Siemens 6ES7 153-2BA10-0XB0 ET200M PROFIBUS DP Interface Module

The Siemens 6ES7 153-2BA10-0XB0 (commonly known as IM153-2BA10) is a high‑feature PROFIBUS DP interface module for the ET200M distributed I/O system. This module connects a rack of S7‑300 compatible I/O modules (up to 12) to a PROFIBUS DP master (e.g., S7‑300/400 CPU or a PC with a DP card). It supports transparent data exchange with the PLC, handling up to 244 bytes of input and output data. The IM153-2BA10 is also capable of operating in redundant configurations (with two modules) for fail‑safe applications in process industries. It features a built‑backplane bus, automatic baud rate detection up to 12 Mbps, and integrated diagnostic LEDs.

Technical Specifications

Functional Description

The IM153-2BA10 acts as a slave on the PROFIBUS DP network. It receives process data from the PROFIBUS master and passes it to the local I/O modules via the backplane. Conversely, it collects data from the inputs and sends them to the master. The module supports acyclic data exchange via DP‑V1, allowing access to module parameters and diagnostic data. It also supports isochronous mode (synchronous communication) for high‑precision motion control applications. The module’s firmware can be updated via PROFIBUS using the SiCom software.

Redundant Operation

In redundant systems, two IM153-2BA10 modules are used in separate racks, connected to two PROFIBUS DP lines (redundant master). The modules automatically synchronize and, in case of a failure of one bus or module, switch over without interruption. This feature is essential for safety‑critical processes such as those in chemical plants or power generation. Redundant mode requires configuration in the master’s hardware setup.

Diagnostic and Status Indicators

The front panel provides LEDs: SF (red system fault), BF (red bus fault), DC 24V (green, supply present), and ACT (yellow, data exchange active). The module also has an integrated watchdog that monitors the PROFIBUS communication. In case of a bus failure, the outputs can be set to a predefined failsafe state.

Compatibility

The IM153-2BA10 is compatible with any S7‑300 I/O module, including digital I/O (SM321, SM322), analog I/O (SM331, SM332), and specialty modules (FM, CP). It can also be used with fail‑safe modules (F‑SM) when the master is a failsafe CPU (e.g., S7‑400F). The module is configured in STEP 7 or TIA Portal as a DP slave device.

Typical Applications

The ET200M system with IM153-2BA10 is used in distributed control systems where I/O needs to be placed near the process to reduce wiring. Typical industries include automotive assembly lines (robotic cells), wastewater treatment plants, packaging machinery, and wind turbines.

Installation Overview

Mount the module on the ET200M rack (IM153 rack) using a DIN rail. Insert the interface module into the leftmost slot. Install the I/O modules to its right. Connect PROFIBUS cables to the 9‑pin D‑SUB connector with bus termination resistors at both ends. Supply 24 V DC to the rack’s power module. The module automatically detects the baud rate when the bus master is active. Set the PROFIBUS address using the rotary switches on the module (two‑digit hex).

Conclusion

The Siemens IM153-2BA10 provides a flexible, high‑performance gateway for ET200M distributed I/O, supporting redundancy and high data throughput for demanding industrial automation systems.