Siemens 6AV7721-1AA00-0AC0 SIMATIC Panel PC 670

Description

This device is a Siemens 6AV7721-1AA00-0AC0 SIMATIC Panel PC 670, a standard configuration industrial human-machine interface (HMI). It is equipped with a 10-inch color TFT display, an Intel Celeron 1.2 GHz processor, and 128 MB of SDRAM. The unit includes a 40 GB EIDE hard disk drive and is powered by a 24V DC supply for both the front panel and the PC box. This model comes pre-installed with the Windows NT 4.0 SP6a Workstation operating system in English. Please note that this product is considered obsolete by the manufacturer, making it suitable for legacy system maintenance and spare parts inventory.

Features

• Integrated 10-inch color TFT display for process visualization.
• Powered by an Intel Celeron 1.2 GHz processor.
• Includes 128 MB of SDRAM-133 memory.
• 40 GB EIDE hard disk drive for operating system and application storage.
• Operates on a 24V DC power supply.
• Pre-loaded with Windows NT 4.0 SP6a Workstation (English).

Applications

• Machine-level control and visualization in manufacturing.
• Process monitoring and data acquisition systems.
• Replacement unit for existing SIMATIC PC 670 installations.
• Industrial automation control rooms and operator stations.

Technical Specifications

Installation Guidelines

1. 1 De-energize Equipment: Before installation, ensure all power to the control cabinet or panel is disconnected and locked out/tagged out (LOTO). Verify the absence of voltage with a calibrated meter.
2. 2 Panel Cutout: Prepare the mounting cutout in the enclosure door or panel according to the manufacturer's specified dimensions for the PC 670 series. Ensure the mounting surface is clean, flat, and free of debris.
3. 3 Mounting: Insert the Panel PC into the cutout from the front. Secure it from the rear using the provided mounting clamps. Tighten the clamps evenly and sequentially to ensure a uniform seal against the panel gasket. Do not overtighten.
4. 4 Grounding: Connect the functional earth (FE) terminal on the rear of the PC chassis to the main protective earth bus bar of the control cabinet using a low-impedance conductor. A secure ground connection is critical for noise immunity and safety.
5. 5 Power Connection: Connect a stable, filtered 24V DC power source to the designated power input terminals. Ensure correct polarity. Use appropriately sized wiring for the current draw and route power cables separately from high-voltage or noisy signal cables.
6. 6 Final Checks: Connect all required communication and I/O cables. After verifying all connections, remove the LOTO and re-energize the cabinet. Power on the Panel PC and confirm proper boot-up of the operating system.