Maintenance teams planning replacements for 6ES7521-1BL00-0AB0 frequently review Schneider PLC, Siemens HMI and 6Es7 215 1Ag40 0Xb0 to prevent downtime, checking availability and compatibility with existing systems.
Siemens 6ES7521-1BL00-0AB0 Programmable Logic Controller
6ES7521-1BL00-0AB0 - Siemens PLC
| Brand | Siemens |
| Product Type | Programmable Logic Controller |
| Product | 6ES7521-1BL00-0AB0 |
Siemens 6ES7521-1BL00-0AB0 Programmable Logic Controller - Technical Specifications
| Specification | Value |
|---|---|
| Product Description | SIMATIC S7-1500, digital input module DI 32x24 V DC HF, 32 channels in groups of 16; of which 2 inputs as counters can be used; input delay 0.05..20 ms input type 3 (IEC 61131); diagnostics; hardware interrupts: front connector (screw terminals or push-in) to be ordered separately |
| Product family | SM 521 digital input modules |
| Product Lifecycle (PLM) | PM300:Active Product |
| PLM Effective Date | 219 / 219 |
| Region Specific PriceGroup / Headquarter Price Group | Show prices |
| Metal Factor | AL : N / ECCN : N |
| Net Weight (kg) | 15,10 x 15,10 x 4,70 |
| Packaging Dimension | CM |
| Package size unit of measure | 1 Piece |
The Siemens 6ES7521-1BL00-0AB0 is a high-performance PLC (Programmable Logic Controller) module from the Siemens SIMATIC S7-1500 series. Designed for industrial automation, it provides fast digital input processing and reliable connectivity, making it a trusted choice for engineers, OEMs, and system integrators.
The 6ES7521-1BL00-0AB0 belongs to the SM 521 digital input module family and offers 32 digital input channels (24 V DC) grouped in sets of 16. Two of these channels can also function as counters, with an input delay range adjustable between 0.05 to 20 ms, ensuring precise signal capture in high-speed automation. Built to IEC 61131 standards, the module supports advanced diagnostics and hardware interrupts, providing engineers with greater control and fault detection. With its compact design measuring 15.10 Γ 15.10 Γ 4.70 cm, the module integrates seamlessly into SIMATIC S7-1500 control systems, saving panel space without compromising performance.
Classified under PM300: Active Product Lifecycle, the Siemens 6ES7521-1BL00-0AB0 PLC ensures long-term availability, firmware updates, and Siemens global service support. Its compatibility with screw or push-in front connectors makes installation flexible and maintenance efficient. Trusted across industries such as manufacturing, process automation, and logistics, this module is engineered for durability, compliance, and scalability. Built with Siemensβ reputation for quality, the 6ES7521-1BL00-0AB0 is a proven solution for reliable digital input control in modern automation systems.
Related Products
