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- 6AG1137-6AA01-7BA0
- Communication Module
- Germany
- 15 × 73 × 58 mm
- 0.03 kg
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Product Overview
The Siemens 6AG1137-6AA01-7BA0 Communication Module is a SIPLUS ET 200SP CM PtP serial communication module designed for reliable serial data exchange in industrial automation systems. It is based on the Siemens ET 200SP communication architecture and is designed for applications that require serial connectivity between controllers, automation equipment, field devices, and other compatible systems.
Unlike a conventional digital input or output module, the 6AG1137-6AA01-7BA0 is dedicated to communication. It provides serial interfaces supporting RS-232, RS-422, and RS-485, making it suitable for a variety of industrial communication requirements.
The module supports several communication operating modes, including Freeport, 3964(R), USS, and MODBUS RTU Master/Slave. The maximum specified communication speed is 250 kbit/s, providing a flexible interface for connecting serial devices within an industrial automation architecture.
As a SIPLUS product, this version also features conformal coating and an extended operating temperature capability, making it suitable for demanding industrial environments where additional environmental robustness is required.
The 6AG1137-6AA01-7BA0 is based on the standard 6ES7137-6AA01-0BA0 communication module architecture and is designed for use with compatible ET 200SP BaseUnits, type A0.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Siemens |
| Product Family | SIPLUS ET 200SP |
| Model | 6AG1137-6AA01-7BA0 |
| Product Type | Communication Module |
| Communication Type | Serial communication |
| Module Designation | SIPLUS ET 200SP CM PtP |
| Base Product | 6ES7137-6AA01-0BA0 |
| Communication Interfaces | RS-232 / RS-422 / RS-485 |
| Communication Modes | Freeport, 3964(R), USS, MODBUS RTU Master/Slave |
| Maximum Communication Speed | Up to 250 kbit/s |
| BaseUnit Compatibility | Type A0 |
| Operating Temperature | -40 °C to +70 °C |
| Protection | IP20 |
| Conformal Coating | Yes |
| Dimensions | 15 × 73 × 58 mm* |
| Weight | 0.03 kg* |
| Official Net Weight | 0.040 kg |
| Installation | ET 200SP modular system |
| Application | Industrial serial communication |
| System Architecture | Siemens SIPLUS / ET 200SP |
| Product Status | Active product |
*Dimensions and weight above reflect the product data supplied for this article. Siemens catalog data identifies the module height as 73 mm and depth as 58 mm, while the currently listed net weight is 0.040 kg.
Function and Working Principle
The primary function of the Siemens 6AG1137-6AA01-7BA0 is to provide serial communication between the ET 200SP automation system and compatible external devices.
The module acts as a communication interface rather than a conventional I/O channel.
A simplified architecture can be represented as:
PLC / ET 200SP Controller → CM PtP Communication Module → Serial Device
The module can exchange data through different serial communication standards depending on the application.
RS-232 Communication
RS-232 can be used for point-to-point communication with compatible serial equipment. Typical applications can include configuration devices, controllers, instruments, and other serial equipment.
RS-422 Communication
RS-422 provides differential serial communication and can be useful in industrial installations where longer cable distances or improved noise immunity are required.
RS-485 Communication
RS-485 is widely used for industrial multi-device communication because of its differential signaling and suitability for networked serial equipment.
MODBUS RTU
The module supports MODBUS RTU Master and Slave operation, allowing compatible industrial devices to exchange registers, status information, measurements, and control data.
USS
USS communication can be used for compatible Siemens drive-related applications where serial communication is required.
Freeport
Freeport mode provides flexibility for applications requiring user-defined serial communication protocols.
The module therefore provides a versatile bridge between the ET 200SP automation system and external serial equipment.
Role in Industrial Control Systems
The 6AG1137-6AA01-7BA0 plays an important role when an ET 200SP system needs to communicate with equipment that uses serial communication rather than a standard Ethernet-based interface.
A typical system may include:
- Siemens ET 200SP CPU
- ET 200SP Interface Module
- SIPLUS CM PtP Communication Module
- Digital Input Modules
- Digital Output Modules
- Analog Input Modules
- Analog Output Modules
- MODBUS RTU Devices
- RS-485 Instruments
- RS-232 Equipment
- Siemens Drives
- HMIs
- Sensors
- Industrial Controllers
The communication module provides the serial interface needed to exchange information between the automation controller and external devices.
