6ES7137-6AA01-0BA0 ET 200SP CM PTP Serial Communication Module | Siemens

The Original New Siemens 6ES7137-6AA01-0BA0 SIMATIC ET 200SP CM PTP Communication Module is a point-to-point serial communication module for ET 200SP distributed I/O systems. It provides flexible serial connectivity via RS‑232, RS‑422, and RS‑485 interfaces with selectable protocols including Freeport, 3964(R), USS, and Modbus RTU (master/slave). Data rates up to 250 kbit/s and cable lengths up to 1,200 m enable integration with a wide range of serial devices such as drives, HMIs, barcode readers, and third-party controllers. Suitable for BU type A0, mounting directly on the ET 200SP BaseUnit.

Core Engineering Highlights:
RS‑232 / RS‑422 / RS‑485 serial interfaces | 250 kbit/s max data rate (RS‑485) | Freeport, 3964(R), USS, Modbus RTU master/slave protocols | 1,200 m max cable length (RS‑422/485) | 24V DC | 35 mA max current consumption | 0.7 W power loss | 8 byte I/O address space (performance mode: 32 byte) | BU type A0 compatible | Firmware updatable

Key Features:

• Original New Siemens 6ES7137-6AA01-0BA0 module

• Point-to-point serial communication for ET 200SP distributed I/O systems

• Three selectable physical interfaces: RS‑232, RS‑422, RS‑485

• Multi-protocol support: Freeport, 3964(R), USS, Modbus RTU (master and slave)

• RS‑485 data rate up to 250 kbit/s, RS‑232/RS‑422 up to 115.2 kbit/s

• RS‑422/RS‑485 cable length up to 1,200 m (depending on transmission speed)

• RS‑232 cable length up to 15 m

• Modbus RTU address area: 1 to 247 (extended: 1 to 65,535); up to 32 slaves

• Freeport and 3964(R) telegram length up to 2 kbyte

• 4 kbyte telegram buffer, buffering up to 255 telegrams

• 8 byte I/O address space (performance mode: 32 byte)

• Reverse polarity protection on power supply

• I&M data support (I&M0 to I&M3) for identification and maintenance

• Firmware updatable

• Mechanical coding element (Type D) for secure module identification

• Wire-break diagnostics

• Diagnostics alarm capability

• CE, UL, CSA, FM, RCM, KC, Marine approved

Applications:

• Serial communication with third-party devices (drives, HMIs, barcode readers, printers, scales)

• Modbus RTU networking with sensors, meters, and actuators

• USS protocol communication with Siemens drives

• Custom serial protocols via Freeport

• Legacy serial device integration into ET 200SP distributed I/O systems

• Factory automation and process control serial connectivity

Technical Specifications:

Supply Voltage:

Current & Power:

Interfaces:

Protocol Support:

Address Space:

Diagnostics:

Physical & Environmental:

System Compatibility:

• Siemens SIMATIC ET 200SP distributed I/O system

• BU type A0 BaseUnit (e.g., 6ES7193-6BP00-0DA0, 6ES7193-6BP20-0DA0)

• ET 200SP Interface Modules (IM 155-6 PN, etc.)

• S7‑1200, S7‑1500, S7‑300, S7‑400 as PROFINET IO controller

• TIA Portal engineering framework (STEP 7 V17 or higher; GSD integration for earlier versions)

• Third-party devices via serial protocols

Typical System Architecture:
ET 200SP Interface Module (e.g., IM 155-6 PN)
↓
BU Type A0 BaseUnit
↓
6ES7137-6AA01-0BA0 CM PTP Module
│
├── RS‑232 / RS‑422 / RS‑485 Serial Interface
│
└── Serial Devices (Drives, HMIs, Barcode Readers, Scales, Modbus RTU Networks, etc.)
↓
TIA Portal Configuration (Freeport, 3964R, USS, Modbus RTU Master/Slave)

Related Products:

• 6ES7193-6BP00-0DA0 – BaseUnit BU15-P16+A0+2D, type A0

• 6ES7193-6BP20-0DA0 – BaseUnit BU15-P16+A10+2D, type A0

• 6ES7137-6AA00-0BA0 – Predecessor version (firmware < V2.0)

• 6ES7137-6EA00-0BA0 – CM CAN communication module

• 6ES7137-6BD00-0BA0 – CM IO-Link communication module

• SIPLUS ET 200SP, CM PtP – Extreme temperature version (–40°C to +70°C) with conformal coating

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