Allen-Bradley 1771-IG: TTL Logic and 5 V Wiring Checks
Check 1771-IG TTL HIGH/LOW logic thresholds, field supply ripple and 1771-WC wiring before replacing an input module.
Manufacturer: BECKHOFF
Product No.: CP6911-0000-0000
Country of origin:Germany
Product Type: HMI Control Panels
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
Optimized for space-saving installation in control cabinet doors or mounting arms, the Beckhoff CP6911-0000-0000 functions as a high-performance industrial operator interface featuring a 12-inch TFT display with an 800 x 600 SVGA resolution. This unit integrates the proprietary Beckhoff DVI/USB Extended interface technology, allowing the control panel to operate at distances up to 50 meters from the industrial PC. Built with a robust aluminum front bezel and a sheet-steel rear cover, it delivers reliable operation in demanding manufacturing environments while maintaining a slim physical profile.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Beckhoff Automation |
| Model Number | CP6911-0000-0000 |
| Display Size / Type | 12-inch TFT LCD |
| Resolution | 800 x 600 pixels (SVGA) |
| Touch Screen Type | Single-finger analog resistive touch |
| Interface Technology | DVI-E (DVI Extended) and USB-E 2.0 |
| Maximum Connection Distance | Up to 50 meters from Industrial PC |
| Supply Voltage | 24 V DC (20.4 to 28.8 V DC) |
| Operating Temperature | 0 to 55 degC |
| Protection Rating | Front: IP65, Rear: IP20 |
| Housing Material | Aluminum front bezel, sheet-steel rear cover |
| Country of Origin | Germany |
| Shipping Weight (Calculated) | 8.0 kg |
| Port / Terminal | Interface Type | Functional Assignment |
|---|---|---|
| DVI-E Input | DVI-D Connector | Receives extended digital video signal from transmitter unit |
| USB-E 2.0 | RJ45 Port | Extended USB 2.0 signal connection (up to 480 Mbit/s) |
| USB Downstream | 2 x USB 2.0 Type A | Direct connection for local peripherals (keyboard, mouse, flash drive) |
| Power Input | 3-pin Terminal Block | 24 V DC power supply connection (+24V, 0V, PE) |
The CP6911-0000-0000 relies on a dedicated transmitter module (such as the Beckhoff CU8801 USB Extended transmitter box and a compatible DVI splitter/transmitter) on the host PC side. It cannot be connected directly to standard PC USB ports over distances exceeding 5 meters without this active transmitter hardware. Ensure your host PC is equipped with the corresponding CU88xx series transmitter before commissioning.
When routing the DVI-E and USB-E 2.0 cables, avoid running them in the same wire duct as high-voltage AC motor lines or variable frequency drive (VFD) output cables. High electromagnetic interference (EMI) can cause intermittent USB dropouts or screen flickering. Always maintain a minimum separation of 100 mm from power cables.
For the USB-E 2.0 RJ45 connection, use high-quality, shielded Cat 5e or Cat 6 STP (Shielded Twisted Pair) cabling. Ensure that the shield of the RJ45 connector is properly grounded at both ends. Additionally, connect the functional earth (FE) terminal on the rear of the panel directly to the central control cabinet ground busbar using a short, low-impedance copper strap.
CRITICAL WARNING:
Before initiating installation, mounting, or wiring procedures, ensure that the main power supply to the control cabinet is completely de-energized. Verify the absence of voltage using a calibrated measuring instrument. Failure to isolate power may result in electrical shock, equipment damage, or communication interface failure.
Prepare the cabinet door cutout according to the exact installation dimensions specified in the Beckhoff technical manual for 12-inch control panels.
Ensure the flat sealing gasket is correctly positioned on the front bezel of the CP6911 to guarantee an IP65 seal against the cabinet surface.
Insert the panel into the cutout and secure it from the rear using the integrated pull-out clamping levers. Tighten the screws evenly to the specified torque to avoid warping the front bezel.
Connect the 24 V DC power supply to the terminal block, ensuring correct polarity. Connect the DVI-E and USB-E 2.0 cables before powering up the system.
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Returns & Warranty

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Returns & Warranty
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| Country of origin |
Germany
|