ABB PM851 controller module

We will arrange delivery within 3-5 days after receiving the payment.

Our express delivery: DHL and FedEx.

Quality packing for each product

Destination country all taxes & duty to be paid by buyer

Only part of the brand and model, if you have other product needs, please contact us.

ABB PM851 Controller Module

Product Description

Key Specs

• System Compatibility:
  Exclusive to ABB AC 800M DCS; integrates with AC 800M I/O modules (e.g., AI830 analog input, DO810 digital output) via ABB’s proprietary Profinet IRT or Industrial Ethernet backplane; compatible with ABB Control Builder M software (v6.0+) for control program development (IEC 61131-3 compliant) and system configuration.
• Processing Performance:

  Parameter	Specification
  CPU Architecture	Dual-core 32-bit RISC processor (800 MHz clock speed); supports parallel processing
  Control Cycle	Minimum 1ms (for high-speed loops, e.g., turbine speed control); configurable up to 1000ms (for slow processes)
  Memory Configuration	1 GB DDR3 SDRAM (real-time data processing) + 512 MB Flash memory (firmware/configuration storage) + 256 KB battery-backed SRAM (critical data retention)
  Control Capacity	Supports up to 2000 IEC 61131-3 function blocks, 500 PID loops, and 10,000 I/O points

• Communication Interfaces:
  • Backplane/Field Communication: 2× Profinet IRT ports (1 Gbps, for real-time I/O data exchange); 1× Industrial Ethernet port (TCP/IP, for non-real-time data).
  • Upper-Level Integration: 2× Ethernet ports (Modbus TCP, OPC UA) for SCADA/HMI connectivity; 1× RS485 port (Modbus RTU) for local debugging or legacy device integration.
• Redundancy Support:
  • 1:1 hot-standby redundancy (primary/backup configuration); automatic failover time ≤50ms (ensures no process interruption).
  • Redundant power inputs (2× 24V DC, 18-30V DC) and redundant communication paths (Profinet IRT dual-network) for fault tolerance.
• Mechanical & Environmental:
  • Dimensions (W×H×D): 160mm×130mm×220mm (19-inch rack-mounted, standard AC 800M module footprint); weight ~1.8kg.
  • Protection Degree: IP20 (mounted inside control cabinets, protected against solid objects ≥12mm).
  • Operating Conditions: -10°C~+50°C, 5%-95% RH (non-condensing); vibration resistance: 10-500Hz (1g acceleration); shock resistance: 20g (11ms half-sine).
• Compliance: IEC 61131-3 (control programming), EN 61000-6-2 (industrial EMC immunity), NEMA TS 2 (power system compatibility), and IEC 61508 SIL 2 (functional safety).

Core Functions

1. Real-Time Control Logic Execution
   • Runs complex process control algorithms to regulate industrial operations:
     • PID & Advanced Control: Executes up to 500 PID loops (including cascade, ratio, and feedforward control) for parameters like temperature, pressure, and flow—e.g., maintaining boiler steam pressure at 120 bar ±0.5 bar in a power plant.
     • Sequential Logic: Implements IEC 61131-3 sequential function charts (SFCs) for batch processes (e.g., chemical reactor startup/shutdown sequences) and safety interlocks (e.g., "stop fuel supply if flame detector fails").
     • High-Speed Calculations: Processes 1ms control cycles for time-critical tasks (e.g., turbine speed regulation, fast-acting valve control) with minimal latency, ensuring dynamic process stability.
2. Distributed I/O Data Processing & Coordination
   • Manages data flow between the controller and AC 800M I/O modules (analog, digital, pulse):
     • Data Acquisition: Collects raw signals from field sensors (e.g., 4-20mA pressure readings, on/off limit switch status) via Profinet IRT, converts them to physical units (e.g., bar, liters per minute) using preconfigured scaling, and filters noise (via software-based low-pass filters) to eliminate interference.
     • Command Distribution: Sends control signals (e.g., 4-20mA valve position setpoints, digital relay commands) to I/O modules with sub-millisecond synchronization, ensuring coordinated actuation of field devices (e.g., opening/closing valves in a petrochemical pipeline).
     • I/O Diagnostics: Monitors I/O module health (e.g., "AI830 Channel 3 Signal Loss") and transmits diagnostic data to Control Builder M, enabling proactive maintenance of faulty sensors or wiring.
3. Redundant Operation & Fault Tolerance
   • Ensures uninterrupted operation in redundant configurations:
     • Real-Time Synchronization: Continuously synchronizes control logic, process data, and configuration parameters between primary and backup PM851 modules (≤1ms update rate), so the backup is always ready to take over.
     • Automatic Failover: Detects critical faults (e.g., CPU error, memory corruption, communication loss) via built-in self-tests; triggers seamless switchover to the backup module within 50ms—no process shutdown or data loss occurs (critical for applications like nuclear power plant auxiliary systems).
     • Fault Logging: Stores fault events (timestamp, fault code, trigger conditions) in battery-backed SRAM and Flash memory, enabling post-incident analysis (e.g., identifying the root cause of a failover).
4. System Integration & Communication
   • Enables bidirectional data exchange across the automation hierarchy:
     • SCADA/HMI Connectivity: Transmits real-time process data (e.g., reactor temperature, pump status) to upper-level SCADA systems (e.g., ABB 800xA) via OPC UA/Modbus TCP, supporting operator monitoring and remote command execution (e.g., setpoint adjustments).
     • Legacy Device Integration: Communicates with older field devices (e.g., analog chart recorders, legacy PLCs) via the RS485 Modbus RTU port, avoiding costly replacements of functional equipment.
     • Firmware & Configuration Management: Supports remote firmware updates and parameter backups via Ethernet or USB, allowing maintenance without disrupting process operation.
5. Functional Safety (SIL 2 Compliance)
   • Meets IEC 61508 SIL 2 requirements for safety-related functions:
     • Implements safety interlocks (e.g., emergency shutdown of a reactor if pressure exceeds 200 bar) with hardware and software redundancy, preventing common-cause failures.
     • Supports safety-related I/O modules (e.g., ABB AI830S) and safety communication protocols, enabling integration into safety instrumented systems (SIS) for high-risk processes.

