I/O modules

Core Functionality and Application

The GE IC694MDL660 positive/negative logic input module connects field devices to the RX3i PACSystem controller. This module accepts both sinking and sourcing input signals, which provides exceptional wiring flexibility. It monitors contact closures, proximity sensors, limit switches, and pushbutton states reliably. Additionally, the module filters electrical noise to prevent false triggering in industrial environments .

Technical Specifications

The following table details the core technical parameters for the GE IC694MDL660:

Input Signal Configurations

The GE IC694MDL660 supports two distinct wiring configurations for versatile applications:

• Positive Logic (Sourcing): Common terminal connects to DC supply, input provides signal path to return

• Negative Logic (Sinking): Common terminal connects to DC return, input provides signal path from supply

Design and Integration Features

The GE IC694MDL660 features optical isolation that protects the backplane from electrical surges . Its compact design occupies a single slot in the RX3i universal backplane . LED indicators on the front panel show the status of each input channel clearly . The module supports hot insertion, which allows replacement without powering down the system . Users must pair it with a compatible terminal block for field wiring connections .

System Compatibility

The GE IC694MDL660 works with all RX3i CPU models and firmware versions . It also integrates seamlessly with Series 90-30 systems using appropriate adapters . The module’s dual logic capability reduces the need for multiple module types in inventory . This flexibility simplifies system design and reduces spare parts requirements .

Details