ABB PM861AK02 - Field controller main unit (Redundant controller) 16M RAM
ABB PM861AK02 Detailed Function Introduction
Redundancy design
Dual-processor architecture (32-bit RISC CPU) supports CPU redundancy switching (active/standby mode) and seamlessly takes over in case of failure.
Synchronization mechanism: the active and standby controllers synchronize data and status in real time.
High performance processing
16MB RAM(7.155MB of available application memory) supports real-time multitasking.
High-efficiency superscalar RISC CPU(1 GHz) can execute control logic and data processing quickly.
communication interface
Dual Ethernet ports (RJ45) are used to control the network.
Serial interface (RS-232C/RS-485) and PROFIBUS/DeviceNet protocols.
Reliability enhancement
Error detection and correction (ECC memory).
Battery backup: keep data when the main power supply fails.
Expansion and configuration
CompactFlash interface stores programs/data.
Modular design supports I/O expansion (4-32 points).
application area
Petroleum and chemical industry
Process control (such as refinery reactor monitoring).
electric power system
Generator set control (redundancy ensures power grid stability).
Water treatment and pharmacy
Water quality monitoring/filling line control (required by high hygiene standards).
Machinery manufacturing
Production line automation (machine tool logic control).
Building automation
HVAC/ lighting system integration (centralized management through Ethernet).
Core advantage
High availability (MTBF optimization)
Adaptation to harsh environment (IP20 protection/working at-40 ~ 70℃)
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