For example, an industrial system may use the 6AG1137-6AA01-7BA0 to communicate with a MODBUS RTU instrument. The PLC can request measurement data from the instrument, process the received information, and then use the result within the control program.
In another application, the module can communicate with a compatible drive or controller using an appropriate serial protocol.
Industrial Applications
The Siemens 6AG1137-6AA01-7BA0 is suitable for industrial applications where serial communication is required.
Manufacturing Automation
Production systems often contain legacy or specialized equipment using RS-232, RS-422, RS-485, or MODBUS RTU. The communication module can provide an interface between this equipment and the ET 200SP control system.
Process Automation
Process instruments frequently use serial communication to exchange measurement and status information. The module can connect compatible instruments to the automation system.
Drive Communication
Where compatible serial protocols are required, the module can be used for communication with suitable drive equipment and motor-control systems.
Energy and Utility Systems
Meters, monitoring equipment, controllers, and other utility devices may use MODBUS RTU or RS-485 communication. A serial communication module can integrate these devices into a PLC architecture.
Building Automation
HVAC controllers, meters, monitoring devices, and other equipment may provide serial interfaces. The module can help connect these devices to an industrial control system.
Legacy Equipment Integration
One important application is integrating older serial devices into newer modular automation architectures.
Instead of replacing every existing serial device, an engineer may use an appropriate serial communication interface to allow compatible equipment to remain part of the overall control system.
Installation and System Integration
The 6AG1137-6AA01-7BA0 is designed for integration into the Siemens ET 200SP system using a compatible BaseUnit type A0.
Before installation, engineers should verify:
- Correct communication module model
- ET 200SP system compatibility
- BaseUnit type
- Serial communication standard
- Device protocol
- Communication speed
- Device address
- Cable type
- Termination requirements
- Electrical grounding
- Shielding requirements
- PLC hardware configuration
Basic Installation Procedure
- Place the automation system into a safe maintenance condition.
- Disconnect power according to approved electrical safety procedures.
- Verify the 6AG1137-6AA01-7BA0 model.
- Confirm that the installed BaseUnit is compatible.
- Inspect the module and communication interface.
- Install the module in the appropriate ET 200SP position.
- Secure the module correctly.
- Connect the RS-232, RS-422, or RS-485 wiring as required.
- Verify signal polarity and communication wiring.
- Configure the communication protocol.
- Configure the required baud rate and communication parameters.
- Configure device addressing where applicable.
- Restore system power.
- Check module diagnostic information.
- Establish communication with the connected device.
- Verify transmitted and received data.
- Perform controlled commissioning.
For RS-485 and other differential serial networks, cable routing, shielding, grounding, termination, and signal polarity should be carefully checked. Many communication problems are caused by wiring or configuration errors rather than a defective communication module.
Compatible System Components
The 6AG1137-6AA01-7BA0 is normally used together with compatible ET 200SP and industrial automation components.
| Component | Function |
|---|---|
| Siemens ET 200SP CPU | Executes PLC application logic |
| ET 200SP Interface Module | Connects the distributed I/O station to the automation network |
| ET 200SP BaseUnit Type A0 | Provides the required module mounting and connection structure |
| SIPLUS CM PtP | Provides serial communication |
| Digital Input Modules | Acquire discrete field signals |
| Digital Output Modules | Control discrete field devices |
| Analog Input Modules | Acquire analog process measurements |
| Analog Output Modules | Generate analog control signals |
| MODBUS RTU Devices | Exchange serial process data |
| RS-485 Instruments | Provide serial measurement and status data |
| Siemens Drives | Motor control and drive applications |
| HMI | Operator monitoring and control |
| Sensors | Provide process information |
| Actuators | Perform physical control actions |
The exact combination depends on the communication protocol and system architecture.
Recommended Alternative Models
The following Siemens products may be considered when evaluating related communication and ET 200SP requirements. They perform different functions and should not automatically be treated as direct replacements.
