1738-VHSC24M23 Allen-Bradley

1738-VHSC24M23 Allen-Bradley I / O module

Product  Description：

The Allen-Bradley 1738-VHSC24M23 is a Very High-Speed Counter (VHSC) module belonging to the ArmorPoint I/O family. This module is specifically designed for "On-Machine" applications, allowing it to be mounted directly on a machine rather than inside a traditional centralized electrical cabinet. The 1738-VHSC24M23 provides high-speed pulse counting and frequency measurement capabilities for ControlLogix, CompactLogix, and other PLC systems via a network adapter. It features M23 style connectors, which provide a secure and sealed interface for sensors and actuators in harsh environments.

Technical Specifications

• Module Type: Very High Speed Counter (VHSC)

• Input Voltage: 24V DC

• Number of Channels: 2 independent counter channels

• Input Frequency: Supports a maximum input frequency of up to 1 MHz

• Input Signals: Compatible with 24V DC incremental encoders and various high-speed pulse sources

• Output Points: Includes 2 sourcing outputs that can be tied to counter presets for immediate hardware-level response

• Connection Interface: M23 12-pin threaded connectors

• Enclosure Rating: IP67, IP69K (dust-tight and water-resistant for high-pressure washdowns)

• Operating Temperature: -20 to 60 degrees Celsius (-4 to 140 degrees Fahrenheit)

• Counter Modes: Supports Counter, Encoder (X1, X2, X4), and Period/Rate measurement modes

Product Advantages

• On-Machine Design: The ruggedized housing eliminates the need for a separate protective enclosure, significantly reducing wiring costs, labor, and the overall footprint of the control system.

• Exceptional Speed: With a 1 MHz counting frequency, this module is capable of processing data from high-precision encoders and high-speed production lines with minimal latency.

• Local Output Control: The integrated outputs can react to counter values within microseconds, bypassing the PLC scan time for critical tasks like high-speed sorting or emergency stops.

• Durable Connectivity: The M23 connector system is vibration-resistant and sealed, ensuring reliable electrical contact even in environments with heavy mechanical movement or fluid exposure.

• Seamless Integration: Like other Bulletin 1738 modules, it integrates easily into the Rockwell Automation Studio 5000 environment, allowing for straightforward configuration and diagnostics.

Important Precautions

• Wiring Integrity: Ensure that M23 cables are properly seated and tightened to maintain the IP67/IP69K seal. Loose connectors can lead to moisture ingress and intermittent signal loss.

• Power Supply Quality: Use a regulated 24V DC power source. Excessive noise or voltage spikes on the power line can interfere with high-speed pulse counting accuracy.

• Shielding and Grounding: To prevent electromagnetic interference (EMI) from affecting the high-frequency signals, always use shielded cables for encoder connections and ensure the shield is correctly grounded.

• Module Orientation: While the module is rugged, it should be mounted in a way that prevents significant physical impact and allows for adequate heat dissipation during high-speed operation.

• Disconnection Safety: Never connect or disconnect the M23 cables while power is applied to the module, as this may cause electrical arcing or damage to the sensitive internal electronics.

Product Applications

• High-Speed Packaging: Used for tracking product position on conveyor belts and triggering labeling or sealing mechanisms at precise intervals.

• Motion Control and Positioning: Interfacing with incremental encoders to provide real-time position feedback for motor-driven axes in CNC or robotic applications.

• Flow Measurement: Monitoring high-frequency pulse outputs from flow meters in liquid and gas processing plants to calculate total volume or flow rates.

• Bottling and Canning: Managing high-speed counting for filling lines where hundreds of units pass a sensor every minute.

• Material Handling: Detecting the speed and position of automated guided vehicles (AGVs) or high-speed sorting systems in logistics warehouses.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.