Industrial Communication | Siemens | 6ES7151-1CA00-3BL0 6ES7151-1CA00-3BL0 ET 200S Compact

Product Description: Siemens 6ES7151-1CA00-3BL0

The Siemens 6ES7151-1CA00-3BL0 is a standard interface module (IM151-1) for the SIMATIC ET 200S distributed I/O system. This version features conformal coating, making it suitable for harsh or corrosive environments. It connects the ET 200S station to a PROFIBUS DP network as a slave device, supporting up to 63 I/O modules and offering modular, space-saving expansion for industrial automation.

Key Features

• PROFIBUS DP slave interface module
• Conformal coated version for increased resistance to moisture, dust, and corrosion
• Supports up to 63 electronic modules per station
• DIP switch configuration for station address
• Diagnostic LEDs for module and communication status
• DIN rail mounting with BaseUnit and terminal modules
• Supports hot-swappable module replacement (with active backplane)

Technical Specifications

• Part Number: 6ES7151-1CA00-3BL0
• Communication Interface: PROFIBUS DP (RS485)
• Max Transmission Rate: 12 Mbps
• Max Modules per Station: 63
• Address Range: Up to 244 bytes input / 244 bytes output
• Station Addressing: DIP switch selectable
• Power Supply: 24 V DC (via external connection)
• Galvanic Isolation: Between PROFIBUS and backplane
• Coating: Conformal coated for extended environmental protection
• Mounting: DIN rail (ET 200S BaseUnit required)
• Dimensions (W × H × D): 45 mm × 119.5 mm × 75 mm
• Weight: Approx. 180 g
• Protection Class: IP20
• Operating Temperature: 0 °C to +60 °C
• Storage Temperature: –40 °C to +70 °C
• Certifications: CE, UL, cULus, ATEX (Zone 2), EAC

Application Areas

• Distributed I/O systems in PROFIBUS- based automation
• Industrial environments with high humidity, dust, or corrosive exposure
• Modular machinery with decentralized control systems
• Process automation in chemical, mining, marine, and energy sectors
• Harsh environments requiring conformally coated electronics

Advantages

• Conformal coating extends product life in adverse conditions
• Reliable PROFIBUS DP communication with fast cycle times
• Scalable and modular system integration with ET 200S
• Supports diagnostics and hot-swapping for increased availability
• Seamless configuration via STEP 7 and TIA Portal