

The ABB CM579-PNIO is a dedicated communication module designed for the AC500 distributed automation platform, serving as a PROFINET IO RT controller. This compact yet powerful module provides real-time Ethernet connectivity for demanding industrial applications, supporting both PROFINET IO and PROFIsafe protocols. With two integrated Industrial Ethernet ports and a data transmission rate of 100 Mbit/s, the CM579-PNIO ensures high-speed, deterministic data exchange between controllers, drives, and I/O devices. Its slim IP20 enclosure (28 x 135 x 62 mm) and lightweight construction (0.1 kg) make it ideal for space-constrained control cabinets. The module is fully compatible with standard AC500 CPUs and is used in advanced training kits and safety-oriented setups. Below are the detailed technical specifications:
| Specification | Details |
|---|---|
| Product Type | Communication Module – PROFINET IO RT Controller |
| Model | CM579-PNIO |
| Function | PROFINET IO RT controller, PROFIsafe capable |
| Communication Protocol | PROFINET IO, PROFIsafe |
| Communication Interface | Serial (Industrial Ethernet) |
| Number of Hardware Interfaces | 2 x Industrial Ethernet; 0 x RS-232, RS-422, RS-485, USB, Wireless, Parallel, Serial TTY |
| Data Transmission Rate | 100 Mbit/s (100000 kbit/s) |
| Degree of Protection | IP20 |
| Product Net Weight | 0.1 kg |
| Product Net Depth / Length | 62 mm |
| Product Net Height | 135 mm |
| Product Net Width | 28 mm |
| Gross Weight (packaged) | 0.133 kg |
| Package Level 1 Dimensions (L x W x H) | 147 mm x 78 mm x 40 mm |
| Package Level 1 Units | 1 carton |
| Minimum Order Quantity | 1 piece |
| Order Multiple | 1 piece |
| Selling Unit of Measure | piece |
| Made To Order | No |
| eClass | 27-24-22-08 |
| ETIM 8 | EC001423 – PLC communication module |
| UNSPSC | 32151705 |
| SCIP | d9ad0575-0454-48ec-803e-5210ec8c3695 (Germany) |
| WEEE B2C / B2B | Business To Business |
| WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |

What Does Our Clients Say
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Great product!
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Original and fast!
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