In modern industrial automation, reliable communication between remote I/O and PLCs is essential. The Schneider Electric CRA module enables efficient Ethernet-based remote I/O connectivity in PLC and DCS systems, improving scalability, diagnostics, and overall networked automation performance.
Product Details
Product Description
The 1746-NO8V is a high-density analog voltage output module engineered for the Allen-Bradley SLC 500 ecosystem, providing eight single-ended channels for precise control of actuators and drives. This module supports a wide output range of -10V to +10V DC with 14-bit resolution, featuring 500V DC isolation to protect backplane integrity from field-side electrical noise. Designed for flexibility, it installs into any available 1746 chassis slot (excluding slot 0) and utilizes an external 24V DC power source to optimize thermal management and backplane power consumption.
Technical Specifications
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Part Number: 1746-NO8V
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Output Type: Analog Voltage (-10 to +10V DC)
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Channel Count: 8 Single-Ended Channels
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Resolution: 14-bit
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Backplane Current (5V DC): 120 mA
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External Power Requirement: 24V DC ±10% (N.E.C. Class 2)
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Power Consumption: 5.6W (Typical)
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Thermal Dissipation: 6.6W
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Isolation: 500V DC (Field-to-Backplane)
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LED Indicators: 8 Green Channel LEDs, 1 Green Module Status LED
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Wiring: 14 to 24 AWG (Two wires per terminal max)
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Calibration: Factory calibrated for lifetime accuracy
Application and Comparison
The 1746-NO8V is the primary solution for high-density voltage applications within the SLC 500 line. Compared to the 4-channel 1746-NO4V, this module doubles the control density in a single slot, making it ideal for large-scale PID loops and complex modulation tasks. For optimal signal stability, engineers should utilize shielded twisted-pair cabling such as Belden 8761 and ensure proper grounding with a 1/4 inch braid.
FAQ
What is the maximum current the backplane provides to this module?The 1746-NO8V draws a maximum of 120 mA from the 5V DC backplane; however, the actual analog output power is derived from the external 24V DC supply.
Does this module support current (mA) output?No, the 1746-NO8V is dedicated to voltage signals. If 4-20mA control is required, the 1746-NO8I (Current Version) or 1746-NO4I should be utilized.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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