Allen-Bradley 1794-OF4I Flex I/O Isolated Analog Output Module

Specifications

Resolution

• Voltage: 15 bits plus sign
• Current: 15 bits plus sign
• Voltage Conversion: 0.320 mV/cnt
• Current Conversion: 0.656 mA/cnt

Update Rate：2.5/5.0 ms for all channels

Output Configuration

• Current Output Terminal:
  • 0 mA output until module is configured
  • 4…20 mA (configurable)
  • 0…20 mA (configurable)
• Voltage Output Terminal:
  • 0V output until module is configured
  • ±10V (configurable)
  • 0…10V (configurable)
  • ±5V (configurable)
  • 0…5V (configurable)

Step Response to 63% of Full-Scale：< 25 µs

Current Load on Voltage Output (Max)：3 mA

Resistive Load on Voltage Output：0…750 Ω

Absolute Accuracy

• Voltage Terminal: 0.1% full-scale @ 25 °C (77 °F)
• Current Terminal: 0.1% full-scale @ 25 °C (77 °F)

Accuracy Drift with Temperature

• Voltage Terminal: 0.0012% full scale/°C
• Current Terminal: 0.0025% full scale/°C

Environmental Specifications

Operating Temperature

• -20…+55 °C (-4…+131 °F)
  • IEC 60068-2-1 (Test Ad, Operating Cold)
  • IEC 60068-2-2 (Test Bd, Operating Dry Heat)
  • IEC 60068-2-14 (Test Nb, Operating Thermal Shock)

Surrounding Air Temperature (Max）：”55 °C (131 °F)

Non-Operating Temperature

• -40…+85 °C (-40…+185 °F)
  • IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold)
  • IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat)
  • IEC 60068-2-14 (Test Na, Unpackaged Nonoperating Thermal Shock)

Relative Humidity：5…95% non-condensing (IEC 60068-2-30, Test Db)

Vibration (Operating)：5 g @ 10…500 Hz (IEC 60068-2-6, Test Fc)

Shock (Operating)：30 g (IEC 60068-2-27, Test Ea)

Shock (Non-Operating)：50 g (IEC 60068-2-27, Test Ea)

Emissions：IEC 61000-6-4

ESD Immunity

• IEC 61000-4-2:
  • 6 kV contact discharges
  • 8 kV air discharges

Radiated RF Immunity

• IEC 61000-4-3:
  • 10V/m with 1 kHz sine wave 80% AM from 80…6000 MHz

EFT/B Immunity

• IEC 61000-4-4:
  • ±2 kV @ 5 kHz on power ports
  • ±2 kV @ 5 kHz on shielded signal ports

Surge Transient Immunity

• IEC 61000-4-5:
  • ±1 kV line-line (DM) and ±2 kV line-earth (CM) on power ports
  • ±2 kV line-earth (CM) on shielded signal ports

Conducted RF Immunity

• IEC 61000-4-6:
  • 10V rms with 1 kHz sine wave 80% AM from 150 kHz…80 MHz