| Model | Type | Key Feature | Application |
|---|---|---|---|
| Siemens 6AG1137-6AA01-7BA0 | SIPLUS ET 200SP CM PtP | RS-232 / RS-422 / RS-485 serial communication | Harsh-environment automation |
| Siemens 6ES7137-6AA01-0BA0 | ET 200SP CM PtP | Standard serial communication | General ET 200SP systems |
| Siemens 6AG1137-6BD00-2BA0 | SIPLUS ET 200SP CM 4xIO-Link | IO-Link communication | Smart field devices |
| Siemens 6AG1137-6EA00-2BA0 | SIPLUS ET 200SP CM CAN | CAN communication | CAN-based automation |
| Siemens 6AG1155-6AU01-7CN0 | SIPLUS ET 200SP Interface Module | PROFINET interface | Distributed I/O |
| Siemens 6AG1155-6BU01-7CN0 | SIPLUS ET 200SP Interface Module | PROFIBUS DP integration | Distributed automation |
| Siemens 6AG1136 Series | SIPLUS ET 200SP I/O Modules | Digital and power I/O functions | Industrial control |
The 6ES7137-6AA01-0BA0 is particularly relevant because the SIPLUS 6AG1137-6AA01-7BA0 is based on this standard ET 200SP CM PtP architecture. However, the SIPLUS version adds conformal coating and extended environmental capability.
Key Advantages
- Supports RS-232 serial communication
- Supports RS-422 serial communication
- Supports RS-485 serial communication
- Supports Freeport communication
- Supports 3964(R)
- Supports USS
- Supports MODBUS RTU Master and Slave
- Communication speeds up to 250 kbit/s
- Designed for Siemens ET 200SP systems
- Suitable for BaseUnit type A0
- SIPLUS conformal-coated construction
- Extended operating temperature range
- Suitable for demanding industrial environments
- Compact modular design
- Dimensions of approximately 15 × 73 × 58 mm
- Supplied specification lists a weight of 0.03 kg
- Siemens catalog data lists a net weight of 0.040 kg
- Suitable for legacy serial device integration
- Useful for distributed automation architectures
Technical FAQs
What is the Siemens 6AG1137-6AA01-7BA0?
The Siemens 6AG1137-6AA01-7BA0 is a SIPLUS ET 200SP CM PtP serial communication module designed to provide serial connectivity within compatible ET 200SP automation systems.
What communication interfaces does it support?
The module supports RS-232, RS-422, and RS-485 serial communication.
Does it support MODBUS RTU?
Yes. The module supports MODBUS RTU Master and Slave operation.
What other communication modes are available?
The module supports Freeport, 3964(R), and USS in addition to MODBUS RTU.
What is the maximum communication speed?
The specified maximum communication speed is 250 kbit/s.
What is the difference between 6AG1137-6AA01-7BA0 and 6ES7137-6AA01-0BA0?
The 6AG1137-6AA01-7BA0 is the SIPLUS version based on the 6ES7137-6AA01-0BA0 architecture. It includes conformal coating and an extended operating temperature range for more demanding environmental conditions.
What are the dimensions of the module?
The supplied product specification lists the dimensions as 15 × 73 × 58 mm. Siemens product data confirms a height of 73 mm and depth of 58 mm.
How much does the module weigh?
The supplied specification lists 0.03 kg. Siemens catalog information currently lists the net weight as 0.040 kg.
What BaseUnit does the module require?
The module is specified for use with ET 200SP BaseUnit type A0.
What is the operating temperature range?
The SIPLUS version is specified for an extended operating temperature range of approximately -40 °C to +70 °C.
What is the main application of this module?
Its primary application is connecting compatible serial devices to an ET 200SP automation system using RS-232, RS-422, RS-485, or supported serial protocols.
Can it be used with legacy serial equipment?
Yes. One of its practical applications is integrating compatible legacy or specialized serial devices into a modern ET 200SP automation architecture.
Conclusion
The Siemens 6AG1137-6AA01-7BA0 Communication Module is a SIPLUS ET 200SP CM PtP serial communication interface designed for industrial automation applications requiring reliable serial data exchange.
Its support for RS-232, RS-422, RS-485, Freeport, 3964(R), USS, and MODBUS RTU Master/Slave makes it a flexible communication solution for connecting PLC systems with compatible drives, instruments, controllers, meters, and other serial devices.
The module is particularly valuable in applications where existing serial equipment must be integrated into an ET 200SP automation architecture. Its SIPLUS construction, conformal coating, and extended temperature capability also make it suitable for more demanding industrial environments.
For system integrators and maintenance engineers, successful implementation depends on more than simply installing the module. The serial interface type, communication protocol, baud rate, device address, wiring, shielding, grounding, termination, BaseUnit compatibility, and PLC configuration should all be verified before commissioning.
With its compact ET 200SP design and broad serial communication capabilities, the 6AG1137-6AA01-7BA0 provides a practical interface between Siemens automation systems and a wide range of industrial serial equipment.