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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 6ES7421-7DH00-0AB0 |
| Alternative Part Number | 6ES74217DH000AB0 |
| Manufacturer | Siemens |
| Category | PLC Systems |
| Family | Simatic S7 |
| Description | The Siemens SIMATIC S7-400 Series Digital Input Module is a high-performance system with a compact design. It operates at a backplane current of 150 mA and a voltage of 24 V dc. The module measures 25 x 290 x 210 mm, making it suitable for various industrial applications. |
| Number of Digital Inputs | 16 |
| Input Voltage | AC/DC, Rated value (UC) 24 V; 24 V UC to 60 V UC (47 ... 63 Hz) |
| Input Current | For signal "1", typ. 4 mA; 4 to 10 mA |
| Input Delay | Parameterizable, Rated value 0.5 ms; 0.5 / 3 / 10 / 20 ms |
| Cable Length | Shielded, max. 1 000 m; Unshielded, max. 600 m |
| Encoder Connection | Connectable encoders, 2-wire sensor Yes |
| Diagnostics Function | Yes; Parameterizable |
| Alarms | Diagnostic alarm Yes; Parameterizable, Hardware interrupt Yes; Parameterizable |
| Dimensions | Width 25 mm, Height 290 mm, Depth 210 mm |
| Weight | Approx. 600 g |
| Commodity Code | 85389091 |
The Siemens 6ES7421-7DH00-0AB0 is a high-performance digital input module from the renowned SIMATIC S7-400 series. This module is designed to provide reliable and efficient operation in a wide range of industrial automation applications. It features 16 digital inputs, allowing for comprehensive control and monitoring of various processes. The module operates with a rated value of 24V DC to 60V DC, making it versatile for different power requirements.
One of the key features of this module is its potential separation between the channels and the backplane bus, ensuring safe and secure operation. It also offers diagnostic functions that are parameterizable, providing valuable insights into the system's performance. The module is compact with dimensions of 25 x 290 x 210 mm, making it easy to integrate into existing systems.
The Siemens 6ES7421-7DH00-0AB0 digital input module is a robust and reliable solution for your automation needs, offering the quality and performance that you expect from Siemens.
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Frequently Asked Questions
What is the category of this part?
This part belongs to the PLC Systems category.
What is the family of this part?
This part is from the Simatic S7 family.
What is the description of this part?
This is a Siemens SIMATIC S7-400 Series Digital Input Module, with 150 mA (Backplane), 24 V dc, and dimensions of 25 x 290 x 210 mm.
What is the short description of this part?
The short description of this part is SIMATIC S7-400, digital input SM 421.
What is the Commodity Code of this part?
The Commodity Code of this part is 85389091.
What are the dimensions of this part?
The dimensions of this part are 25 mm in width, 290 mm in height, and 210 mm in depth.
What is the weight of this part?
The approximate weight of this part is 600 g.
What is the input current from the backplane bus 5 V DC, max. of this part?
The maximum input current from the backplane bus 5 V DC of this part is 150 mA.
What is the power loss of this part?
The typical power loss of this part is 8 W; 3.5 W (24 V DC); 6.5 W (48 V DC); 8.0 W (60 V DC).
How many digital inputs does this part have?
This part has 16 digital inputs.
What is the type of input voltage of this part?
The type of input voltage of this part is AC/DC.
What is the rated value (UC) of this part?
The rated value (UC) of this part is 24 V; 24 V UC to 60 V UC (47 ... 63 Hz).
What is the input delay (for rated value of input voltage) for standard inputs of this part?
The input delay (for rated value of input voltage) for standard inputs of this part is 0.5 ms; 0.5 / 3 / 10 / 20 ms.
What is the maximum cable length, shielded, of this part?
The maximum cable length, shielded, of this part is 1000 m.
What is the maximum cable length, unshielded, of this part?
The maximum cable length, unshielded, of this part is 600 m.
Can this part connect to a 2-wire sensor?
Yes, this part can connect to a 2-wire sensor.
Does this part have a diagnostics function?
Yes, this part has a diagnostics function that is parameterizable.
Does this part have a diagnostic alarm?
Yes, this part has a diagnostic alarm that is parameterizable.
Does this part have a hardware interrupt?
Yes, this part has a hardware interrupt that is parameterizable.
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