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Compact grey rectangular I/O module with M12 ports and status LEDs

Turck

Turck BL67-2AI-I 6827175 electrician tool

SKU CH-WGK2-4SZC0 MPN BL67-2AI-I

A compact IP67-rated I/O module with two analog inputs for 0/4 to 20 mA signals

  • TypeTest Equipment
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • Galvanic isolation protects signals via optocouplers
  • Two analog inputs accept 0/4 to 20 mA current
  • IP67 rating withstands dust and water ingress
  • Operates from -40 °C to 70 °C ambient
  • Compact 55 g module supports multiple fieldbus protocols

Industrial I/O Module

The Turck BL67-2AI-I is a rugged electronic module designed for industrial automation environments. It provides two analog input channels for current signals ranging from 0/4 to 20 mA. The module connects via M12 connectors and carries cULus approvals for safety compliance. It suits engineers integrating sensor data into fieldbus networks.

Sustained Operation

Galvanic isolation via optocouplers separates the electronics from the field level, protecting signal integrity during continuous operation. The IP67 housing withstands dust and temporary immersion across an ambient temperature range of -40 °C to 70 °C. Status and diagnostic LEDs provide immediate visual feedback on module health. This construction supports reliable long-term performance in harsh conditions.

Fieldbus Integration

The module operates independently of the fieldbus type, supporting protocols including CANopen, DeviceNet, EtherNet/IP, Modbus TCP, PROFIBUS-DP and PROFINET. This flexibility allows integration into existing network architectures without hardware changes. The M12 connection technology ensures secure signal links in vibration-prone installations. Buyers requiring voltage input types or higher channel counts will need alternative modules.

Highlights

  • Galvanic isolation protects signals via optocouplers
  • Two analog inputs accept 0/4 to 20 mA current
  • IP67 rating withstands dust and water ingress
  • Operates from -40 °C to 70 °C ambient
  • Compact 55 g module supports multiple fieldbus protocols

Specifications

BrandTURCK
ModelBL67-2AI-I 6827175
TypeTest Equipment
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

How much heat can the BL67-2AI-I module handle when running continuously in a cabinet?

The module is rated for ambient temperatures from -40 °C up to 70 °C, so it will operate all day without thermal throttling inside a standard enclosure.

What fieldbus hardware must already be in place for this I/O module to communicate?

It connects via M12 and supports CANopen, DeviceNet, EtherNet/IP, Modbus TCP, PROFIBUS-DP, PROFINET or Ethernet, so you need a matching master or gateway on one of those networks.

Will the 2 analog inputs work with the 4-20 mA sensors I already have on older machines?

Yes, each input accepts 0/4…20 mA signals and the electronics are galvanically separated from the field level, letting you reuse existing current-loop sensors directly.

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