GE IC694APU300 High-Speed Counter Module

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                                                                        • GE IC694APU300 High-Speed Counter Module
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                                                                        • Overview

                                                                          IC694APU300 is a specialty high-speed counter module for GE Series 90-30 PLC, fully compatible with Emerson PACSystems RX3i dual-bus backplanes for mixed legacy & new hardware deploymentEmerson. It integrates 4 independent high-speed counter channels, dedicated encoder pulse acquisition and hardware trigger outputs, designed for motion control, speed measurement, positioning and pulse flow counting. It supports both single-ended and differential encoder signals (enhanced version), with on-board hardware logic that executes counting and comparison without occupying CPU scan load.

                                                                          Key Specifications

                                                                          • Max counting frequency: 1 MHz (25%~87% signal duty cycle)
                                                                          • Counter channels: 4 independent high-speed counter channels
                                                                          • Digital Inputs: 12 positive logic sourcing inputs; selectable 5VDC / 10~30VDC signal level
                                                                            • Single-ended mode: full 12 inputs available
                                                                            • Differential encoder mode: 6 differential channels (uses 12 pins)Emerson
                                                                          • Digital Outputs: 4 positive logic sourcing outputs
                                                                            • 10–30VDC, max 0.5A per channel; built-in self-recovering overcurrent ESCP protection
                                                                          • Backplane power draw: 250mA @ 5VDC (1.25W total power consumption)
                                                                          • Terminal: Detachable screw terminal block for easy field wiring maintenance
                                                                          • Status LEDs: Separate LED for each input/output; enhanced version adds 3 global module status LEDs
                                                                          • Operating temperature: 0°C ~ +60°C indoor cabinet; storage -40°C ~ +85°C
                                                                          • Form factor: Single-slot rack module, hot-swappable on RX3i backplanes

                                                                          Supported Signal & Working Modes

                                                                          1. Encoder pulse acquisition
                                                                              
                                                                             Classic version: only single-ended encoders; Enhanced version supports both single-ended & differential line-driver encoders (A/B/Z phase)
                                                                          2. Multi counting modes
                                                                              
                                                                             Up/down count, quadrature encoder count, periodic time-base sampling for speed calculation
                                                                          3. Hardware position comparison output
                                                                              
                                                                             Pre-set comparison values trigger instant hardware output without CPU delay, ideal for cut-to-length, positioning limit control
                                                                          4. Gate & latch input
                                                                              
                                                                             External digital input to freeze counter values for position capture

                                                                          Core Functions

                                                                          1. High-speed pulse independent counting
                                                                              
                                                                             Process encoder pulses up to 1MHz locally on the module; avoids CPU scan delay errors for high-speed motion axes.
                                                                          2. Real-time speed & position calculation
                                                                              
                                                                             Built-in time-base registers calculate rotational speed, linear speed and total travel distance from pulse counts.
                                                                          3. Hardware fast trigger output
                                                                              
                                                                             When counter value matches preset target, 4 onboard outputs act instantly to trigger brakes, cutters, solenoids without PLC program lag.
                                                                          4. Dual signal compatibility
                                                                              
                                                                             Supports low-voltage 5V servo encoders and general 24VDC proximity pulse sensors via software voltage selection.
                                                                          5. Comprehensive self-diagnosis
                                                                              
                                                                             Detects module faults, open input wiring, overloaded outputs; upload fault codes to CPU for HMI alarm display.
                                                                          6. Legacy system upgrade compatibility
                                                                              
                                                                             Mix-install with IC695 RX3i CPU and I/O modules on IC695CHS007 / IC695CHS012 backplanes, reuse existing Series 90-30 encoder wiring.

                                                                          Compatible Equipment

                                                                          • RX3i universal backplanes: IC695CHS007 (7-slot), IC695CHS012 (12-slot)
                                                                          • RX3i CPU series: IC695CPE305, IC695CPE305BGAE
                                                                          • IC695PSD140 rack power supply, IC695LRE001 expansion module
                                                                          • Proficy Machine Edition programming & configuration software
                                                                          • Incremental single-ended / differential rotary encoders, pulse flow meters, proximity sensors
                                                                          • Solenoid valves, brakes, signal relays driven by module hardware outputs

The structure and details of the product：