Description

The 1794-OE4 is a FLEX I/O High-Density Analog Module by Allen-Bradley and Rockwell Automation. It has 4 single-ended, non-isolated outputs and a maximum output current of 0?20 milliAmps. This hardware has a nominal external DC power supply of 24 Volts DC.

• Wire Size: Determined by installed terminal base
• External DC supply, nom: 24V DC
• Indicators: 1 green/red power/status indicator
• Terminal base: 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS, and -TBN
• Conversion Rate: 1.024ms maximum all channels
• Output type: 0 to 20 mA; 4 to 20 mA; +/- 10VDC; 0 to 10 VDC
• No. of inputs: Four (4) Single Ended
• Product Description: Flex IO High Density Analog Output Module
• External DC supply range: 10.0…31.2V DC (includes 5% AC ripple)
• Mounting: DIN Rail
• Operating Temperature: 0 to 55 C (32 to 131 F)
• Storage Temperature: –40…85 °C (–40…185 °F)
• Resolution: 12 bits plus sign Voltage: 2.56mV/cnt Current: 5.13µA/cnt
• Data Format: left justified, 16 bit 2s complement
• Conversion Type: Pulse Width modulation
• Vibration: 5g @ 10 to 500 Hz
• Part Number/Catalog: No. 1794-OE4
• Product Type: Flex I/O Output Analog Module
• Outputs: 4 Single-ended
• Output Current Terminal: 4 to 20 mA
• Output Voltage Terminal: +/- 10 Volts
• Current Load on Voltage Output: 3 mA maximum
• Flexbus Current: 20 mA
• Power Dissipation: 4.5 W at 31.2 Volts DC maximum
• Thermal Dissipation: 13.6 BTU/hour at 31.2 Volts DC maximum

The 1794-OE4 is a FLEX I/O High-Density Analog Module by Allen-Bradley and Rockwell Automation. It has 4 single-ended, non-isolated outputs and a maximum output current of 0…20 milliAmps. This hardware has a nominal external DC power supply of 24 Volts DC. The 1794-OE4 has a nominal output voltage range of +/- 10 Volts and a maximum voltage output current load of 3 milliAmps. This hardware has approximate dimensions of 45.7 x 94.0 x 53.3 millimeters, or 1.8 x 3.7 x 2.1 inches. No calibration is required for this device and it has an external DC power supply voltage range of 19.2 to 31.2 Volts DC. The FlexBus current for this device is 70 milliAmps and it’s isolation voltage is 50 Volts continuous. Maximum power dissipation is 4.0 Watts at 31.2 Volts DC. The 1794-OE4 has a maximum thermal dissipation of 13.6 British Thermal Units (BTU) per hour at 31.2 Volts DC.

Environmental specifications include an operating temperature between 0 and 55 degrees Celsius and a nonoperating temperature between -40 and 85 degrees Celsius. Relative humidity is 5% to 95%, non-condensing and it’s vibration rating is 5 g at 10…500 Hertz. Operating shock rating is 30 g and non-operating shock is 50 g. This hardware has an emissions rating compliant with CISPR 11: Group 1 Class A. ESD immunity on this module is compliant with IEC 61000-4-2 and radiated RF immunity is compliant with IEC 61000-4-3; EFT/B immunity is compliant with IEC 61000-4-4. Conducted RF immunity is compliant with IEC 61000-4-6 and surge transient immunity compliant with IEC 6100-4-5.