New ABB PM556-TP-ETH AC500 CPU with Integrated Ethernet
Manufacturer: ABB
-
Part Number: PM556-TP-ETH 3ABD00034186
Condition：New with Original Package
Product Type: PLC Processor Modules
-
Country of Origin: Swden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The PM556-TP-ETH 3ABD00034186 provides the primary computational power for the AC500 automation environment. It utilizes a 32-bit RISC architecture to handle intensive 1EC 61131-3 programming tasks, including Ladder Logic and Structured Text. We supply this unit as 100% Brand New and Original in factory packaging, ensuring optimal firmware compatibility and hardware longevity for mission-critical manufacturing and water treatment applications.
Technical Specifications
| Parameter | Details |
| Model Number | PM556-TP-ETH |
| Part Number | 1SAP121200R0071 (3ABD00034186) |
| Processor Architecture | 32-bit RISC CPU (~200 MHz) |
| Program Memory | 1 MB Flash |
| Data Memory | 512 KB RAM |
| Backup Memory | 128 KB Battery-backed SRAM |
| Communication Ports | 1x Ethernet (10/100 Mbps), 1x RS-232, 1x RS-485 |
| Programming | IEC 61131-3 (LD, ST, FBD, SFC, IL) |
| Input Power | 24 VDC |
| Operating Temp | –25 °C to +60 °C |
| Weight | 0.40 kg |
Engineering Advantages
The PM556-TP-ETH addresses specific industrial deployment challenges through its integrated connectivity and rugged design:
-
Integrated Multi-Protocol Ethernet: The built-in 10/100 Mbps Ethernet port eliminates the need for external communication gateways. It supports simultaneous programming via PS501 Control Builder and real-time data streaming to SCADA/HMI systems, reducing both hardware costs and configuration time.
-
Non-Volatile Data Security: The module includes 128 KB of battery-backed SRAM. This hardware layer protects critical process variables and machine states during sudden power loss, enabling the PLC to resume operations without manual data re-entry.
-
Extreme Environmental Tolerance: Unlike standard controllers, the PM556-TP-ETH operates within a broad temperature range of –25 °C to +60 °C. This allows for installation in outdoor utility cabinets or unheated plant environments without specialized climate control.
-
High-Speed RISC Execution: The 32-bit RISC processor handles high-density I/O calculations with minimal jitter. This ensures that fast-moving manufacturing lines remain synchronized, even when the CPU manages multiple communication protocols and complex logic sequences simultaneously.
FAQs
Does the PM556-TP-ETH include the battery for SRAM backup?
The module supports an external battery for data retention. While the hardware is ready for backup, you should verify if your specific maintenance protocol requires a fresh lithium battery (typically TA521) for program retention during extended storage or de-energized states.
Which software version is required to program this CPU?
The PM556-TP-ETH is fully compatible with the ABB PS501 Control Builder engineering software. Ensure your software license supports the AC500 platform to access the full range of IEC 61131-3 programming tools and hardware configuration libraries.
Can I replace a PM556-TP-ETH while the PLC rack is powered?
The AC500 platform supports hot-swappable I/O, but for the CPU module, we recommend following standard safety procedures for processor replacement. Always back up the current application program before swapping the main CPU to ensure a seamless transition of the machine state.
What is the maximum number of I/O modules this CPU can manage?
The PM556-TP-ETH manages up to 7 local expansion modules directly on the terminal base. For larger systems, it coordinates thousands of remote I/O points via the integrated Ethernet or RS-485 ports using fieldbus protocols.