Overview
Configured for CPU execution, program storage, and field communication management in the ABB AC500 PLC platform, the ABB PM571 1SAP130100R0100 (PM571 Processor Module) provides direct electrical and logical control processing. The module operates from a 24 VDC supply, incorporates 64 kB user program memory, supports configurable RS232/RS485 serial communication, and interfaces with local and distributed I/O structures through the AC500 architecture.
Suffix Breakdown & Model Matrix
The supplied documentation identifies PM571 1SAP130100R0100 as a fixed catalog number within the AC500 CPU family. No official suffix decomposition for the ordering code is specified in the available technical references; therefore, no internal ordering matrix is provided.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM571 1SAP130100R0100 |
| Brand | ABB |
| Series | AC500 |
| Product Type | Processor Module / PLC CPU |
| Power Supply | 24 VDC |
| User Program Memory | 64 kB |
| User Data Memory | 28 kB |
| Memory Technology | Flash EPROM, Non-Volatile RAM, SD Card Support |
| Serial Ports | 2 x RS232/RS485 Configurable |
| Communication Protocols | Modbus RTU, ASCII, CS31 Master |
| Display | Integrated LCD |
| Function Keys | 8 |
| I/O Expansion | Local I/O Bus Expansion |
| Digital I/O Capacity | Up to 320 DI, 240 DO |
| Analog I/O Capacity | Up to 160 AI, 160 AO |
| Mounting Method | TH35-15 DIN Rail |
| Protection Rating | IP20 |
| Operating Position | Horizontal; Vertical with Derating |
| Weight | Approx. 0.18 kg |
| Dimensions | 54 mm x 76 mm x 68 mm |
| Origin | Germany |
| Power Consumption | Not Specified |
Backplane Communication and I/O Scaling
The PM571 exchanges process data through the AC500 local I/O bus and supports serial communication through two independently configurable RS232/RS485 interfaces. Supported communication functions include Modbus RTU master/slave operation, ASCII messaging, and CS31 master communication.
The processor stores application code in Flash EPROM and supports SD card storage for program backup and transfer functions. Expansion modules are managed through the AC500 backplane architecture, allowing scalable digital and analog I/O integration within a single controller system.
Frequently Asked Questions
Q: Does the PM571 support hot replacement while the system remains energized?
A: Available documentation does not specify hot-swap capability. CPU replacement should be performed with system power removed unless otherwise stated by ABB documentation for the specific installation.
Q: Where is the application program stored?
A: The controller stores executable applications in onboard non-volatile memory and supports SD card storage for backup and recovery operations.
Q: Can firmware and application data be transferred using an SD card?
A: Yes. The PM571 supports SD card-based storage functions for application backup, restoration, and controller maintenance procedures.
Field Installation Guidelines
- Mount the processor on a TH35 DIN rail according to IEC 60715 requirements.
- Verify 24 VDC supply polarity before energizing the controller.
- Route communication wiring separately from power and motor cables.
- Ground cable shields according to the site grounding philosophy.
- Maintain sufficient ventilation clearance around the CPU and adjacent expansion modules.
- Verify firmware compatibility between the processor and installed I/O modules before commissioning.
- Use approved SD cards when performing backup or restoration procedures.
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