3(1) 1(1) 2(1)

The ABB PM591-2ETH CPU Module is a powerful controller designed for the AC500 PLC automation platform, delivering advanced processing capability and reliable network communication for modern industrial systems. Built for complex automation environments, this module integrates a high-performance processor with dual Ethernet interfaces, allowing efficient connectivity between PLC networks, SCADA systems, and distributed field devices.

Engineered for scalability and long-term industrial reliability, the PM591-2ETH supports large control programs, real-time data processing, and flexible system expansion. The dual Ethernet architecture enables redundant communication paths or network segmentation, which improves system stability and operational efficiency in demanding production environments.

With its compact DIN-rail design and industrial-grade components, the PM591-2ETH provides a dependable control core for machine builders, plant automation engineers, and system integrators seeking robust PLC solutions.

Technical Specifications

Parameter	Specification
Model	PM591-2ETH
Brand	ABB
Product Type	CPU Module
PLC Platform	AC500
Processor Type	Industrial PLC CPU
Communication Interfaces	2 × Ethernet, RS232 / RS485
Programming Standard	IEC 61131-3
Power Supply	24 V DC
Program Memory	4 MB
Mounting Type	DIN Rail
Protection Class	IP20
Dimensions (L × W × H)	135 × 90 × 65 mm
Weight	0.48 kg

Recommended Related Models

Model	Description
PM590-ETH	High-Performance PLC CPU with Ethernet
PM585-ETH	Industrial Ethernet PLC Processor
PM583-ETH	Compact PLC CPU Controller
PM582-ETH	Network-enabled PLC Controller
PM571-ETH	Entry-level PLC CPU Module

Popular Allen Bradley Models

Model	Module Type
1756-L73	ControlLogix CPU Module
1756-EN2T	Ethernet Communication Module
1769-L33ER	CompactLogix Controller
1734-IB8	Digital Input Module
1734-OB8	Digital Output Module

Applications

The ABB PM591-2ETH PLC CPU module is widely used in advanced automation systems that require high processing performance and reliable communication.

Typical industrial applications include:

Automated manufacturing and production lines
Industrial machine control systems
Process automation and plant control
Energy and power management systems
Material handling and logistics automation
Smart factory and digital manufacturing infrastructure

Its dual Ethernet capability enables smooth integration with industrial networks, operator panels, and SCADA monitoring platforms.

Advantages

Dual Ethernet Communication
Two integrated Ethernet ports allow flexible network configuration and improve communication reliability.

High-Performance PLC Processing
The powerful CPU supports complex automation logic and high-speed data handling.

Scalable Automation Architecture
Compatible with a wide range of I/O modules and communication interfaces for system expansion.

Compact Industrial Design
DIN-rail mounting structure allows convenient installation in industrial control cabinets.

Stable and Reliable Operation
Designed to operate continuously in demanding industrial environments.

Technical FAQs

1. What is the primary function of the ABB PM591-2ETH module?
It acts as the central PLC CPU responsible for executing control programs and managing system communication.

2. How many Ethernet interfaces are included in this module?
The PM591-2ETH features two Ethernet ports for flexible network communication.

3. Which PLC system uses this CPU module?
It belongs to the ABB AC500 PLC automation platform.

4. What power supply does the controller require?
The module operates with a 24 V DC industrial power supply.

5. Can the PM591-2ETH connect to distributed I/O systems?
Yes, it supports connection to various local and remote I/O modules.

6. Does the controller support industrial programming standards?
Yes, it supports IEC 61131-3 programming languages used in PLC development.

7. What type of installation is required?
The module is designed for DIN rail installation inside automation cabinets.

8. Is this controller suitable for complex automation systems?
Yes, it is designed for medium to large automation projects requiring advanced control performance.

9. Can the module communicate with SCADA systems?
Yes, the Ethernet interface enables integration with SCADA and monitoring platforms.

10. Why choose the PM591-2ETH for automation projects?
Because it provides reliable PLC performance, flexible networking, scalable architecture, and industrial-grade durability.

Look forward to your comments!Comment