Siemens 6ES7197-1LA04-0XA0 PROFIBUS DP Interface Module

Product Overview

This 6ES7197-1LA04-0XA0 distributed I/O interface module connects ET 200S stations to the PROFIBUS DP network. It supports a maximum transmission rate of 12 Mbps for high-speed data exchange. The module measures 40 mm in width, 125 mm in height, and 120 mm in depth. Its compact housing weighs approximately 180 grams, which simplifies DIN rail mounting.

This interface module accommodates up to 12 I/O modules per station. It also supports up to 63 stations on a single PROFIBUS segment. The integrated 9-pin D-sub connector ensures reliable PROFIBUS cabling. The module provides electrical isolation between the bus and the station’s internal logic. This isolation protects connected devices from potential ground loop issues. It consumes a typical current of 100 mA from the 24 V DC power supply.

Technical Specifications

Parameter	Specification
Product Type	Distributed I/O Interface Module
Model	6ES7197-1LA04-0XA0
Communication Protocol	PROFIBUS DP (RS-485)
Transmission Rate	9.6 kbps to 12 Mbps (automatic detection)
Bus Connector	9-pin D-sub female connector
Number of I/O Modules per Station	Up to 12
Stations per Segment	Up to 63
Electrical Isolation	Yes (500 V DC for 1 minute)
Supply Voltage	24 V DC (nominal)
Current Consumption	Typ. 100 mA
Power Loss	Typ. 2.4 W
Dimensions (W x H x D)	40 mm x 125 mm x 120 mm
Weight	Approx. 180 g
Mounting Type	DIN rail (standard EN 60715)
Ambient Operating Temperature	0 °C to 60 °C
Storage Temperature	-40 °C to 70 °C
Relative Humidity	5% to 95% (non-condensing)
Protection Class	IP20

Key Features and Benefits

The module automatically detects the PROFIBUS baud rate to simplify system configuration. It includes a built-in termination resistor that you can easily enable via a physical switch. This built-in termination eliminates the need for external bus terminators in many applications. The front panel features clear LED indicators for power, bus activity, and diagnostic status. These LEDs provide immediate visual feedback for rapid troubleshooting.

Installation and Compatibility

You can mount this interface module on a standard DIN rail without any special tools. It directly connects to the terminal module (TM) for simple power distribution. The module operates seamlessly with all ET 200S digital, analog, and intelligent I/O modules. This compatibility makes it a versatile choice for distributed control systems. It also supports redundancy features when used with specific CPU configurations.

Applications

Manufacturing plants use this module to connect remote I/O racks to a central PLC. Process automation systems rely on it for reliable field device communication. It also performs well in material handling and assembly line applications.