Siemens 6AG1138-4DF11-7AB0 Serial Interface Module
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||

Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Siemens |
| Model | 6AG1138-4DF11-7AB0 |
| Product Name | SIPLUS ET 200S EM 1SI Serial Interface Module |
| Product Series | SIPLUS ET 200S |
| Product Type | Single-Channel Serial Communication Module |
| Base Model | 6ES7138-4DF11-0AB0 |
| Number of Serial Interfaces | 1 |
| Supported Interface Standards | RS-232C, RS-422, RS-485 |
| Rated Supply Voltage | 24 V DC |
| Permissible Supply Voltage Range | 20.4–28.8 V DC |
| Maximum Current from L+ Supply | 80 mA |
| Typical Current from L+ Supply | 20 mA |
| Maximum Backplane Bus Current | 10 mA at 3.3 V DC |
| Typical Power Dissipation | 1.2 W |
| Maximum Transmission Rate | 115.2 kbit/s |
| Communication Mode | Point-to-point serial communication |
| Integrated Protocols | Modbus, USS |
| Supported Communication Functions | Serial data transmission and reception |
| Maximum RS-232 Cable Length | 15 m |
| Character Framing | Configurable start/stop bits and parity, depending on protocol |
| Diagnostic Indicators | RxD, TxD and SF fault indicators |
| Potential Isolation | Serial interface electrically isolated from internal electronics |
| Reverse Polarity Protection | Yes |
| Environmental Protection | Conformal coating |
| Operating Temperature | -25°C to +70°C |
| Installation System | SIMATIC ET 200S distributed I/O |
| Dimensions | 15 × 81 × 52 mm |
| Weight | 0.047 kg |
FAQ
Q1: What is the main function of the Siemens 6AG1138-4DF11-7AB0?
A1: This module provides a serial communication interface for the SIMATIC ET 200S distributed I/O system. It enables a PLC to exchange data with compatible devices such as industrial instruments, barcode readers, drives and other controllers using supported serial communication standards.
Q2: Which communication interfaces does this module support?
A2: The module supports RS-232C, RS-422 and RS-485. RS-232C is typically used for point-to-point connections over shorter distances, while RS-422 and RS-485 use differential signalling for improved noise immunity. The appropriate interface depends on the connected device and the required network arrangement.
Q3: What communication protocols are supported?
A3: The module supports integrated Modbus and USS protocol functions. Communication parameters and protocol selection must match the connected device. Before commissioning, confirm the required protocol, data format and controller programming instructions for the intended application.
Q4: What is the maximum communication speed?
A4: The maximum transmission rate is 115.2 kbit/s. The actual supported rate depends on the selected protocol and interface configuration. Both communicating devices must use compatible communication settings to maintain reliable data exchange.
Q5: How should I troubleshoot a communication failure?
A5: Check the 24 V DC supply, interface selection, cable wiring and connector pinout first. Then verify the baud rate, parity, data bits and stop bits where applicable. Check the RxD and TxD indicators for communication activity and the SF indicator for a group fault. If communication remains unavailable, test the cable and connected device separately.
Q6: Is the module suitable for harsh industrial environments?
A6: The SIPLUS version features conformal coating and is specified for an operating temperature range of -25°C to +70°C. It is intended for industrial applications that require enhanced environmental resistance. However, the installation must still comply with the module’s environmental limits and appropriate enclosure requirements.
Q7: Does the module provide electrical isolation?
A7: Yes. The serial interface is electrically isolated from the internal electronics, helping reduce the effects of potential differences between connected equipment. Correct grounding, cable shielding and routing remain important for communication reliability and electrical safety.
Q8: What should I check before replacing this module?
A8: Verify the complete order number, communication protocol, interface type and existing ET 200S hardware configuration. The SIPLUS model is based on 6ES7138-4DF11-0AB0 and includes conformal coating for an extended environmental specification. Before removal, isolate the power supply and record the wiring and communication settings. After installation, verify data transmission, reception and diagnostic indicators.
Siemens 6AG1138-4DF11-7AB0 Serial Interface Module is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.








