Balluff BNI004M 4 Channel Digital Input Module

Balluff BNI004M is a four-channel digital input module that interfaces with Balluff's EtherNet/IP family to bring four discrete input signals onto an EtherNet/IP network. Identified by the order code BNI EIP-104-105-Z015, this device functions as a fieldbus input block designed for distributed I/O in automation architectures and reads digital sensor or switch states which are transmitted to the host PLC or PAC over EtherNet/IP. The module is documented as "BNI004M Input Module, BNI EIP-104-105-Z015" in Balluff literature, with configuration, mapping, and diagnostic guidance provided for Ethernet/IP modules in this series. Typical applications include remote monitoring of digital signals across automation cells, conveyors, packaging lines, and machine centers where four inputs must be read over an Ethernet/IP network. Using this module, engineers can extend the reach of their control system, simplify wiring, and centralize input data collection without sacrificing bandwidth or response times inherent to standard EtherNet/IP communications.