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Siemens 6ES7551-1AB01-0AB0 Programmable Logic Controller
The Siemens 6ES7551-1AB01-0AB0 Programmable Logic Controller operates at a 24 V DC rated voltage and provides 4 digital inputs with 5V and 24V encoder supplies for precision signal processing. It features short-circuit protection, a maximum current consumption of 75 mA, and a typical power loss of 5.5 W. Designed for reliability and performance, this module from Siemens under the Siemens PLC category belongs to the SIMATIC S7-1500 Series used in industrial automation.
| Brand | Siemens |
| Product Type | Programmable Logic Controller (PLC) |
| Product | 6ES7551-1AB01-0AB0 |
Siemens 6ES7551-1AB01-0AB0 Programmable Logic Controller – Technical Specifications
| Specification | Value |
|---|---|
| Product Description | SIMATIC S7-1500, TM PosInput 2 counter and position detection module for RS-422 incremental encoder or SSI absolute encoder, 2 channels, 2 DI, 2 DQ per channel |
| Product family | TM PosInput 2 counter and position detection module |
| Product Lifecycle (PLM) | PM300:Active Product |
| Net Weight (kg) | 0,419 Kg |
| Packaging Dimension | 16,10 x 19,40 x 4,70 |
| Package size unit of measure | CM |
| Country of origin | Germany |
The Siemens 6ES7551-1AB01-0AB0 Programmable Logic Controller is an input module designed for precise encoder and signal handling in automation systems. It supports 4 digital inputs with individual 5V and 24V encoder outputs, each protected against short circuits. Operating within a voltage range of 19.2–28.8 V DC, it delivers efficient current processing with a power consumption of 1.3 W from the backplane bus, forming a reliable part of the SIMATIC S7-1500 Series.
This module is ideal for industrial automation, motion control, and process synchronization. It offers programmable digital input functions like gate start/stop, capture, and synchronization for accurate signal management. With support for shielded cables up to 1,000 m and reverse polarity protection, it ensures stable operation in demanding automation and assembly applications.
In summary, the Siemens 6ES7551-1AB01-0AB0 PLC from the SIMATIC S7-1500 Series ensures dependable encoder interfacing and fast signal transmission. With 4 digital inputs, 24V DC operation, and dual 5V/24V encoder outputs, it delivers the precision and durability Siemens products are known for. Trusted across industries, this model integrates seamlessly into complex control systems for long-term reliability.
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