SIEMENS SIMATIC ET 200SP, CM PTP, PU 1 Bangladesh. Mlfb-6ES7137-6AA01-0BA0 price

The Siemens 6ES7137-6AA01-0BA0 is a SIMATIC ET 200SP CM PTP serial interface communication module for connecting serial devices to an ET 200SP automation system. It supports RS-422, RS-485 and RS-232 interfaces and provides communication modes including Freeport, 3964(R), USS and MODBUS RTU master/slave. Siemens specifies a maximum data transmission rate of 250 k bit/s and identifies the module as suitable for BU type A0. The RS-422/485 interface uses differential signaling and is isolated from the ET 200SP backplane bus and load voltage. The module is intended for serial device integration in industrial automation systems, including drives, instruments, controllers and other serial field devices where one of the supported protocols is required.  

2. Technical Specification

Specification	Details
Manufacturer	Siemens
Product Code	6ES7137-6AA01-0BA0
Product Family	CM PTP serial interface
Product Type	Serial communication module
Interfaces	RS-422, RS-485, RS-232
Communication Modes	Freeport, 3964(R), USS, MODBUS RTU master/slave
Maximum Data Rate	250 k bit/s
Base Unit	Type A0
RS-422/485 Signaling	Differential voltage interface
RS-422 Signals	T(A), R(A), T(B), R(B), GND
RS-485 Signals	R/T(A), R/T(B), GND
Isolation	RS-422/485 signals isolated from backplane bus and load voltage
Maximum Cable Length	Up to 1,200 m at 0.3–19.2 k bit/s; shorter lengths at higher rates
Standard	DIN 66259 Parts 1 and 3, EIA-RS422/485, CCITT V.11

3. Key Features

• Supports RS-422 serial communication.
• Supports RS-485 serial communication.
• Supports RS-232 serial communication.
• Freeport communication.
• 3964(R) protocol support.
• USS support.
• MODBUS RTU master/slave functionality.
• Maximum transmission rate of 250 k bit/s.
• Suitable for ET 200SP BU type A0.
• Isolated RS-422/485 signals.  

4. Typical Application

• Serial drive communication.
• MODBUS RTU device integration.
• Industrial instrumentation.
• Machine controllers.
• Serial barcode or identification equipment.
• Legacy serial automation devices.
• Point-to-point industrial communications.

5. Product Highlights

The 6ES7137-6AA01-0BA0 provides several serial physical interfaces and protocol options within the compact ET 200SP platform. Support for MODBUS RTU, USS, 3964(R) and Freeport allows integration with a range of industrial devices, while isolated RS-422/485 signaling supports robust serial network implementation.  

6. Important Ordering & Installation Information

The module is suitable for BU type A0 Base Units. Serial wiring must follow the selected physical interface and Siemens terminal assignment. Cable length and termination requirements depend on transmission speed; Siemens specifies a maximum RS-422/485 cable length of 1,200 m at 0.3–19.2 k bit/s and recommends termination for longer installations as documented in the manual.  

Always follow the manufacturer's official installation, wiring, commissioning and safety instructions.

7. Why Choose Siemens SIMATIC ET 200SP CM PTP 6ES7137-6AA01-0BA0?

The 6ES7137-6AA01-0BA0 is suitable for ET 200SP applications requiring flexible serial connectivity. Its support for three physical serial standards and multiple industrial protocols allows one module to serve different device-integration requirements, particularly where MODBUS RTU, USS or Freeport communication is required.  

8. Product Summary

The Siemens 6ES7137-6AA01-0BA0 is a SIMATIC ET 200SP CM PTP serial communication module supporting RS-422, RS-485 and RS-232. It provides Freeport, 3964(R), USS and MODBUS RTU master/slave communication and supports data transmission up to 250 k bit/s. The RS-422/485 signals are isolated from the backplane bus and load voltage. The module is suitable for BU type A0 and is intended for serial industrial device integration, including drives, instrumentation and controllers.  

Product Code: 6ES7137-6AA01-0BA0
Manufacturer: Siemens
Product Family: CM PTP serial interface
Product Type: Serial communication module