Siemens 6ES7321-1BH02-0AA0 Digital Input Module
$209.00
$530.00
Description
Product Description
The 6ES7321-1BH02-0AA0 is a high-performance digital input module developed by Siemens AG for the SIMATIC S7-300 PLC series. Designed to provide 16 individual channels for 24 V DC signals, this module allows reliable connection of field devices such as sensors, pushbuttons, and limit switches to the PLC for processing.
Engineered for industrial environments, the DI 16 × DC 24 V module features optically isolated inputs that prevent electrical interference, ensuring accurate signal acquisition. Its configurable input delay provides filtering for stable readings, while the compact design allows seamless integration into S7-300 racks.
Technical Specifications
| Attribute | Specification |
|---|---|
| Model | 6ES7321-1BH02-0AA0 |
| Module Type | Digital Input Module DI 16 × DC 24 V |
| System Compatibility | SIMATIC S7-300 PLC Series |
| Number of Inputs | 16 Channels |
| Input Voltage | 24 V DC |
| Input Current | ~7 mA per channel |
| Input Delay | 0.2–1.2 ms (configurable filtering) |
| Isolation | Optical isolation between inputs and backplane |
| Signal Type | Binary ON/OFF |
| Connection Method | Front connector (40-pin, screw or spring type) |
| Power Consumption | ~1 W |
| Dimensions | 125 × 40 × 120 mm |
| Weight | 0.2 kg |
| Mounting | Plug-in module for S7-300 rack |
| Protection Rating | IP20 |
| Operating Temperature | 0…60 °C |
| Storage Temperature | -40…70 °C |
| Relative Humidity | 5…95% non-condensing |
Key Features
-
Compact Module: 16 discrete digital inputs in a single module footprint.
-
Reliable Signal Acquisition: Optically isolated channels prevent noise interference.
-
Configurable Filtering: Adjustable input delay for stable signal detection.
-
Flexible Wiring: Compatible with screw-type or spring-type front connectors.
-
Seamless Integration: Fits directly into S7-300 PLC racks for immediate deployment.
Application Scenarios
The 6ES7321-1BH02-0AA0 is suitable for:
-
Factory automation lines requiring multiple 24 V DC sensor inputs
-
Process control systems with digital input acquisition needs
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Automation setups where precise signal isolation and reliability are critical
FAQ
Q: Can this module be used with 32-channel inputs?
A: For higher input density, Siemens offers 32-channel DI modules in the S7-300 series.
Q: What connector types are supported?
A: Both screw-type and spring-type front connectors (6ES7193 series) are compatible.
Q: Is it suitable for harsh industrial environments?
A: Yes, the module is IP20 rated with robust industrial-grade components for reliable operation.
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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