GE PACSystems RX3i IC695HSC304 – High‑Speed Counter Module for Encoders, Positioning, and Pulse Measurement

The GE PACSystems RX3i IC695HSC304 is a dedicated high‑speed counter module designed for applications where the CPU’s normal scan just isn’t fast enough—think quadrature encoders, cut‑to‑length, flow metering, web handling, and high‑speed rate/position capture. It offloads fast counting, capture, and compare functions directly in hardware, so you get consistent response even when your project grows more complex. From my experience, it pairs nicely with motion axes where you need reliable A/B/Z tracking and deterministic compare outputs without writing convoluted interrupt logic.

A packaging OEM told us they swapped an older 90‑30 HSC for the IC695HSC304 on an RX3i rack and immediately saw tighter cut accuracy and fewer false counts at higher web speeds.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• Dedicated high‑speed counting – Hardware‑based counting/capture so critical events aren’t missed during CPU scan peaks.
• Encoder‑ready inputs – Supports A/B/Z quadrature encoders and pulse/direction signals for position and speed applications.
• Multiple modes – Up/down, quadrature, frequency/period, and totalizing modes typically available to fit a range of machines.
• High‑speed capture/compare – Latches position/rate and generates compare/marker outputs for synchronous cutting, indexing, or reject gates.
• Tight RX3i integration – Seamless backplane data exchange with RX3i CPUs; configure and monitor via Proficy Machine Edition, which keeps commissioning straightforward.
• Noise‑aware design – Designed for industrial environments; works best with shielded cable and proper grounding to reduce false counts.
• Diagnostics and status – Front indicators and diagnostics help you spot wiring mistakes, loss of signal, or encoder direction mismatch fast.

Technical Specifications

Related / Supporting Products

• IC695CHS012 / IC695CHS016 – RX3i 12‑slot / 16‑slot racks required for module installation.
• IC695PSA040 / IC695PSA140 – RX3i power supplies; choose wattage based on total rack load.
• IC695CPU315 / IC695CPU320 – RX3i CPUs commonly paired with the HSC for motion/position applications.
• IC693HSC301 / IC693HSC302 – Series 90‑30 HSC modules; older generation, often replaced by IC695HSC304 during RX3i migrations.
• 5 V line‑driver or 24 V open‑collector encoders – Typical field devices used with the HSC; select shielding/voltage to match your wiring run and noise environment.

Installation & Maintenance

• Panel & rack – Install the module in an RX3i rack with proper bonding to the control cabinet ground. Maintain ventilation clearance; avoid mounting above heat sources.
• Wiring – Use shielded twisted pairs for A/B/Z and route encoder cables away from VFD outputs and motor leads. Terminate shields at a single end (typically the cabinet end) to minimize ground loops.
• Power & I/O – Match encoder voltage type (5 V line‑driver vs. 24 V open collector). Provide a clean, regulated supply for sensors; common returns consistently to avoid offset errors.
• Configuration – Set count modes, scaling, and compare setpoints in Proficy Machine Edition. You might notice better noise immunity by enabling input filtering where supported.
• Safety – De‑energize before wiring. Verify direction sense and Z‑index behavior at low speed before enabling any motion‑linked outputs.
• Maintenance – Periodically check terminal tightness and cable shielding. Clean dust with dry air. Firmware updates (where applicable) should be scheduled during planned downtime.

Quality & Certifications

• Typically meets CE and UL/cUL industrial controls requirements; RoHS compliant in most cases.
• Manufacturer warranty practices apply; our coverage is 365 days from delivery.

One thing I appreciate is how the IC695HSC304 simplifies fast, repeatable compare functions—most teams end up reducing ladder complexity while gaining better timing. If you’re upgrading from Series 90‑30, this module tends to be a straightforward path to higher speeds with familiar tooling.