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1794-OE12

Revisions: Ser A

Description:   The Allen-Bradley 1794-OE12 Flex I/O Analog Output Module has 12 Single-ended Outputs, a +/-10V Output Voltage Range, and a 0-20mA max. Output Current . It also operates with a 320 ?V/cnt Voltage Resolution and a 0.641 ?A/cnt Current Resolution.

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About 1794-OE12

The Allen-Bradley 1794-OE12 is a Flex I/O analog module. This module's data format is left justified and 16-bit 2's complement. This module comes with a green/red power/status on-indicator and a #4 keyswitch position indicator. Terminal base units compatible with this module are the 1794-TB3G, 1794-TB3GS, 1794-TB3GK, and the 1794-TB3GKS units. Note that this module is not supported by the 1747-SN or the 1747-BSN for use on an RIO device with SLC controllers. No further calibration is required for the 1794-OE12 module since it has been factory-calibrated already. It measures 3.7 x 3.7 x 2.1 inches and has an open-style enclosure. It can be mounted using a DIN rail mount.

The 1794-OE12 module will have an output of 0 mA until it has been configured. After configuration, the output signal ranges are 4-20 mA and 0-20 mA, both of which are user-configurable. Its nominal output voltage range is from -10-10V. This module has an mA output resistive load of 0-750 Ω at 24V DC and a maximum voltage output current load of 3 mA. Its current resolution is 0.641 µA/cnt and its voltage resolution is 320 µV/cnt. The nominal external DC power supply of this module is 24V DC and the external DC power supply voltage range is from 10-31.2V DC, including the 5% AC ripple. This module has external DC power supply currents of 720 mA at 10V DC and 320 mA at 24V DC. The 1794-OE12 module also has a FlexBus current of 80 mA and a continuous isolation voltage of 50V that has been tested at 850V DC for 60 seconds, particularly between the user power to the system.

The absolute accuracy for both the voltage and current terminals are 0.1% full scale at 25% each and the accuracy drift with temperature for both the voltage and current terminals are 0.004% full scale/ËšC each. The maximum power dissipations of this module are both 4W at 10V DC and 31.2V DC and 4.3 W at 24V DC and the maximum thermal dissipation is 4.7 BTU/hr at 24V DC. The operating temperature of this module is from -20-60 ËšC and the storage temperature is -40-85 ËšC. It also has a relative humidity of 5-95% which is non-condensing. This module also has an operating shock of 30 g, a non-operating shock of 50 g, and an operating vibration of 5 g at 10-500 Hz.

Technical specifications:

Part Number:1794-OE12
Product Type:Flex I/O Analog Output Module
Outputs:12 Single-ended
Output Voltage Range: +/-10V
Output Current :0-20mA max.
Voltage Output Current Load:3mA max.
Voltage Resolution:320 ?V/cnt
Current Resolution:0.641 ?A/cnt
Resistive Load, mA Output: 0750 ? @ 24V DC
Flexbus Current:80mA
Power Dissipation:4.0W @ 31.2V DC
Thermal Dissipation:4.7 BTU/hr. @ 24V DC

Please refer to the manual for more information about the 1794-OE12 such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-OE12 Ser A
1794-OE12/A, Series A, Rev A Request Quote

Common misspellings: 1794-0E12
l794-OE12
179A-OE12
1794-0E12
1794-OEl2
1794-OE12X
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