High-Speed Counter & Motion Feedback Solution — Allen-Bradley 1769-HSC | Compact I/O Series
Where This Product Is Used
The Allen-Bradley 1769-HSC is a high-speed counter module engineered for demanding industrial environments where precise pulse counting, encoder feedback, and frequency measurement are mission-critical. Engineers specify this module across a wide range of applications:
- Conveyor & Material Handling Systems — Tracks product throughput, belt speed, and position via quadrature encoder feedback, enabling accurate sortation and accumulation control.
- Packaging Machinery — Monitors fill counts, label registration, and indexing cycles on high-speed form-fill-seal and cartoning lines.
- CNC & Servo Positioning — Provides closed-loop position verification for linear and rotary axes where the motion controller requires an independent encoder cross-check.
- Flow Metering & Batching — Counts pulses from turbine, Coriolis, or gear-type flow meters to accumulate batch totals with high accuracy.
- Press & Stamping Lines — Measures crankshaft RPM and stroke count for die-protection and production-rate monitoring.
- Textile & Printing Equipment — Tracks web speed and register marks for tension control and color registration.
- Pump & Compressor Monitoring — Counts shaft revolutions and measures frequency to detect cavitation, bearing wear, or speed deviation.
Technical Specifications
| Parameter | Value |
|---|---|
| Catalog Number | 1769-HSC |
| Series | Compact I/O |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Module Type | High-Speed Counter |
| Number of Counters | 4 (configurable as 2 differential pairs) |
| Maximum Count Rate | 1 MHz (single-ended); 250 kHz (differential) |
| Input Voltage Range | 5 V DC (TTL) / 12–24 V DC (sourcing/sinking) |
| Counter Modes | Pulse, Quadrature (×1, ×2, ×4), Up/Down, Period/Rate |
| Outputs | 2 × solid-state outputs (configurable as preset or gate) |
| Backplane Current Draw | 200 mA @ 5 V DC |
| Operating Temperature | 0 °C to 60 °C (32 °F to 140 °F) |
| Storage Temperature | −40 °C to 85 °C |
| Relative Humidity | 5–95% non-condensing |
| Dimensions (H × W × D) | 118 mm × 35 mm × 87 mm (approx.) |
| Weight | Approx. 250 g |
| Compatible Controllers | MicroLogix 1500, CompactLogix (via 1769 bus) |
| Programming Software | RSLogix 500 / Studio 5000 Logix Designer |
Why Engineers Specify This Model
- 1 MHz Single-Ended Count Rate — Handles the fastest encoder and pulse-train signals without missing counts, even on high-speed production lines running at thousands of parts per minute.
- Quadrature ×4 Decoding — Quadruples effective encoder resolution without hardware changes, giving tighter position feedback on existing mechanical systems.
- Onboard Solid-State Outputs — Two configurable outputs allow the module to trigger downstream events (e.g., reject gates, batch stops) directly, reducing PLC scan-time dependency for time-critical actions.
- Flexible Input Voltage Compatibility — Accepts both 5 V TTL and 12–24 V DC signals, eliminating the need for external signal conditioning in mixed-voltage installations.
- Compact I/O Bus Integration — Slots directly into any 1769 bus segment alongside analog, digital, and specialty modules, keeping panel footprint minimal.
- Deterministic Data Exchange — Integrates with RSLogix 500 and Studio 5000 for deterministic I/O updates, ensuring count data is always current within the controller scan.
Complete System Bill of Materials
A typical 1769-HSC installation requires the following components. Konmask.com stocks or can source all items below:
- 1769-HSC — High-Speed Counter Module (this item)
- 1769-L24ER-QB1B / 1769-L33ER — CompactLogix Controller (host processor)
- 1769-PA2 / 1769-PB2 — Compact I/O Power Supply
- 1769-ECR / 1769-ECL — Right/Left End Cap (bus terminator)
- 1769-CRR1 / 1769-CRR3 — Right-Side Expansion Cable (for multi-bank configurations)
- Incremental Encoder — Any A/B quadrature encoder with compatible output voltage (e.g., Dynapar, Heidenhain, Omron)
- 1492-CABLE010X — Pre-wired I/O cable (optional, reduces wiring time)
- 24 V DC Power Supply — For field-side encoder and output power
Compliance & Industry Standards
- UL Listed — UL 508 (Industrial Control Equipment)
- CE Marked — Compliant with EU Low Voltage Directive (LVD) and EMC Directive
- RoHS Compliant — Restriction of Hazardous Substances (EU Directive 2011/65/EU)
- ATEX / IECEx — Not rated for hazardous locations; install in suitable enclosure per NEC/IEC requirements
- IEC 61131-2 — Programmable Controller Equipment standard compliance
- ISO 9001 — Manufactured under Rockwell Automation’s ISO 9001-certified quality management system
Quality Assurance & Sourcing
Konmask.com specializes in authentic Allen-Bradley / Rockwell Automation components for industrial automation professionals. Every 1769-HSC unit we supply undergoes the following process:
- Authenticity Verification — Units are cross-referenced against Rockwell Automation catalog data, label markings, and date codes to confirm genuine origin.
- Functional Pre-Check — Where applicable, modules are bench-tested for backplane communication and I/O response prior to dispatch.
- Secure Packaging — Anti-static packaging with moisture barrier and shock-absorbing foam to protect sensitive electronics during international transit.
- Traceability — Lot numbers and serial references are documented for full supply-chain traceability on request.
- Warranty — 90-day replacement warranty against defects in materials and workmanship.
How to Source This Part
- Add to Cart — Click “Add to Cart” above and proceed to checkout for immediate online purchase.
- Request a Quote — For volume orders (5+ units), OEM pricing, or project-based procurement, email support@konmask.com with your quantity and delivery requirements.
- Expedited Availability — If the item shows as out of stock, contact us directly. We maintain supplier relationships that often allow us to source within 3–7 business days.
- Export & Cross-Border Orders — We ship internationally. Contact us for HS code documentation, commercial invoices, and export compliance support.
Application-Specific FAQ
Q: Can the 1769-HSC be used with a MicroLogix 1500?
A: Yes. The 1769-HSC is compatible with the MicroLogix 1500 via the 1769 Compact I/O bus. It is not compatible with MicroLogix 1100 or 1400 series.
Q: What is the maximum encoder frequency the module can handle?
A: In single-ended mode, the 1769-HSC accepts input frequencies up to 1 MHz. In differential (RS-422) mode, the maximum is 250 kHz per channel.
Q: Does the module support absolute encoders?
A: No. The 1769-HSC is designed for incremental encoders and pulse-generating devices. For absolute encoder (SSI, EnDat, BiSS) integration, consider the 1769-SM2 or a dedicated motion module.
Q: Can I use the onboard outputs to directly drive a solenoid valve?
A: The solid-state outputs are rated for low-current switching. For inductive loads such as solenoid valves, use an interposing relay or solid-state relay rated for the load current.
Q: Is this module compatible with Studio 5000 / ControlLogix?
A: The 1769-HSC is a Compact I/O module and connects to CompactLogix controllers. It is not directly compatible with ControlLogix (1756) backplanes. For ControlLogix systems, use the 1756-HSC module.
Q: What is the lead time for this part?
A: In-stock units ship within 1–2 business days. For sourced units, typical lead time is 3–7 business days. Contact us for urgent requirements.
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