Tutto sui PLC: la CPU
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
The Siemens 6ES7647-6MA10-0AX0 is a SIMATIC BOX PC 840 V2, a robust industrial computer designed for demanding automation environments. This unit is configured with a Celeron 2.0 GHz processor featuring a 400 MHz FSB and 128 KB SLC cache. It includes 256 MB of DDR SDRAM and an 80 GB EIDE hard disk drive, supplemented by a floppy disk drive (FDD). For network connectivity, it provides a single 10/100 Mbit/s Ethernet RJ45 port, alongside two high-current USB ports for peripheral devices. The system features onboard AGP graphics with selectable 8/16/32 MB shared memory and is powered by a wide-range 110/230V AC industrial power supply with NAMUR compliance. Integrated system health functions include a hardware watchdog and temperature monitoring.
| Specification | Value |
|---|---|
| Manufacturer | Siemens |
| Product Series | SIMATIC BOX PC |
| Model | PC 840 V2 |
| Part Number | 6ES7647-6MA10-0AX0 |
| Processor | Celeron 2.0 GHz, 400 MHz FSB, 128 KB SLC |
| Memory (RAM) | 256 MB DDR SDRAM |
| Storage | 80 GB HDD EIDE + FDD |
| Graphics | Onboard AGP, 8/16/32 MB Shared Memory |
| Ethernet | 1 x 10/100 Mbit/s RJ45 |
| USB Ports | 2 x USB (High Current) |
| Expansion Slots | 2 x PCI, 2 x ISA/PCI, 1 x ISA |
| Power Supply | 110/230V AC Industrial Power Unit with NAMUR |
| Operating System | Not included |
| Product Lifecycle Phase | Obsolete |
| Shipping Weight | 11.50 kg |
| Country of Origin | Germany (Estimate) |
| Package Dimensions (Calculated) | 48.0 cm x 45.0 cm x 25.0 cm |
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Returns & Warranty

The Siemens 6ES7647-6MA10-0AX0 is a SIMATIC BOX PC 840 V2, a robust industrial computer designed for demanding automation environments. This unit is configured with a Celeron 2.0 GHz processor featuring a 400 MHz FSB and 128 KB SLC cache. It includes 256 MB of DDR SDRAM and an 80 GB EIDE hard disk drive, supplemented by a floppy disk drive (FDD). For network connectivity, it provides a single 10/100 Mbit/s Ethernet RJ45 port, alongside two high-current USB ports for peripheral devices. The system features onboard AGP graphics with selectable 8/16/32 MB shared memory and is powered by a wide-range 110/230V AC industrial power supply with NAMUR compliance. Integrated system health functions include a hardware watchdog and temperature monitoring.
| Specification | Value |
|---|---|
| Manufacturer | Siemens |
| Product Series | SIMATIC BOX PC |
| Model | PC 840 V2 |
| Part Number | 6ES7647-6MA10-0AX0 |
| Processor | Celeron 2.0 GHz, 400 MHz FSB, 128 KB SLC |
| Memory (RAM) | 256 MB DDR SDRAM |
| Storage | 80 GB HDD EIDE + FDD |
| Graphics | Onboard AGP, 8/16/32 MB Shared Memory |
| Ethernet | 1 x 10/100 Mbit/s RJ45 |
| USB Ports | 2 x USB (High Current) |
| Expansion Slots | 2 x PCI, 2 x ISA/PCI, 1 x ISA |
| Power Supply | 110/230V AC Industrial Power Unit with NAMUR |
| Operating System | Not included |
| Product Lifecycle Phase | Obsolete |
| Shipping Weight | 11.50 kg |
| Country of Origin | Germany (Estimate) |
| Package Dimensions (Calculated) | 48.0 cm x 45.0 cm x 25.0 cm |
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
|