# Siemens SIMATIC S7-1200 SB 1231 Analog Input Signal Board 6ES7231-4HA30-0XB0

**URL:** https://aio.lv/en/product--siemens-6es7231-4ha30-0xb0--1777542
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Server Parts & Components
**Manufacturer:** Siemens
**Manufacturer code:** 6ES7231-4HA30-0XB0
**EAN:** 6940408100909
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 103.49 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 85.53 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-6es7231-4ha30-0xb0--1777542

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

The Siemens SB 1231 signal board is a compact expansion module designed for the SIMATIC S7-1200 PLC series. It provides an additional analog input for precise signal processing in industrial automation systems. This module is easily mounted directly onto the CPU, offering a space-saving solution for extending the functionality of your controller in various control and monitoring applications.

## Long description

The Siemens SIMATIC S7-1200 SB 1231 Analog Input Signal Board is a specialized expansion module engineered to integrate seamlessly with the Siemens S7-1200 programmable logic controller series. This compact component allows for the direct addition of an analog input channel to the CPU, enabling the processing of precise analog signals within industrial automation environments. By mounting directly onto the front of the controller, it provides a highly efficient, space-saving method for expanding system capabilities without the need for additional rack space or complex wiring configurations.
Advantages
The primary benefit of this signal board is its ability to enhance the functionality of existing SIMATIC S7-1200 systems with minimal physical footprint. Its direct-mount design ensures a clean and organized control cabinet layout, reducing installation time and complexity. The module maintains the high standards of reliability and signal integrity expected from Siemens industrial components, ensuring consistent performance in demanding automation tasks. It offers a cost-effective way to upgrade or adapt controllers for specific monitoring requirements without replacing the entire CPU unit.
Suitable for
Industrial process monitoring and control
Integration of analog sensors such as temperature, pressure, or flow transmitters
Small-scale automation projects requiring precise signal acquisition
Space-constrained control panels where standard expansion modules are not feasible
This signal board may not be suitable for applications requiring a high number of analog inputs, as it is designed to provide a single additional channel. It is also not intended for use with non-Siemens PLC systems or older controller generations that do not support the S7-1200 signal board interface.
Key specifications
Compatibility: Siemens SIMATIC S7-1200 CPU series
Input type: Analog
Mounting: Direct integration onto the CPU front
Design: Compact signal board format
To install the signal board, first ensure that the power supply to the SIMATIC S7-1200 controller is disconnected. Remove the front cover of the CPU module and insert the signal board into the designated slot until it clicks securely into place. Once installed, replace the cover and configure the new input channel within the TIA Portal software environment to map the analog signal to your specific application logic.
What to consider before purchase
Verify compatibility with your specific S7-1200 CPU model
Ensure the required analog signal range matches the board specifications
Confirm that the CPU has an available slot for a signal board
For optimal performance and longevity, ensure that the signal wiring is properly shielded and routed away from high-voltage power lines to minimize electromagnetic interference. Regularly check the physical connection and software configuration during routine maintenance intervals.

## FAQ

### How much does the Siemens SB 1231 Signal Board 6ES7231-4HA30-0XB0 cost, and is it available for purchase?

The price is 103.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 29.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Siemens SB 1231 Signal Board 6ES7231-4HA30-0XB0 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

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