Siemens 6ES7421-1BL01-0AA0 Digital Input Module
$209.00
$530.00
Description
Product Description
The Siemens 6ES7421-1BL01-0AA0 is a 32-channel digital input module from the S7‑400 series, engineered to capture binary signals from sensors, switches, and field devices in large-scale automation systems. This DI module provides compact, high-density input acquisition, ideal for systems with limited cabinet space.
Designed with galvanic isolation between channels and the backplane bus, the 6ES7421-1BL01-0AA0 protects the PLC from electrical interference while ensuring accurate signal capture. Integrated LED indicators display channel status and fault conditions, simplifying diagnostics and maintenance. The module occupies 4 bytes of address space, allowing efficient mapping of all 32 inputs.
Robust and compact, this module supports industrial environments, providing reliable and consistent digital signal processing for medium-to-large automation projects.
Technical Specifications
| Attribute | Details |
|---|---|
| Brand | Siemens |
| Model | 6ES7421-1BL01-0AA0 |
| System | SIMATIC S7‑400 PLC |
| Product Type | Digital Input Module |
| Channels | 32 digital inputs |
| Rated Input Voltage | 24 V DC |
| Input Current | ~7 mA per channel |
| Signal Type | Binary (0/1) acquisition from sensors and switches |
| Isolation | Galvanic isolation between channels and backplane bus |
| Diagnostics | LED indicators for channel status and fault detection |
| Address Space | 4 bytes (32 bits) per module |
| Dimensions | 290 × 25 × 210 mm |
| Weight | 0.5 kg |
| Protection Rating | IP20 |
Key Features
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32 input channels for efficient signal acquisition.
-
Compact design reduces cabinet space requirements.
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Galvanic isolation for safe and reliable operation.
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LED diagnostics for fast troubleshooting.
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Supports distributed inputs across S7‑400 systems.
Applications
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Factory Automation: Monitoring sensors and switches across production lines.
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Process Control: Acquiring binary signals in chemical plants, refineries, and continuous production systems.
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Energy Systems: Input acquisition for turbine and generator monitoring.
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Infrastructure: Distributed input monitoring for building automation and transportation systems.
FAQ
Q: How many channels does the 6ES7421-1BL01-0AA0 provide?
A: It offers 32 digital input channels.
Q: Can this module operate safely in industrial environments?
A: Yes, it features galvanic isolation and LED diagnostics to ensure reliable operation.
Q: What type of signals does it accept?
A: Binary 24 V DC signals from sensors, switches, and other field devices.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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