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SIEMENS SIMATIC S7-1200 6ES7231-4HA30-0XB0 SB 1231 Analog Input Signal Board | Original New

SIEMENS SIMATIC S7-1200 6ES7231-4HA30-0XB0 SB 1231 Analog Input Signal Board | Original New

SIEMENS · SIMATIC S7-1200 6ES7231-4HA30-0XB0 SB 1231 Analog Input Signal Board	Analog input 1 AI 12-bit resolution
Voltage: ±10 V DC · Current: 0 to 20 mA · Form: CPU signal board
Order check: Confirm the host S7-1200 CPU, signal range and engineering configuration. Email Inquiry WhatsApp [email protected] \| +86 18159889985

Overview
Applications
Technical Data
Interfaces
Environment
Setup Check
Availability
FAQ
Related Models
Recommended Products

Official product overview

SB 1231 single-channel analog input

Article 6ES7231-4HA30-0XB0 is a SIMATIC S7-1200 SB 1231 analog input signal board. Siemens specifies one analog input for either ±10 V DC with 12-bit resolution or 0 to 20 mA.

Lifecycle note: Siemens lists this product as active, with product phase-out scheduled from 01.11.2026. Confirm current status before quotation.

Applications

System role

Add one analog input to an S7-1200 CPU

Measure one ±10 V DC signal.
Measure one 0 to 20 mA current signal.
Expand a compatible S7-1200 CPU without a separate signal module footprint.
Configure the selected input range in the S7-1200 project.

Selection note: Verify that the exact CPU supports this signal board and that the project uses the correct electrical range.

Technical Data

Siemens data sheet

Key technical values

Use the exact article number and the official Siemens data sheet when validating a project.

Product type	SB 1231 analog input signal board
Channels	1 analog input
Voltage range	±10 V DC
Current range	0 to 20 mA
Resolution	12 bit for the stated voltage range
Net weight	0.029 kg
Packaging dimensions	5.20 × 8.00 × 2.90 cm
Lifecycle	Active; phase-out scheduled from 01.11.2026

Interfaces

Construction

Signal board for a compatible S7-1200 CPU

The SB 1231 installs in the signal-board position of a compatible SIMATIC S7-1200 CPU. It provides one analog input, configured for the required voltage or current range in the engineering project.

Interface check: Confirm CPU compatibility, terminal assignment, shield and grounding practice, and the selected voltage or current mode.

Environment

Protection and environment

Installation conditions

Apply the limits and approvals stated for the exact Siemens article.

Input modes	±10 V DC or 0 to 20 mA
Resolution	12 bit for voltage mode stated by Siemens
RoHS	Compliant since 19.03.2014
Product status	Active product
Phase-out date	Scheduled from 01.11.2026

Engineering note: Follow the S7-1200 system manual for wiring, shielding, permissible conditions and analog-signal installation.

Setup Check

Before order

Verification checklist

Exact MLFB: 6ES7231-4HA30-0XB0	Compatible S7-1200 CPU type
Voltage or current input mode	Sensor and transmitter wiring
Shield and grounding method	TIA Portal project configuration

Send the CPU article number, signal type, measurement range and existing wiring information for verification.

Availability

Written confirmation

Commercial information before payment

Every commercial commitment is confirmed against the exact article and quoted unit.

Stock status	Confirm before quotation for the exact article number and requested quantity.
Condition	New, used or refurbished status is stated in the written quotation.
Photos / nameplate	Current unit and nameplate photos are available on request.
Test statement	Available on request and subject to the agreed test scope.
Warranty	Confirmed in the formal quotation.
Dispatch	Confirmed after stock, destination and order approval are verified.
Payment	Supported methods are listed in the formal quotation.
Quote response	Subject to verification and request completeness.
Transaction trust	Seller details, quotation, invoice and payment instructions are available for review before payment.
Product status	Siemens lists the article as active with phase-out scheduled from 01.11.2026.

FAQ

Common questions

Compatibility and quotation

Can it read both voltage and current?The board supports the stated ±10 V DC or 0 to 20 mA range; the selected mode must match the field signal.

Does it add multiple channels?No. Siemens specifies one analog input for this exact signal board.

What is needed for a compatibility check?Provide the host CPU article, project version, sensor signal type and wiring details.

Related Models

Related Siemens products

Recommended Models

Confirm the function, host system and engineering requirements before selecting another article number.

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6ES7232-4HA30-0XB0	6ES7232-4HB32-0XB0
6ES7234-4HE32-0XB0	6ES7238-5XA32-0XB0
6ES7221-1BF32-0XB0	6ES7222-1BF32-0XB0
6ES7223-1PH32-0XB0	6ES7290-6AA30-0XA0