• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • GE IC694MDL655 Digital Input Module

                                                                Overview

                                                                IC694MDL655 is a 32-point discrete digital input module designed for GE Series 90-30 PLC, compatible with RX3i dual-bus universal backplanes for mixed legacy and new hardware deployment. It collects 24VDC field switch signals, such as equipment auxiliary contacts, limit switches and fault feedback signals, and transmits digital status to the PLC CPU for logic judgment.

                                                                Specifications

                                                                • I/O Points: 32 isolated digital input channels
                                                                • Rated Input Voltage: 24VDC positive logic
                                                                • Input Filter: Software configurable debounce delay to eliminate contact bounce interference
                                                                • Group Isolation: Every 16 points form one isolated group to block cross-circuit interference
                                                                • Form Factor: Single slot rack-mounted module, hot-swappable on RX3i backplanes
                                                                • Status Indicator: Individual LED for each channel to display on/off signal status
                                                                • Operating Temperature: 0°C ~ +60°C for indoor industrial cabinets
                                                                • Power Consumption: Low backplane power load, suitable for multi-module rack layout

                                                                Key Functions

                                                                1. Field digital signal collection
                                                                    
                                                                   Detect on/off status of valves, circuit breakers, motor auxiliary contacts, proximity switches and fault alarm contacts.
                                                                2. Contact bounce suppression
                                                                    
                                                                   Adjustable input filter time stabilizes fluctuating signals from mechanical switches to avoid false logic triggers.
                                                                3. Group electrical isolation
                                                                    
                                                                   Two independent isolation groups prevent surge or short-circuit faults on one branch from affecting other input points and the rack backplane.
                                                                4. Real-time channel status feedback
                                                                    
                                                                   LED lights directly reflect field signal state for convenient on-site inspection and wiring troubleshooting.
                                                                5. Legacy hardware compatibility
                                                                    
                                                                   Can be mixed installed with IC695 series modules on RX3i backplanes to reuse existing 90-30 field wiring without full cabinet reconstruction.

                                                                Compatible Equipment

                                                                • RX3i backplanes: IC695CHS007 (7-slot), IC695CHS012 (12-slot)
                                                                • RX3i CPUs: IC695CPE305, IC695CPE305BGAE
                                                                • IC695PSD140 rack power supply
                                                                • Proficy Machine Edition programming software
                                                                • 24VDC limit switches, relay auxiliary contacts, breaker status feedback contacts

                                                                Applications

                                                                General industrial digital signal monitoring:
                                                                • Thermal power turbine auxiliary equipment status monitoring
                                                                • Petrochemical valve and pump feedback signal collection
                                                                • Water treatment plant equipment running status detection
                                                                • Factory production line machinery limit switch signal acquisition

The structure and details of the product：