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Siemens SIMATIC S7-1200 6ES7221-3BD30-0XB0 SIMATIC S7-1200 SB 1221 Digital Input Signal Board

Siemens SIMATIC S7-1200 6ES7221-3BD30-0XB0 SIMATIC S7-1200 SB 1221 Digital Input Signal Board

6ES7221-3BD30-0XB0

SB 1221 Digital Input Signal Board
424 V DC200 kHz

Selection note: Confirm system compatibility and required accessories before quotation.

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Overview
Specs
Interfaces
Environment
Selection
Checklist
Availability
FAQ
Models
Recommended Products

Product Overview

Siemens SIMATIC S7-1200 6ES7221-3BD30-0XB0 is an SB 1221 digital input signal board. Official Siemens data identifies 4 digital inputs, 24 V DC and up to 200 kHz input capability.

Functions or Applications
Compact high-speed digital signal acquisition in supported SIMATIC S7-1200 CPU configurations.

Specs

Technical Data

Digital inputs	4
Rated input voltage	24 V DC
Maximum input frequency	200 kHz
Input characteristic	Sourcing input
Product family	SB 1221

Interfaces

Interfaces or Construction

Mounting	Signal board in a supported CPU
Field wiring	Confirm official terminal assignment
Compatibility	CPU compatibility must be verified
Configuration	Configure channels in engineering software

Environment

Protection and Environment

Location	Inside compatible CPU assembly
Environment	Refer to official S7-1200 manual
Certification	Confirm required regional approval
Wiring protection	Follow Siemens 24 V DC rules

Selection

Installation or Selection

Confirm the exact S7-1200 CPU article number.
Verify sourcing-input compatibility.
Confirm required input frequency and filter.
Follow Siemens grounding instructions.
Check firmware and software compatibility.

Checklist

Verification Checklist

Verify article number 6ES7221-3BD30-0XB0.
Confirm CPU and firmware compatibility.
Confirm wiring and high-speed channels.
Request current unit and nameplate photographs.
Condition and test scope: Confirm before quotation.

Availability

Availability and Commercial Information

Actual stock	Confirm before quotation
Condition	Subject to verification
Current photos	Available on request
Testing	Available on request
Warranty	Confirm before quotation
Dispatch time	Confirm before quotation
Payment methods	Available on request
Quotation response	Confirm before quotation

Company registration and transaction-process documents can be supplied for buyer verification. Commercial terms are confirmed in the formal quotation.

FAQ

FAQ / Request Quote

Is this guaranteed to be in stock?
Actual stock must be confirmed before quotation.

Is the unit new, used or refurbished?
The offered condition is Subject to verification.

Can current photos be supplied?
Available on request.

Is it tested and covered by warranty?
Confirm before quotation.

How quickly can it ship?
Dispatch time and payment methods are Confirm before quotation.

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