Core Technical Specifications
This communication processor offloads serial data handling from your main CPU for improved performance. We engineered the 6ES5544-3UA11 to manage complex protocol conversion and device communication tasks independently.
| Parameter | Specification |
|---|---|
| Product Type | Communication Processor Module |
| Dimensions | 250 mm x 25 mm x 210 mm (W x H x D) |
| Weight | 0.50 kg |
| Supply Voltage | 24 V DC nominal |
| Power Consumption | 5.5 W typical |
| Communication Ports | 2 x RS-232 (9-pin D-Sub) and 1 x RS-485 (15-pin D-Sub) |
| Protocol Support | RK512, 3964(R), or user-programmable ASCII |
| Transmission Speed | 19.2 kbps maximum |
| On-Board Memory | 64 KB RAM for user programs and buffers |
| Program Storage | 32 KB EPROM (for permanent protocol storage) |
| User Program Capacity | Up to 512 function blocks |
| Data Buffer | 8 KB transmit and 8 KB receive (FIFO) |
| Interrupt Capability | Configurable event-driven CPU interrupts |
| Isolation | 500 V AC (between ports and logic) |
| Operating Temp. | 0 °C to 60 °C |
| Mounting | DIN-rail or rack-mounted |
| Certifications | CE, UL, and CSA approved |
Independent Protocol Processing
The 6ES5544-3UA11 handles all communication tasks without burdening the main PLC processor. This module manages RK512, 3964(R), and user-defined ASCII protocols for flexible device integration. The onboard processor executes these protocols independently, ensuring predictable cycle times for control applications. Consequently, you can add multiple serial devices without affecting system scan performance.
Flexible Connectivity Options
This communication processor provides three versatile interfaces for diverse peripheral connections. The two RS-232 ports connect to programming terminals, printers, and operator panels. The RS-485 port enables multi-drop networking with up to 32 devices on a single bus. This comprehensive interface suite supports baud rates up to 19.2 kbps. Therefore, the 6ES5544-3UA11 accommodates both modern and legacy field equipment.
Substantial On-Board Memory Resources
The module integrates 64 KB of RAM for user-defined communication programs and data buffers. A dedicated 32 KB EPROM stores permanent protocol handlers securely. The 8 KB transmit and 8 KB receive FIFO buffers manage data flows efficiently. These ample memory resources allow sophisticated message handling and data logging operations. In addition, the module supports up to 512 user-defined function blocks for complex sequencing.
Intelligent Interrupt Handling
The 6ES5544-3UA11 can trigger CPU interrupts upon receiving specific messages or detecting communication events. This capability enables time-critical responses without constant CPU polling. You can configure these interrupts to prioritize urgent data, such as alarm conditions or emergency stop signals. This event-driven architecture improves overall system responsiveness and reduces processing overhead.
Robust Electrical Isolation and Construction
This communication processor provides 500 V AC isolation between all communication ports and the backplane logic. This isolation prevents electrical noise and voltage transients from affecting the main control system. The module’s 25 mm width fits standard S5 racks, while its 0.50 kg weight ensures stable installation. You can mount this processor alongside other I/O modules for a cohesive and organized cabinet layout.
Details
| Weight | 0.5 kg |
|---|---|
| Dimensions | 250 × 25 × 210 mm |
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