Siemens 6ES7141-1BF40-0AB0 ET 200X I/O Module

Rugged Decentralized Control for Demanding Environments

The Siemens 6ES7141-1BF40-0AB0 ET 200X distributed I/O module provides 8 digital inputs and 8 digital outputs in a rugged IP67 housing. This module accepts 24V DC signals from sensors and drives loads up to 2A per output channel. It features an integrated PROFIBUS DP interface for seamless communication with higher-level controllers. The module also includes short-circuit and overcurrent protection for all output channels. LED indicators display the status of each input and output for local diagnostics. Furthermore, the robust design withstands vibration, moisture, and temperature extremes in harsh industrial settings.

Technical Specifications

Parameter	Specification
Product Type	Distributed I/O Module
Product Line	SIMATIC ET 200X
Digital Inputs	8 channels (24V DC)
Digital Outputs	8 channels (24V DC, 2A)
Input Current	7 mA per channel
Output Type	Transistor (sourcing)
Output Protection	Short-circuit and overcurrent protection
Communication	Integrated PROFIBUS DP
PROFIBUS Baud Rate	Up to 12 Mbps
Power Supply	24V DC (via connector)
Power Consumption	200 mA typical
Electrical Isolation	500V between I/O and bus
Status Indicators	16 LEDs for inputs and outputs
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Protection Class	IP67
Dimensions (W x H x D)	150 x 80 x 60 mm
Weight	0.6 kg
Mounting	Screw-mount or wall-mount
Connector Type	7/8″ power connector and M12 signal connectors
Certifications	CE, UL, CSA, cULus
Product Origin	Germany

Application and System Integration

Engineers commonly deploy the Siemens 6ES7141-1BF40-0AB0 in machine-mount applications, conveyor systems, and outdoor installations. This module connects directly to S7-300 or S7-400 controllers via PROFIBUS DP. Its IP67 rating allows installation directly on machinery without additional enclosures. The module supports various M12 connectors for quick field wiring. Consequently, plant operators reduce cabinet space and installation costs while maintaining reliable control performance.