Siemens 6AV7872-0EA20-1AA0 SIMATIC Panel PC 677B

Description

This is a SIMATIC Panel PC 677B from Siemens, model 6AV7872-0EA20-1AA0, designed for industrial human-machine interface (HMI) and control applications. It features a 15-inch touchscreen display with a 1024 x 768 resolution. The unit is powered by an Intel Celeron M 440 processor at 1.86 GHz and is equipped with 1 GB of DDR2 RAM. Connectivity options include dual 10/100/1000 Mbit/s Ethernet ports, four rear USB 2.0 ports, a front-side USB interface, and a serial COM1 port. This configuration includes a 110/230V AC power supply with a power cable for Switzerland and provides two PCI slots for expansion.

Features

• 15-inch touchscreen display with 1024 x 768 pixel resolution
• Integrated Intel Celeron M 440 processor (1.86 GHz, 1MB SLC)
• 1 GB DDR2 RAM for application processing
• Dual Gigabit Ethernet ports (2x 10/100/1000 Mbit/s)
• Four rear USB 2.0 ports and one front-side USB interface for peripheral access
• One serial (COM1) interface for legacy device communication
• Two PCI slots for hardware expansion
• Operates on a 110/230V AC power supply

Applications

• Process visualization and control systems
• Machine data acquisition and monitoring
• Factory automation operator interfaces
• Supervisory Control and Data Acquisition (SCADA) nodes
• Industrial computing platforms

Technical Specifications

Installation Guidelines

1. 1
   De-energize Equipment: Before installation, completely de-energize the control cabinet or mounting location. Verify the absence of voltage using a calibrated multimeter. Apply LOTO procedures as required by site safety protocols.
2. 2
   Panel Mounting: Prepare the panel cutout according to the manufacturer's dimensional drawings. Secure the Panel PC into the cutout using all provided mounting clamps, tightening them evenly to ensure a proper seal and prevent chassis distortion.
3. 3
   Protective Earth Connection: Connect a low-impedance protective earth (PE) conductor to the designated grounding terminal on the Panel PC chassis. This is critical for both operator safety and noise immunity. Use the appropriate wire gauge and a secure, vibration-resistant termination.
4. 4
   Connect Power: Connect the 110/230V AC power supply cable to the unit's power input connector. Ensure the source voltage matches the unit's rating. Route the power cable away from sensitive signal or communication wiring to minimize electrical noise.
5. 5
   Connect Interfaces: Connect Ethernet, USB, and serial cables as required by the application. Use shielded cables for all data communication where possible. Ensure all connectors are fully seated and secured.
6. 6
   Final Checks and Power-Up: After all connections are made, remove LOTO devices and re-energize the cabinet. Power on the Panel PC and verify correct boot-up and system operation. Proceed with software configuration and commissioning.