Overview

The 1794-ADN module interfaces FLEX I/O modules to a DeviceNet network, enabling connections for low-level devices to plant floor controllers. This helps reduce wiring and startup time compared to traditional hard-wired systems.

Specifications

• I/O Capacity: 8 modules
• Power Supply:
  • The 24V DC power supply must be capable of providing a turn-on inrush surge current of 14 A for 5 ms for each adapter that is connected to this supply.
• Power Supply Voltage: 19.2…31.2V DC, 400 mA
• DeviceNet Power Requirements (Max):
  • 24V DC (±4%) at 90 mA
  • DeviceNet power supply voltage: 24V DC, 90 mA, Class 2
• Flexbus Output Supply Voltage: 5V DC, 640 mA
• Flexbus Output Current (Max): 640 mA @ 5V DC
• Input Voltage Rating: 24V DC nominal
  • 19.2…31.2V DC (includes 5% AC ripple)
• Current Draw (Max):
  • 400 mA, 300 mA @ 24V DC
• Communication Rate:
  • 125 KB, 250 KB, 500 KB
• Indicators:
  • Power: On/Off
  • Module/Network Status: Red/Green
  • I/O Status: Red/Green
• Isolation Voltage:
  • 50V (continuous), basic insulation type
  • Type tested at 1930V DC for 60 s (power to Flexbus, power to DeviceNet, and DeviceNet to Flexbus)
• Power Dissipation (Max): 7.6 W @ 19.2V DC
• Thermal Dissipation (Max): 26 BTU/hr @ 19.2V DC
• Dimensions (Approx.):
  • Height: 87 mm (3.4 in)
  • Width: 68 mm (2.7 in)
  • Depth: 69 mm (2.7 in)
• Weight (Approx.): 195.5 g (6.9 oz)
• Wiring Category:
  • Category 1: Power ports
  • Category 2: Communications ports
• Wire Size:
  • Power connections: 0.33…3.3 mm² (22…12 AWG) solid or stranded copper wire rated at 75 °C (167 °F) or greater
  • Insulation max: 1.2 mm (3/64 in.)
• Terminal Screw Torque: 0.8 N•m (7 lb•in)
• Enclosure Type Rating: None (open-style)
• Temperature Code:
  • North America: T4
  • UKEX/ATEX: T4
  • IECEx: T4