ABB PM876-1 3BDH000707R1 Unit (CPU) Module

Original price was: $5,600.00.Current price is: $2,100.00.

The ABB PM876-1 3BDH000707R1 is a high-performance redundant CPU module for ABB AC 800M DCS, designed to execute complex process control logic with ultra-fast processing speed, 1:1 hot standby redundancy, and seamless integration with distributed I/O for mission-critical industrial applications.

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Category: ABB

Description

Parameter	Details
Model	PM876-1 (Order No.: 3BDH000707R1)
Manufacturer	ABB
Product Type	Redundant Central Processing Unit (CPU) Module for AC 800M DCS
Processing Performance	1.6 GHz 32-bit RISC processor; supports up to 20,000 function blocks (max executable)
Memory	512 MB DDR3 RAM (volatile, for real-time operations); 256 MB Flash memory (non-volatile, for program/data storage)
Redundancy Support	1:1 hot standby redundancy; automatic switchover time < 50 ms (ensures zero process interruption)
Communication Interfaces	2 x Gigabit Ethernet (10/100/1000 Mbps, RJ45, for DCS network); 1 x RS-232 serial port (DB9, for local configuration)
Supported Protocols	PROFINET IRT, Modbus TCP, Ethernet/IP, OPC UA, FOUNDATION Fieldbus H1/HSE, PROFIBUS DP
Power Supply	24 V DC ±10% (dual redundant input, reverse polarity protected); 1.2 A typical current draw @ 24 V DC
Power Consumption	28.8 W (typical at 24 V DC)
Operating Temperature Range	-25°C to +70°C (ambient, when installed in AC 800M chassis)
Storage Temperature Range	-40°C to +85°C
Relative Humidity	5% – 95% RH (non-condensing, up to 40°C; no condensation allowed)
Protection Rating	IP20 (front panel, compliant with IEC 60529; requires chassis mounting for dust/water protection)
Dimensions (W x H x D)	38 mm × 100 mm × 165 mm (fits standard AC 800M 4U/8U chassis slots)
Weight	0.42 kg
Mounting Type	Chassis-mounted (dedicated slot in ABB AC 800M DCS chassis; no external mounting hardware required)
Certifications	IEC 61131-2 (industrial control equipment), IEC 61508 (SIL 3, for safety-critical loops), ATEX (Ex nA IIC T4 Ga), UL 508, CE
Key Features	Hot-swap capability (supports module replacement without system shutdown); built-in self-diagnostics (fault logging, alarm triggering, and status monitoring); secure firmware update (encrypted to prevent unauthorized modifications); compatibility with ABB Control Builder M software
System Compatibility	ABB AC 800M Distributed Control System; ABB I/O modules (AI890, DI890, DO890, AO890); ABB Human-Machine Interfaces (HMI) like Operate IT
Applications	Mission-critical process control in oil & gas (upstream/downstream), chemical processing, power generation (thermal/nuclear), water/wastewater treatment, and pulp & paper industries

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About brand

AC 800M is a family of rail-mounted modules, consisting of CPUs, communication modules, power supply modules and various accessories. There are several CPU modules to choose from, ranging from single units with medium processing power and memory to fully redundant units with high processing power.

● AC 800M Controllers
● S800 I/O
● AC 800M Communication interfaces
● S100 I/O Communication interfaces
● Panel 800 series
● Medium and high voltage series
● Other systems