Product Overview: 1794-ACN15 ControlNet Adapter
The 1794-ACN15 is a Flex I/O communication adapter from Allen-Bradley. It enables ControlNet network connectivity for up to eight Flex I/O modules. This module converts incoming power to backplane power for adjacent I/O. It provides one ControlNet port with 5 Mbps communication rate.
Technical Specifications
- Brand: Allen-Bradley / Rockwell Automation
- Model: 1794-ACN15
- Type: Redundant Media ControlNet Adapter
- Communication Rate: 5 Mbps
- ControlNet Port: 1 (Belden RG-6/U)
- Flexbus Output Current: 640 mA max
- Input Voltage: 19.2–31.2V DC
- Current Draw: 450 mA max (330 mA @ 24V)
- Inrush Current: 23A for 2 ms
- Power Dissipation: 4.6 W max @ 19.2V
- Isolation Voltage: 850V DC
- Operating Temperature: 0 to 55 °C
- Storage Temperature: -40 to 85 °C
- Vibration: 5 g @ 10–500 Hz (IEC 68-2-6)
- Shock: 30 g peak, 11 ms pulse
- Mounting: DIN Rail or Panel
- Protection Rating: IP20
- Dimensions: 87 x 94 x 69 mm (3.6 x 3.7 x 3.44 in)
- Weight: 0.136 kg (0.3 lbs)
Installation & Wiring
- Mount on standard DIN rail (zinc-plated steel recommended).
- Use copper wire rated at 75 °C, insulation max 1.2 mm.
- Single wire: 0.33–2.5 mm² (22–12 AWG).
- Double wire: 0.33–1.3 mm² (22–16 AWG) – do not intermix.
- Power wiring length must not exceed 10 m (32.8 ft).
- Ground to chassis via DIN rail for proper earthing.
Diagnostic & Status Indicators
- I/O Status – red/green LED
- Comm A – red/green LED
- Comm B – red/green LED
- Visual indication for network health and I/O communication.
Compatibility & System Integration
- Supports up to 8 Flex I/O modules per adapter.
- Works with Flex I/O power supplies and backplane.
- ControlNet network – redundant media capable.
- Suitable for Logix and other ControlNet scanners.
- ATEX Zone 2 and North American Hazardous Location approved.
Oiltech Controls’s Insight
- This adapter is a reliable choice for ControlNet backbone in legacy and modern systems.
- We recommend verifying your scanner firmware for compatibility.
- Commonly paired with 1794-IB16, 1794-OB16, and 1794-IE8 modules.
- Tested in harsh environments – the 5 g vibration tolerance is a key advantage.
- Redundant media support gives added network resilience.
What Equipment Is It For?
- Flex I/O chassis and terminal bases.
- ControlNet networks (coaxial media).
- Rockwell Logix controllers with ControlNet scanner.
- Industrial control panels requiring distributed I/O.
- Process automation, manufacturing, and material handling.
Packaging, Shipping & Warranty
- Package includes: 1794-ACN15 adapter, documentation.
- Warranty: 12-month warranty against defects.
- Shipping: FedEx, UPS, or DHL – 24 to 28 hours dispatch.
Why Buy From Oiltech Controls?
- 15+ years of industrial automation spare parts expertise.
- Global shipping with reliable carriers (FedEx, UPS, DHL).
- Every unit is tested – surplus and refurbished options available.
- 12-month warranty on all products.
- Technical verification performed before shipment.
- Specialized support for obsolete and legacy systems.
Professional FAQ
Q1: What is the maximum number of I/O modules this adapter can handle?
A: It supports up to 8 Flex I/O modules. Plan your I/O count accordingly.
Q2: Can I use this adapter with 24V DC power supply?
A: Yes, nominal voltage is 24V DC; acceptable range is 19.2–31.2V DC.
Q3: Does it support redundant ControlNet media?
A: Yes, it has one port but supports redundant media via network topology. Use proper terminators.
Q4: What cable type is required for the ControlNet port?
A: Use Belden RG-6/U or equivalent coaxial cable for reliable 5 Mbps communication.
Q5: Is this module suitable for hazardous locations?
A: Yes, it is ATEX Zone 2 and North American Hazardous Location approved.
Contact Information
Email: info@oiltechcontrols.com
Phone: +86 158 8020 0923 (WhatsApp)
Copyright © 2026 Oiltech Controls Limited. https://www.oiltechcontrols.com/ All rights reserved.
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