Derivative Action in PID Control Without Noise Problems
Learn what derivative action contributes to a PID loop, why it can amplify measurement noise and setpoint changes, and how filtering, sampling, and staged tests make D tuning safer.
Manufacturer: Siemens
Product No.: 6AV7803-0AB21-2AC0
Country of origin:Germany
Product Type: Panel PC
Barcode: 85371098
Payment: T/T, Western Union
Weight: 17g
Dimensions: 60.0 x 56.5 x 30.0 cm
Shipping port: Xiamen
Warranty: 12 months
The Siemens 6AV7803-0AB21-2AC0 is a SIMATIC Panel PC 677 designed for industrial human-machine interface (HMI) and control applications. This unit features a 15-inch display with a keypad for operator input and a native resolution of 1024 x 768 pixels. It is powered by an Intel Pentium M 770 processor running at 1.6 GHz and operates on a 24 VDC power supply. The system is equipped with 1 GB of RAM, a 160 GB SATA hard drive, and comes pre-installed with the Windows XP Professional operating system. A front-side USB port provides convenient access for data transfer and peripheral connection.
| General Information | |
|---|---|
| Manufacturer | Siemens |
| Part Number | 6AV7803-0AB21-2AC0 |
| Series | SIMATIC Panel PC 677 |
| Product Type | Panel PC |
| Product Lifecycle | Obsolete |
| Display & Interface | |
| Display Size | 15-inch |
| Interface Type | Keypad |
| Resolution | 1024 x 768 pixels |
| Front Interface | USB |
| Processing & Memory | |
| Processor | Intel Pentium M 770 |
| CPU Clock Speed | 1.6 GHz |
| Front Side Bus (FSB) | 533 MHz |
| L2 Cache | 2 MB SLC |
| RAM | 1 GB DDR266 SDRAM (1 x 1 GB) |
| Hard Drive | 160 GB SATA, 3.5-inch |
| Optical Drive | DVD+/-RW+/-R |
| Software & Electrical | |
| Operating System | Windows XP Professional MUI (EN, GE, FR, IT, SP, JP, CHN, KOR) |
| Power Supply | 24 VDC |
| Logistics | |
| Country of Origin | Germany (Estimate) |
| Package Dimensions (Calculated) | 60.0 x 56.5 x 30.0 cm |
| Shipping Weight | 17.00 kg |
| Commodity Code | 85371098 |
| ECCN | N |
This is an obsolete product running an unsupported operating system (Windows XP). It receives no security updates and may be incompatible with modern networks and software. This unit is intended for direct replacement in isolated, legacy systems only. The user assumes all risks associated with cybersecurity and system integration.
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Returns & Warranty

Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|