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Siemens 321-1BL00-0AA0

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321-1BL00-0AA0

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Marvo Stock ID MV-74C1
HS Code 85389091
SKU 321-1BL00-0AA0
Condition Used
Warranty 12 months
Weight (kg) 0.26
Length (mm) 120.00
Width (mm) 40.00
Height (mm) 125.00

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Specification & Description

Specification Description
Part Number 321-1BL00-0AA0
Manufacturer Siemens
Rated Load Voltage L+ (DC) 24 V
Permissible Voltage Range Lower limit: 20.4 V, Upper limit: 28.8 V
Input Current from Backplane Bus Max. 15 mA
Power Loss Typical: 6.5 W
Number of Digital Inputs 32
Input Characteristic Curve In accordance with IEC 61131, type 1
Simultaneously Controllable Inputs (Horizontal Installation) Up to 40 °C: max. 32, Up to 60 °C: max. 16
Simultaneously Controllable Inputs (Vertical Installation) Up to 40 °C: max. 32
Input Voltage for Signal "1" 13 to 30 V
Input Voltage for Signal "0" -30 to +5 V
Input Current for Signal "1" Typical: 7 mA
Input Delay for Rated Input Voltage At "0" to "1": min. 1.2 ms, max. 4.8 ms, At "1" to "0": min. 1.2 ms, max. 4.8 ms
Cable Length (Shielded) Max. 1000 m
Cable Length (Unshielded) Max. 600 m
Connectable Encoders 2-wire sensor: Yes, Permissible quiescent current: max. 1.5 mA
Diagnostic Functions No
Status Indicator LED Digital input (green): Yes
Potential Separation Between the channels: No, Between the channels in groups of 16, Between the channels and backplane bus: Yes; Optocoupler
Isolation Tested with 500 V DC
Required Front Connector 40-pin
Dimensions (Width x Height x Depth) 40 mm x 125 mm x 120 mm
Weight Approx. 260 g

The Siemens 321-1BL00-0AA0 is a high-performance digital input module designed for the SIMATIC S7-300 series. This module is engineered to provide a reliable interface for capturing digital signals from a variety of input devices such as sensors, switches, and encoders in industrial automation environments.

Featuring 32 optically isolated digital inputs, the module ensures robust signal integrity by preventing electrical interference between the inputs and the system. The inputs are compatible with a 24 V DC supply voltage, accommodating a range of industrial control applications. The module's ability to handle up to 32 inputs simultaneously at temperatures up to 40°C, and 16 inputs at temperatures up to 60°C, makes it versatile for different operating conditions.

The 321-1BL00-0AA0 is designed with a compact form factor, measuring 40 mm in width, 125 mm in height, and 120 mm in depth, allowing for efficient use of space within control cabinets. The module's input delay is minimised, with a response time ranging from 1.2 ms to 4.8 ms, ensuring timely and accurate signal processing.

For applications requiring long-distance signal transmission, the module supports cable lengths up to 1000 m for shielded cables and 600 m for unshielded cables, providing flexibility in system design. Additionally, the module is equipped with a green LED status indicator for each digital input, offering immediate visual feedback on the operational status.

The Siemens 321-1BL00-0AA0 is a robust and reliable solution for digital signal input processing, making it an essential component for industrial automation systems requiring high accuracy and dependability.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

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What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

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Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

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Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Frequently Asked Questions

What type of module is this?

This is a digital input module from the SIMATIC S7-300 series, designed for use in industrial automation systems.

How many digital inputs does the module have?

The module features 32 optically isolated digital inputs.

What is the rated input voltage for the digital inputs?

The rated input voltage for the digital inputs is 24 V DC.

Can this module be used with 2-wire sensors?

Yes, the module can be connected to 2-wire sensors, with a permissible quiescent current of up to 1.5 mA.

Is there any potential separation between the channels?

There is no potential separation between the individual channels, but there is potential separation between the channels in groups of 16 and between the channels and the backplane bus via optocouplers.

What is the maximum cable length for connecting inputs?

The maximum cable length for shielded cables is 1000 metres, and for unshielded cables, it is 600 metres.

Does the module have any diagnostic functions?

No, the module does not have diagnostic functions, but it does have a green LED status indicator for each digital input.

What is the typical power loss for this module?

The typical power loss for the module is approximately 6.5 W.

What are the dimensions of the module?

The module has dimensions of 40 mm in width, 125 mm in height, and 120 mm in depth.

Is the module equipped with any form of short-circuit protection?

Yes, the module includes electronic short-circuit protection for the outputs.

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Part conditions explained

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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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