High-speed event capture
Supports fast digital transitions when configured for the documented technological function.
Siemens 6ES7221-3AD30-0XB0 SIMATIC S7-1200 SB 1221 Digital Input Board
Item NO.: 3814074
Warranty: 1 year
Condition : brand new in factory sealed box
Email: sales@mvme.cn
Chat online: +86 18030175807
Detail
- Product NameSiemens 6ES7221-3AD30-0XB0 SIMATIC S7-1200 SB 1221 Digital Input Board
- Item NO.3814074
- Weight1.0000 kg = 2.2046 lb = 35.2740 oz
- CategoryPLC
- BrandSiemens
- Creation Time2026-10-29
SIMATIC S7-1200SB 1221 4-Channel 5 V DC Digital Input Board
4 DI · 5 V DC · 200 kHz SOURCING INPUT
Siemens 6ES7221-3AD30-0XB0 SIMATIC S7-1200 SB 1221 Digital Input Board
A four-point, high-speed 5 V DC sourcing-input signal board installed directly on an S7-1200 CPU.
PRODUCT CONTEXT
Product Profile
6ES7221-3AD30-0XB0 is the 5 V DC high-speed SB 1221 signal board for SIMATIC S7-1200. It provides four current-sourcing digital inputs as one group for fast pulse or status acquisition.
The board must be matched to the field sensor’s electrical form, reference potential, pulse frequency and cable shielding. It is not the 24 V DC SB 1221 execution and should not be selected from the shared enclosure alone.
CONTROLLED DATA
Technical Data
Manufacturer
Siemens
Exact model
6ES7221-3AD30-0XB0
Product designation
SB 1221, DI 4x5 V DC 200 kHz
Digital inputs
4 current-sourcing points
Rated input voltage
5 V DC
Input grouping
1 group of 4
Backplane current at 5 V DC
40 mA typical
Power loss
1 W typical
Input delay
Parameterizable
Shielded cable length
50 m maximum
Status indication
Input LEDs
OPERATING ROLE
System Role
01High-speed event capture02Sourcing-input topology03CPU-front expansion04Adjustable filtering
Sourcing-input topology
Uses the specified current-source signal relationship rather than the 24 V input form.
CPU-front expansion
Adds four inputs without occupying a separate signal-module position.
Adjustable filtering
Parameterizable input delay helps align response with the connected signal source.
INDUSTRIAL SOURCING SUPPORT
About IndustryParts
https://www.industryparts.com/Exact records support a cleaner quotation
IndustryParts prepares 6ES7221-3AD30-0XB0 enquiries around the complete manufacturer label, requested quantity and installed-system evidence. Share the application record that distinguishes this execution before a supply proposal is prepared.
Complete label retainedHost context reviewedQuantity linked to the enquiry
SELECTION BOUNDARY
Compatibility
6ES7221-3AD30-0XB0
Confirm the 5 V sourcing circuit at the sensor and CPU before approving 6ES7221-3AD30-0XB0 as a spare.
SIMATIC S7-1200
Retain the installed host, project and connection evidence that defines the approved use of this execution.
Verified field fit
Complete the model-specific checks described in the service sequence before return to operation.
FIELD USE
Applications
Fast pulse acquisition
Reading compatible 5 V pulse sources in a compact S7-1200 installation.
Machine-state capture
Adding four documented input points at the CPU front.
Controlled input-board exchange
Preserving polarity, filter settings and channel assignments during service.
RecordCapture CPU and board labels, sensor output type, reference potential, filter and channel use.WireDe-energize the field circuit and reproduce the approved 5 V sourcing-input arrangement.TestExercise every input, verify pulse capture where used and confirm clean CPU diagnostics.
CUSTOMER QUESTIONS
FAQ
Q01
What information should accompany a 6ES7221-3AD30-0XB0 request?
Provide the CPU article number, full board label, sensor electrical output, pulse frequency, filter settings and quantity.
Q02
Can the 24 V SB 1221 be substituted for 6ES7221-3AD30-0XB0?
No automatic substitution is valid because the input-voltage and circuit forms differ even though the boards share a family name.
Q03
Why should the input filter be recorded for 6ES7221-3AD30-0XB0?
Changing the delay can alter whether short pulses are detected or rejected, affecting the machine sequence without a wiring change.
Q04
What field evidence matters before moving 6ES7221-3AD30-0XB0?
Retain channel assignments, sensor supply, common reference, shield termination and any technology-object mapping.
Q05
What proves 6ES7221-3AD30-0XB0 is accepted after service?
Verify each static input, the required high-speed pulse path, filter behavior and the expected program response.
ENQUIRY INFORMATION
Request a model-specific quotation
Send the complete 6ES7221-3AD30-0XB0 label, requested quantity and delivery destination.
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