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- Siemens
- Siemens Simatic S7
- S7-300
- 6ES7321-1BL00-0AA0
6ES7321-1BL00-0AA0
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Product Information
Product Describe
SIMATIC S7-300
Digital input SM 321
Isolated 32 DI
24 V DC
1x 40-pole
Digital input SM 321
Isolated 32 DI
24 V DC
1x 40-pole
Technical specifications for 6ES7321-1BL00-0AA0
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Product Model6ES7321-1BL00-0AA0
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Product ParametersDigital Input Module
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Tariff Code8537101190
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Country of originGermany
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Place of shipmentXiamen, China
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Estimated Shipping Size4x11.6x12.4cm
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ManufacturerSiemens
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Weight0.25 kg
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Rated value (DC)24 V
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permissible range, lower limit (DC)20.4 V
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permissible range, upper limit (DC)28.8 V
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from backplane bus5 V DC, max. 15 mA
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Power loss, typ.6.5 W
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Number of digital inputs32
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Type of input voltageDC
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Rated value (DC)24 V
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for signal \-30 to +5 V
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for signal \13 to 30V
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Isolation tested with500 V DC
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Factory New
These are new and current items that are procured from the manufacturer. -
New No Package
These parts are new. They have not been used, but their original packaging is no longer available. -
New In Opened Package
These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged. -
New In Sealed Package
Parts are new. They have not been used and still have their original package seal intact. -
New in Original Package
These parts are new. The packages were not originally sealed by their original manufacturer.
Warranty Period & Disclaimer
Amikon is not an authorized distributor unless otherwise specified, representative, or affiliate of the manufacturer of this product. All trademarks and documents are the property of their respective owners and are provided for identification and informational.
FAQs
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What is the product type?+The module is a Siemens SIMATIC S7-300, SM 321 digital input module with 32 inputs.
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What is it used for?+It is used to record digital input signals from switches and proximity sensors (2-, 3-, or 4-wire) in an industrial automation environment.
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Is the module isolated?+Yes, the inputs are optically isolated in groups of 16 channels to protect against electrical faults and interference.
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What is the 6ES7321-1BL00-0AA0?+It is a Digital Input module (SM 321) for the Siemens S7-300 PLC system, featuring 32 inputs (24V DC)
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What is the input delay?+It has an input delay for "0" to "1" and "1" to "0" transitions ranging from 1.2 ms to 4.8 ms.
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Product
MORE INFORMATION
Overview
Manuals
Technical notes
Product Applications
Wiring & Terminal Assignment
Features:
- SIMATIC S7-300
- Digital input SM 321
- Isolated 32 DI, 24 V DC, 1x 40-pole
The 6ES7321-1BL00-0AA0 SIEMENS Digital Input Module may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
SIEMENS 6ES7321-1BL00-0AA0 Digital Input Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Engineered for industrial environments, the module supports a high-speed response time, making it suitable for applications that require precise and timely input detection. The inputs are electrically isolated, offering protection against voltage spikes and ensuring signal integrity. Its compact design allows easy integration into standard S7-300 racks, while the LED indicators provide clear, real-time status of each input channel.
- Manufacturing Automation:Monitors machinery, proximity switches & sensors on production lines
- Process Control:High-density signal inputs for chemical & food/beverage industries
- Material Handling and Logistics:Detects positions, counts & manages conveyor/sorter inputs
- Packaging Machinery:Positioning & product detection sensors for high-speed packaging
- Industrial Machine Control:Interfaces with switches, pushbuttons & encoders
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
This module uses a 40-pin front connector to manage its 32 digital inputs. The inputs are isolated in two groups of 16, each requiring its own common ground (M).
The module is designed for 24 V DC signals and is compatible with:
Standard mechanical switches.
2-wire, 3-wire, and 4-wire proximity switches (BEROs).
Note: For 2-wire sensors, ensure the quiescent current is compatible with the module's input thresholds.
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