# Siemens SIMATIC S7-1200 SM 1278 IO-Link Master Expansion Module

**URL:** https://aio.lv/en/product--siemens-6es72784bd320xb0--1784939
**Data updated:** 2026-05-18 02:40 (EEST)
**Category:** Server Parts & Components
**Manufacturer:** Siemens
**Manufacturer code:** 6ES72784BD320XB0
**EAN:** 4025515082088
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 360.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 298.34 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-6es72784bd320xb0--1784939

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Siemens SIMATIC S7-1200 SM 1278 is a specialized IO-Link Master expansion module designed for industrial automation systems. It enables seamless integration of IO-Link devices into the S7-1200 PLC environment, supporting efficient communication and data exchange. This module is essential for modernizing control systems, providing reliable connectivity for sensors and actuators in various industrial applications.

## Long description

The Siemens SIMATIC S7-1200 SM 1278 IO-Link Master expansion module is a high-performance communication interface designed to integrate IO-Link devices into the SIMATIC S7-1200 programmable logic controller ecosystem. This module facilitates efficient data exchange between the controller and field-level devices, ensuring seamless connectivity for sensors and actuators in complex industrial automation environments.
Advantages
The primary benefit of this module is its ability to simplify the integration of intelligent field devices, reducing wiring complexity and enabling advanced diagnostics. By supporting the IO-Link standard, it allows for centralized parameterization and monitoring of connected sensors and actuators, which significantly improves system transparency and maintenance efficiency. The robust design ensures reliable operation in demanding industrial conditions, maintaining high data integrity and communication stability throughout the automation process.
Suitable for
Integration of IO-Link sensors and actuators into S7-1200 PLC systems
Industrial automation projects requiring advanced device diagnostics
Modernization of existing control systems for improved data accessibility
Applications involving complex sensor networks and remote parameterization
When it may not be suitable
This module is specifically designed for the Siemens S7-1200 series and is not compatible with other PLC families or non-IO-Link communication protocols. It may not be the optimal choice for simple digital I/O applications where the advanced features of IO-Link are not required, as it represents a more specialized and higher-cost solution compared to standard I/O modules.
Key specifications
Interface: IO-Link Master
Compatibility: SIMATIC S7-1200 series
Number of ports: 4 IO-Link ports
Communication standard: IO-Link V1.1
Mounting: DIN rail mounting
How to use
The module is installed by mounting it directly onto the DIN rail adjacent to the S7-1200 CPU or other expansion modules. Once physically connected via the internal bus, the module is configured using the TIA Portal engineering software. Users must define the IO-Link ports and assign the appropriate device description files (IODD) for each connected sensor or actuator to establish communication. After configuration, the process data is mapped to the PLC memory area for access within the control program.
What to consider before purchase
Ensure your existing S7-1200 CPU firmware supports the module
Verify that your field devices are IO-Link compliant
Check the total power budget of your PLC system to accommodate the module
Confirm the availability of the required IODD files for your specific sensors
Usage recommendations
Always ensure that the module is installed in a clean, dry environment and that all electrical connections are tightened according to the manufacturer's torque specifications to prevent signal interference or hardware damage.

## FAQ

### How much does the Siemens SIMATIC S7-1200 SM 1278 IO-Link Master Module cost, and is it available for purchase?

The price is 360.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 16.07.2026 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 SIMATIC S7-1200 SM 1278 IO-Link Master Module 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

## Image

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