Product Description
ABB PM851AK01 (Part No. 3BSE066485R1) is a processor unit of AC 800M series, compatible with ABB Ability System 800xA DCS, non-redundant basic controller. The package includes PM851A CPU board, TP830 baseplate, CEX-bus terminator TB850, ModuleBus terminator TB807 and memory backup battery, software license not included. It supports IEC 61131-3 programming standard, equipped with real-time clock, LED status indicators and CF card slot. Communication ports include Ethernet and PROFIBUS DP. DIN rail modular mounting, IP20 protection. It executes logic calculation, data acquisition and closed-loop control for medium & small process automation, widely used as economical CPU spare part for 800xA system.
Specifications
- Model: PM851AK01
- Article No.: 3BSE066485R1
- Brand: ABB
- Series: AC 800M (System 800xA)
- CPU Clock: 24 MHz
- Total Memory: 12 MB
- Application RAM: 6.253 MB
- Boolean Execution Speed: 0.46 ms for 1000 boolean operations
- Redundancy: Non-redundant
- Communication: 1 × Ethernet port, RS232C COM3, isolated debug COM4
- Program Storage: Flash, Compact Flash Card
- Mounting: DIN rail
- Protection Class: IP20
- Power Supply: 24VDC
- Dimension (W×H×D): 119 mm × 186 mm × 135 mm
- Net Weight: approx. 1.2 kg
- Operating Temperature: 0℃ ~ +60℃
- Storage Temperature: -40℃ ~ +85℃
- HS Code: 8537109100
- Certification: CE, UL, EMC
- Included Accessories: TP830 baseplate, TB850, TB807, backup battery
Application
- DCS/PLC automation for power, chemical, water treatment, metallurgy and building material industries;
- Analog closed-loop regulation, digital interlock logic and sequence control;
- Signal acquisition & output cooperating with S800 I/O modules;
- Spare replacement and system retrofit for legacy System 800xA;
- Automation control for pump stations, boilers, compressors and auxiliary workshops.
AC800M Series Controller Models
- PM851AK01: Basic economical type, 24MHz,12MB, non-redundant (this item)
- PM856AK01: 96MHz,16MB, redundant support
- PM857K01: 32MB, high integrity SIL safety, single CPU
- PM857K02: 32MB, high integrity SIL safety, redundant
- PM860AK01: 16MB, mid-range general controller
- PM861AK01: Classic widely stocked controller
- PM864AK01: 32MB, high performance general controller
- PM866K01: 64MB, high-end large capacity controller
- PM891K01: 256MB, high-performance heavy-duty controller
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