |
CP7701-0021-0040 |
| Display Size & Resolution |
12-inch active matrix TFT LCD (800 x 600 pixels) |
| Processor Option |
Intel Atom x5-E3930 (1.3 GHz, 2 cores, TwinCAT 3 performance class 40) |
| System Memory |
4 GB DDR4 RAM |
| Storage System |
40 GB CFast card (solid-state storage) |
| Ethernet Interfaces |
2 x 10/100/1000BASE-T RJ45 with IP65-rated gland connections |
| Serial Port |
1 x RS232 in backplane (DIN 12-pin IP65; supports conversion to DB9) |
| Operating Voltage |
24 V DC |
| Protection Class |
IP65 (dust-tight and protected against low-pressure water jets) |
| Housing Construction |
Fully enclosed aluminum housing |
| Operating Temperature |
0 to 45 Celsius |
| Mechanical Mount |
Mounting arm adapter, 4 x M6 x 18 mm threaded pattern |
| Operating System |
Windows 10 IoT Enterprise |
| Shipping Weight (Calculated) |
8.00 kg (17.64 lbs) |
Connections and Interfaces
| Port / Terminal |
Functional Assignment |
| Power Input |
24 V DC power supply via dedicated IP65 plug connector |
| LAN1 / LAN2 |
Dual 1000BASE-T Ethernet interfaces for independent IP networks |
| RS232 Interface |
12-pin DIN connector located in the backplane; requires DB9 adapter |
Empirical Engineering Insights
Alternative Models & Compatibility
The CP77xx Series represents a unified, non-ventilated fanless architecture. Ensure that when upgrading from legacy CP7700 or early CP7701 models, your TwinCAT runtime license corresponds directly to the Performance Class of the newer Intel Atom x5 processor (typically TC3 Performance Class 40). Hardware drivers for the integrated IP65-sealed RJ45 network controllers are natively compiled under Windows 10 IoT Enterprise, requiring careful restoration of target configurations during software migration.
Application Pitfalls & Engineering Notes
Because the housing relies strictly on passive conduction through its heavy aluminum structure, thermal dissipation limits are critical. Maintain ambient environmental temperatures below 45 Celsius in the vicinity of the mounting arm. Avoid mounting near high-temperature exhaust paths or direct-radiation sources, which can induce CPU thermal throttling. Verify that the sealing gaskets on the IP65-rated gland covers are correctly seated whenever external interfaces (USB/LAN/RS232) are accessed during maintenance.
Commissioning & Wiring Tips
To ensure consistent electromagnetic compatibility (EMC), establish a low-impedance grounding connection directly through the mounting arm adapter. Ensure the mounting pipe has metal-to-metal contact with the machine chassis ground. Use double-shielded, stranded Cat6 Ethernet cables terminated with heavy industrial RJ45 hoods to preserve the IP65 environmental rating while isolating signals from high-frequency industrial noise.
Installation Guidelines
CRITICAL WARNING: SAFETY FIRST
Always isolate and de-energize the master 24 V DC power distribution loop prior to initiating mounting arm installation or making wiring connections. Ensure all residual electrical charge has completely dissipated. Only utilize mounting hardware designed for M6 threaded installations to prevent damage to the backplane casting.
1
Inspect the mounting arm adapter located on the rear panel of the panel PC. Verify that all four M6 threaded holes are clean and free of debris.
2
Align the adapter pattern with the industrial mounting arm flange. Secure the system with four high-tensile M6 bolts, ensuring thread engagement depth is precisely managed within the 18 mm limit.
3
Route your communication cables and the 24 V DC power cord through the hollow internal channel of the mounting arm. Ensure no sharp bends are made to the industrial cable assemblies.
4
Connect the pre-configured power cable, hand-tighten the IP65 connector sleeves, and secure the protective cable entry covers to preserve environmental isolation before applying electrical power.