ABB Processor 958481321220 350211080320 CPU Module
The ABB Processor 958481321220 (350211080320) is a high-performance CPU module in the AC500 PLC family. Designed for complex automation tasks, it offers large memory capacity, dual Ethernet ports for redundancy, and support for multiple fieldbuses. It is ideal for large-scale manufacturing lines, energy management systems, and critical infrastructure control.
Technical Specifications
Product ID: 958481321220, 350211080320
Processor: 32-bit ARM Cortex-A9 (800 MHz)
Program Memory: 1 MB (expandable via SD)
Data Memory: 2 MB (battery-backed)
Execution Speed: 0.01 µs per boolean instruction
I/O Capacity: 2048 local, 32768 remote
Ethernet Ports: 2 × 10/100Base-T (switch ports, support DLR)
Serial Ports: 1 × RS-232, 1 × RS-485
Fieldbus Interfaces: PROFIBUS DP (master), CANopen, Modbus TCP/RTU
Redundancy: Media redundancy protocol (MRP), device-level ring (DLR)
Display: 4-line LCD with diagnostic LEDs
Real-Time Clock: Yes, battery-backed
Power Supply: 24 V DC, 8 W typical
Operating Temperature: -20°C to +60°C
Dimensions: 125 × 110 × 60 mm
Advanced Features
The CPU supports multi-tasking with up to 32 tasks and cycle times down to 1 ms. It includes built-in web server for remote diagnostics, email notification, and data logging to SD card. The dual Ethernet ports can be configured as a switch for daisy-chaining multiple devices, or as separate IP addresses for network segmentation. The module also supports hot-standby redundancy with a second CPU.
Programming and Connectivity
Programming is done with Automation Builder, which includes CoDeSys V3 runtime. The CPU supports OPC UA server for secure data exchange with higher-level IT systems. It also features an integrated FTP server for file transfer and a SQL client for database logging.
Application Domains
This processor is suitable for automotive assembly lines, water treatment SCADA systems, power distribution automation, and large material handling systems. Its high performance and redundancy features make it a reliable choice for critical processes.
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