Overview

The FLEX I/O module connects to the I/O bus and field devices via the terminal base. There is no direct wiring to the module, allowing it to be inserted or removed under backplane power. This feature enables module changes without disturbing field wiring, other I/O modules, or FLEX backplane power.

Specifications

• Number of Outputs: 4 single-ended, nonisolated
• Indicators: 1 red/green power/status indicator
• Flexbus Current (5V DC): 15 mA
• Output Conversion Type: Pulse Width Modulation (PWM)
• Output Conversion Rate: 1.024 ms (for all channels)
• Step Response to 63% of Full Scale Output: 24 ms
• Calibration: Factory calibrated
• Load on Output Voltage: 3 mA max
• Load on Output Current: 15 to 750 Ω
• Power Dissipation (Max): 5.62 W at 31.2V DC
• Thermal Dissipation: 19.2 BTU/hr at 31.2V DC
• Terminal Base Screw Torque:
  • 0.8 Nm (7 lb-in.)
  • 1.0 Nm (9 lb-in.) for 1794-TBN
• Wire Type: Shielded
• Wire Size (Power Connections): Determined by installed terminal base
• Dimensions (Approx.):
  • Height: 46 mm (1.8 in.)
  • Width: 94 mm (3.7 in.)
  • Depth: 53 mm (2.1 in.)