Description
GE Fanuc IC697HSC700 High‑Speed Counter Module for Series 90-70 PLC Systems
The GE Fanuc IC697HSC700 is a high‑speed counter module for Series 90‑70 racks. It’s built for fast, deterministic counting of encoder pulses and high‑frequency inputs where scan‑based logic would typically miss edges—think web handling, cut‑to‑length, flow metering, or position tracking on packaging lines. From my experience, this unit slots in cleanly and offloads the CPU with hardware‑level counting, preset/compare, and capture functions that keep motion or rate tasks tight and repeatable.
Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery time: 1 week for in‑stock; no more than one month at the latest
- Payment: 50% advance; full payment before delivery
- Express delivery: FedEx, UPS, DHL
Key Features
- High‑speed counting – Hardware counts at frequencies that the CPU scan typically can’t catch; ideal for encoders and pulse trains.
- Quadrature and up/down modes – Supports A/B/Z encoders for directional counts, as well as single‑channel up/down or step/direction schemes.
- Preset/compare outputs – Generate fast compare or marker outputs when a target count is reached, helping with cut or divert actions.
- Capture and latched values – Latches counts on external events with minimal jitter; helpful for rate, period, or position sampling.
- Interrupts to CPU – Triggers immediate logic response for critical thresholds without waiting for the next scan.
- Noise‑robust front end – Input filtering and industrial signal levels that, in many cases, handle real‑world electrical noise better than plain PLC inputs.
- Status LEDs and diagnostics – Quick visual checks for channel activity and health; useful during commissioning.
- Direct 90‑70 backplane integration – Configures from the Series 90‑70 CPU and uses the native bus for fast data exchange.
Technical Specifications
| Brand / Model | GE Fanuc Series 90‑70 / IC697HSC700 |
| Product Type | High‑Speed Counter (HSC) module for IC697 racks |
| HS Code | 8537.10 (Programmable control panels/modules; voltage ≤ 1000 V) |
| Power Requirements | 5 VDC supplied from IC697 backplane (typical module load; no separate field power for logic) |
| Operating Temperature | Typically 0 to 60 °C (32 to 140 °F), non‑condensing |
| Signal Input / Output Types | High‑speed count inputs supporting quadrature A/B with index (Z) and up/down modes; 24 VDC industrial inputs with filtering; hardware compare/marker outputs (sourcing/sinking varies by wiring). |
| Max Count Rate | Application‑dependent; typically up to the MHz range for encoder/TTL‑level signals, lower for 24 VDC inputs |
| Communication Interface | IC697 backplane to Series 90‑70 CPU; front terminal connection for field signals |
| Installation Method | Plugs into IC697 rack (single‑slot); field wiring via front removable connector |
| Indicators & Diagnostics | Front LEDs for status/activity; onboard self‑diagnostics |
Where it shines
You might notice the biggest gains on machines where timing drift used to cause rejects—knife cuts on fast conveyors, diameter control on winders, or batch dosing with turbine flow meters. One thing I appreciate is how the IC697HSC700 lets you do immediate compares right in hardware, so the CPU code stays simpler and the motion stays consistent even as speeds change.
Related or Supporting Products
- IC697CHS750 / IC697CHS790 – Series 90‑70 racks (5/9‑slot); required backplane for the HSC module.
- IC697PWR711 – 90‑70 power supply; choose capacity based on total 5 V backplane load.
- IC697CPU7xx – 90‑70 CPUs; HSC configuration and interrupts handled in the CPU project.
- IC697CMM711 – Comms module if you need Ethernet/serial integration alongside the HSC.
- IC693HSC310 (Series 90‑30) – Alternative HSC when migrating smaller systems; different form factor and wiring.
- PACSystems RX3i IC695HSC3xx – Modern HSC family for new designs; higher performance and updated toolchain.
Installation & Maintenance
- Panel/cabinet – Mount the 90‑70 rack in a clean, dry cabinet with adequate ventilation; keep ambient within spec and allow airflow around the rack.
- Grounding & shielding – Use proper panel ground. For encoders or pulse lines, use shielded twisted pairs; bond shields at the cabinet end. Route away from VFD outputs and high‑voltage cabling.
- Wiring – Follow the terminal assignment in the HSC manual; respect input type (single‑ended vs. differential if available) and supply reference. In many cases, enabling built‑in input filtering reduces false counts.
- CPU configuration – Set count mode, presets, compare points, and interrupts in the hardware configuration. Verify latch/capture timing at actual machine speed.
- Routine checks – Periodically inspect connectors, clean dust with dry air, and verify encoder alignment and cable strain relief. Back up the PLC project whenever logic changes are made.
- Firmware & lifecycle – The HSC itself is hardware‑driven; keep the 90‑70 CPU and programming software at stable, supported versions when possible.
- Safety – Lock out power before wiring. Verify that fast outputs tied to compare thresholds cannot cause unexpected motion during testing.
Quality & Certifications
- CE and UL/cUL markings are typical for Series 90‑70 modules.
- Manufactured under ISO 9001 quality systems (factory level).
- RoHS compliance may vary by production vintage; many legacy 90‑70 parts predate full RoHS.
- Warranty coverage: 365 days from shipment.
If you’re replacing an existing counter card, a quick snapshot of your current encoder type and count rates helps confirm settings. In most cases, the IC697HSC700 drops in with minimal logic changes—usually just a tidy re‑map of the device configuration and a quick verification of compare points on the live machine.
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