Core Advantages

1. High Reliability for Mission-Critical Processes
   Redundant design, SIL 2 compliance, and 99.999% availability ensure minimal downtime—critical for industries where outages cause significant economic losses (e.g., petrochemical refineries, nuclear power plants).
2. Scalability for Large-Scale Systems
   Supports up to 10,000 I/O points and 500 PID loops, making it suitable for large automation projects (e.g., a 1000 MW coal-fired power plant with multiple boilers and turbines) without requiring additional controllers.
3. Fast Processing & Low Latency
   Dual-core 800 MHz CPU and 1ms control cycles handle high-speed processes (e.g., turbine speed control, fast-acting valve regulation) better than entry-level DCS controllers (typically 10ms+ cycles).
4. Seamless AC 800M Integration
   Optimized for the AC 800M ecosystem—pre-integrated with I/O modules, Control Builder M, and ABB 800xA HMI—eliminating compatibility issues (e.g., communication latency, protocol mismatches) common with third-party controllers.

Applications

1. Power Plant Boiler Control
   • Manages a 600 MW coal-fired boiler’s AC 800M system: Executes 80 PID loops (steam pressure, feedwater flow, air/fuel ratio) with 10ms control cycles, processes data from 2000 I/O points (temperature, pressure, level sensors), and communicates with the plant’s 800xA SCADA. Redundant PM851 modules ensure no shutdown during maintenance.
2. Petrochemical Reactor Regulation
   • Controls a polyethylene reactor in a refinery: Runs sequential logic for reactor startup (preheating, catalyst injection, pressure ramp-up) and PID control for temperature (230°C ±1°C) and pressure (25 bar ±0.2 bar). SIL 2-compliant interlocks trigger an emergency shutdown if process variables exceed safety limits.
3. Metallurgical Rolling Mill Coordination
   • Synchronizes 4 rolling stands in a steel mill’s AC 800M system: Processes encoder data (from pulse modules) to control roll speed and tension, executes logic interlocks (e.g., "stop roll 3 if strip thickness > 5mm"), and transmits production data (strip length, thickness) to the mill’s MES system via OPC UA.
4. Water Treatment Plant Process Control
   • Manages a 200,000 m³/day desalination plant: Controls reverse osmosis (RO) membrane pressure (PID loops), coordinates valve actuators (via digital output modules), and logs process data (chlorine dosage, pH levels) for regulatory compliance. The RS485 port integrates with legacy pH meters, avoiding costly replacements.

Precautions

1. Compatibility Check
   • Confirm use with ABB AC 800M DCS—incompatible with ABB low-voltage PLCs (e.g., AC500) or third-party DCS platforms (e.g., Siemens PCS 7) due to proprietary backplane and communication protocols. Verify Control Builder M is v6.0+ to access all advanced control features (e.g., feedforward PID).
2. Redundant Configuration Setup
   • When configuring 1:1 redundancy:
     • Ensure primary and backup modules have identical firmware versions (mismatched firmware causes synchronization errors and failed failover).
     • Use ABB’s Redundancy Configuration Tool to align I/O mappings, PID parameters, and communication settings—unsynchronized data leads to process instability after switchover.
3. Installation Safety
   • Disconnect the control cabinet’s main power (lockout/tagout) before installing the module—backplane voltage (24V DC) and internal capacitors (charged to 5V DC) can cause electric shock or component damage if handled incorrectly.
   • Use anti-static gloves and a grounded workbench—ESD can corrupt CPU or memory chips, leading to intermittent faults (e.g., random reboots).
4. Wiring & Backplane Handling
   • Ensure the module is fully seated in the AC 800M backplane (audible "click" from locking latches)—loose connections cause Profinet communication loss, triggering unnecessary failover.
   • Do not bend the module or apply force to the backplane connector—warping damages the bus interface and prevents data transmission.
5. Firmware & Parameter Management
   • Back up all configurations to a secure location (USB drive or network server) before firmware updates—updates may reset parameters to default values, requiring re-commissioning.
   • Use only ABB-approved firmware (downloaded from ABB’s official portal)—unauthorized firmware versions void warranty and may introduce security vulnerabilities or functional errors.
6. Environmental Protection
   • Operate within -10°C~+50°C—temperatures above 50°C increase CPU load and reduce memory lifespan; below -10°C, the module may fail to boot or experience communication delays.
   • Ensure control cabinet cooling fans and air filters are functional (maintain ≤45°C ambient)—overheating is the leading cause of premature PM851 failure in power plants and refineries.
7. Genuine Replacement
   • Use only ABB-genuine PM851 modules—counterfeit units lack redundancy, SIL 2 compliance, and proper thermal management, leading to unexpected shutdowns (e.g., failed failover during a critical process) or safety hazards (e.g., untriggered emergency shutdowns).
8.  

