Description
1738-VHSC24M23 A-B Ultra-High Speed Counter Module
Product Dimensions：
Product Description (Detailed Explanation)
The 1738-VHSC24M23 is an IP67-rated distributed I/O module that interfaces with the DeviceNet network (or other ArmorPoint adapters). It is specifically engineered to process high-speed signals from encoders, flow meters, and proximity switches that exceed the processing speeds of standard digital input modules.
The module features two independent 24V DC counters capable of reaching frequencies up to 1 MHz. Because it is an “Armor” product, the electronics are fully encapsulated, and it utilizes rugged M23 connectors for field wiring, making it resistant to dust, water, and vibration.
Product Parameters (Technical Specifications)
| Parameter Category | Specification |
| Module Type | Very High-Speed Counter (VHSC) |
| Number of Counters | 2 Independent Counters |
| Input Voltage | 24V DC Nominal (10-28.8V DC) |
| Max. Frequency | 1 MHz (Counter/Encoder) |
| Connector Type | M23 (12-pin) |
| Counting Modes | Up/Down, Pulse/Direction, Encoder (X1, X2, X4) |
| Output Type | 2 Sourcing Outputs (one per counter) |
| Enclosure Rating | IP67, IP69K, NEMA 4X/6P |
| Network Support | ArmorPoint Backplane (DeviceNet/EtherNet/IP) |
| Operating Temp. | -20°C to +60°C (-4°F to +140°F) |
Product Advantages (Key Benefits)
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Cabinet-Free Installation: The IP67 rating allows the module to be mounted directly on the machine frame, reducing wiring costs and eliminating the need for large electrical enclosures.
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Extreme Speed: With a 1 MHz capability, it can handle high-resolution encoders on high-speed spindles or fast-moving production lines with zero lag.
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On-Board Intelligence: The module can perform local comparisons (Preset/Limit values) and trigger its own physical outputs in microseconds, bypassing PLC scan time for critical timing tasks.
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Rugged Connectivity: The M23 connector system provides a secure, vibration-proof connection that is significantly more durable than standard terminal blocks.
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Flexible Filtering: Includes programmable digital filters to eliminate electrical noise and contact bounce from field sensors.
Precautions (Important Notes)
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Connector Compatibility: This module uses an M23 12-pin connector. Ensure your encoder or sensor cables are properly terminated with the matching M23 female cordsets.
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Power Supply: The module requires a stable 24V DC source. Ensure the ArmorPoint power bus (PointBus) has sufficient current capacity to support high-speed switching.
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Cable Length: For 1 MHz operation, cable length and quality (shielding) are critical. Long cable runs can cause signal degradation; use high-quality twisted-pair shielded cables.
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Configuration: The module must be configured via software (e.g., RSNetWorx or Studio 5000). Parameters such as “Filter Clock” and “Storage Mode” must be set correctly for the module to count accurately.
Product Applications (Typical Use Cases)
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High-Speed Labeling: Precise position tracking of bottles or packages on a conveyor to trigger labels at exact millisecond intervals.
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Turbine/Motor Speed Monitoring: Measuring the RPM of high-speed shafts using proximity probes or encoders for overspeed protection.
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Cut-to-Length Applications: Tracking the length of material (metal, paper, or plastic) and triggering a shear or knife once a specific count is reached.
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Positioning Systems: Interfacing with incremental encoders on CNC machines or robotic gantries for real-time axis tracking.
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Flow Measurement: Calculating totalized flow and flow rates from high-frequency pulse-output flow meters in chemical or food processing.
Shipping Port: Xiamen, 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
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