1769-HSC Allen-Bradley CompactLogix High-Speed Counter Module
Manufacturer: Allen Bradley
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Part Number: 1769-OF5
Condition：New with Original Package
Product Type: High-Speed Counter Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Allen-Bradley 1769-HSC CompactLogix High-Speed Counter Module
The Allen-Bradley 1769-HSC, also cataloged as the 1769-HSC High-Speed Counter Module, operates as a dedicated hardware component for pulse frequency processing and encoder feedback acquisition within CompactLogix network architectures. The hardware processes high-frequency pulse trains directly from incremental encoders or proximity sensors, converting physical rotational counts into digital registers via the local backplane interface without secondary translation devices.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-HSC |
| Brand | Allen-Bradley |
| Origin | Standard Factory Sourced |
| Weight | 0.44 lbs (0.20 kg) |
| Dimensions | Standard CompactLogix 1769 single-slot module width |
| Operating Temp | Standard industrial open-type enclosure rating |
| Power Consumption | 425 mA at 5 VDC, 0 mA at 24 VDC |
| Continuous Isolation Voltage | 75 V with reinforced insulation |
| Slot Width | 1 slot |
| Terminal Screw Torque | 0.68 Nm |
| Retaining Screw Torque | 0.46 Nm |
EtherNet/IP Deterministic Networks and Backplane Bus Communication Velocity
The module interfaces directly with the CompactLogix system backplane to exchange pulse count metrics and frequency data with the host controller. Maintaining proper backplane bus communication velocity requires strict adherence to the power supply distance rating, restricting placement to within 4 modules of the system power source. Electrical current management dictates a 425 mA draw at 5 VDC from the backplane rail, while the 24 VDC rail remains unused. Integrating this module into control networks requires validating firmware flash compatibility to synchronize high-speed counter interrupts within scheduled deterministic network cycles.
Frequently Asked Questions
Q: Can the 1769-HSC module be inserted or removed under active backplane power?
A: No. The CompactLogix 1769 platform does not support Removal and Insertion Under Power (RIUP). Pulling or plugging the module while electrical power is applied to the backplane will damage the internal bus transceivers and trigger a major controller fault.
Q: How does the power supply distance rating affect the physical installation of this module?
A: Due to its 425 mA current load demand on the 5 VDC backplane rail, the module must be installed within 4 modules of the system power supply to prevent voltage drop and data packet corruption on the local bus.
Field Installation Guidelines
- Backplane Engagement and Interlock: Align the side tongue-and-groove slots with the adjacent module and slide the unit into place. Push the upper and lower bus levers forward to engage the backplane pins completely before applying system power.
- Enclosure and Mounting Requirements: Mount the open-type hardware securely onto an EN 50022 compliant 35 mm DIN rail or fasten it directly to the control panel sub-plate using the built-in panel mounting tabs. Ensure the installation environment remains clean and free of dust or condensation.
- Terminal Torque Specifications: Connect field wiring to the removable terminal blocks using proper wire gauges. Tighten the terminal screws to a strict torque value of 0.68 Nm and secure the module retaining screws to 0.46 Nm to maintain physical stability under operational vibration.