1. The structure and details of the product：
2. 
3. Please make an inquiry for more models
4. ABB DSMB133 57360001-CY
5. ABB DSMB137 57360001-FA
6. ABB DSMB144 57360001-EL
7. ABB DSMB 144 57360001-EL/1
8. ABB DSMB151 57360001-K
9. ABB DSMB173 57360001-GN
10. ABB DSMB175 57360001-KG
11. ABB DSMB176 57960001-HX
12. ABB DSMB340 57360001-CT/3
13. ABB DSMC112IN 5736-1001-CB-03
14. ABB dsmc 112 57360001-HC
15. ABB DSMD110 5736045-A
16. ABB DSPB112 57340001-K/2
17. ABB DSPB110 57340001-A/3
18. ABB DSPB120 57340001-T
19. ABB DSPC150 57310256-AF/2
20. ABB DSPC154 57310001-BY
21. ABB DSPC155 57310001CX5
22. ABB DSPC157 57310001-GP
23. ABB DSPC170 57310001-GL
24. ABB DSPC170H 57310001-LC/2
25. ABB DSPC171 5731001-CC
26. ABB DSPC172 57310001-ML
27. ABB DSPC1722 57360001-NB/1
28. ABB DSPC172H57310001-MP/2
29. ABB DSCS 141 57520001-EV
30. ABB DSPC31217650001-61
31. ABB DSPC312 27650001-62
32. ABB DSPC322 17650018-1
33. ABB DSPC365 57310001DF/4
34. ABB DSRB110 52841637G
35. ABB DSRF150 57310255A
36. ABB DSRF160 57310255V
37. ABB DSRF180A 57310255-AV 6.27
38. ABB DSRF180M 5731-0255-AT
39. ABB DSRF1825 7310255-AL
40. ABB DSRF182K13 3BSE003571R1
41. ABB DSSA165 48990001-LY
42. ABB DSSB110 48980001E
43. ABB DSSB120 48980002-A
44. ABB DSSB140 4898-0001-P
45. ABB DSSB145 48980001-AP
46. ABB DSSB146 48980001-AP/1
47. ABB DSSB146 48980001-AP/2
48. ABB DSSB170 48980001-AG
49. ABB DSSR122M 48990001-LR
50. ABB DSSR116 48990001FK2
51. ABB DSSR120 48990001-LH
52. ABB DSSR121 48990001-MT
53. ABB DSSR122 48990001-NK
54. ABB DSSS170 52820083-AC
55. ABB DSTA121A 57120001-E/2
56. ABB DSTA002 57120001-RB/1
57. ABB DSTA121 57120001-E/2 6.28
58. ABB DSTA133I 3BYN571200-E/00
59. ABB DSTA170IN 5712-1001-CD/02
60. ABB DSTA180 57120001-ET/3
61. ABB DSTC121 57520001-KH1
62. ABB DSTC456 5751017-L/2
63. ABB DSTC110IN 5752-1001-a/04
64. ABB DSTC130 57510001-A
65. ABB DSTC160 57520001-Z
66. ABB DSTDW150 57160001-AAK
67. ABB DSTD120 57160001-P/1
68. ABB DSTD150A 57160001-UH/1
69. ABB DSTD155 57160001-E2/1
70. ABB DSTK126 26390582-AY
71. ABB DSTK151V 5730032-H
72. ABB DSTK1522 6390603-H
73. ABB DSTK1552 6390603-P
74. ABB DSTK1762 6390603-AZ
75. ABB DSTV110 57350001-A
76. ABB DSTX1506 2250001-E/4
77. ABB DSTX001 57360001-LU/1
78. ABB DSTX151 57350001-EB/1
79. ABB DSTX1525 7350001-EF
80. ABB AX522 1SAP250000R0001

 Other best-selling products：