6ES7137-6AA00-0BA0 Siemens ET 200SP CM PTP Communication Module

Product Overview

The Siemens 6ES7137-6AA00-0BA0 is a point-to-point (PTP) communication module for the SIMATIC ET 200SP distributed I/O system. It provides a serial RS232/RS485/RS422 interface supporting protocols including ASCII, 3964R, USS, and Modbus RTU. This module enables ET 200SP stations to communicate with barcode scanners, printers, weigh scales, variable frequency drives, and other serial devices directly over the backplane bus.

Key Specifications

• Module Type: Communication Module (CM), Point-to-Point
• Interface: RS232 / RS485 / RS422 (configurable)
• Protocols: Freeport (ASCII), 3964(R), USS, Modbus RTU Master/Slave
• Baud Rate: Up to 115.2 kbps
• Galvanic Isolation: Yes, between interface and backplane
• Base Unit Type: A0
• Power Loss: Typ. 0.65 W
• Dimensions (W × H × D): 15 mm × 73 mm × 58 mm

Compatibility & Applications

Compatible with ET 200SP IM155-6 PN/DP interface modules and BaseUnits type A0. Essential for barcode scanner integration, serial printer connection, weigh scale communication, VFD USS control, Modbus RTU device networking, and legacy serial device integration into modern PROFINET/PROFIBUS architectures.

FAQ

• Q: What protocols are supported? A> Freeport (ASCII), 3964(R), USS (drive protocol), and Modbus RTU (Master and Slave modes).
• Q: Can I use RS232 and RS485 simultaneously? A> No, the module has one physical interface selectable between RS232, RS485, and RS422 via wiring and configuration.
• Q: Is Modbus TCP supported? A> No, this module supports Modbus RTU over serial only. For Modbus TCP, use ET 200SP PN interface modules or dedicated Ethernet communication processors.
• Q: What TIA Portal version is required? A> TIA Portal V13 or higher with the corresponding hardware support package (HSP).

Installation Guide

1. Install BaseUnit BU15-P16+A0+2B on the ET 200SP DIN rail.
2. Insert 6ES7137-6AA00-0BA0 into the BaseUnit.
3. Connect serial device cable to the 9-pin D-sub or terminal block connector (depending on BaseUnit variant).
4. Configure interface type (RS232/485/422), baud rate, and protocol in TIA Portal.
5. Program send/receive instructions (SEND_PTP, RCV_PTP) in the PLC program.

Selection Tips

• Use 6ES7137-6AA00-0BA0 for serial PTP communication in ET 200SP systems.
• For IO-Link master functionality, use 6ES7137-6BD00-0BA0 (CM 4×IO-Link) instead.
• Verify your serial device protocol (ASCII, USS, Modbus) is supported before ordering.
• Consider cable length and termination requirements for RS485 multi-drop networks.