The Allen-Bradley 1794-ACNR15K module is a Flex I/O ControlNet adapter module. The 1794-ACNR15K module comes with a conformal coat to meet requirements of environments that contain noxious gases. The 1794-ACNR15K module has capacity of 8 I/O modules. The input voltage range is 19.2 to 31.2 Volts DC (including a 5% AC ripple) with the value of the nominal input being 24 Volts DC. The current draw of the 1794-ACNR15K module is typically 330 milliamps at 24 Volts DC and it can go up to a maximum value of 450 milliamps. The inrush current for the module is 23 Amps for up to 2 milliseconds. The ControlNet data rate supported by the 1794-ACNR15K module is 5 Mbps. There are 3 indicators on the module: 1 for the I/O status, 1 for the Communication Port A status, and 1 for the Communication Port B status.

The Flexbus output current rating is a maximum of 640 milliamps. The isolation voltage for the module has been tested at 850 Volts DC for 1 second between the flexbus and the power source. The peak power dissipation for the 1794-ACNR15K module is 4.6 Watts at 19.2 Volts DC. The recommended terminal screw torque is 0.8 N-m. The dimensions of the 1794-ACNR15K module are 3.4 x 3.7 x 2.7 inches. The operating temperature range is 32 to 131 degrees Fahrenheit and the storage temperature range is -40 to 185 degrees Fahrenheit. The Belden RG-6/U cable should be used for ControlNet communication. This cable should only be connected or disconnected when the module power is off. The 1794-ACNR15K module is certified by the UL, CSA, CE, and EEx standards. The enclosure of the 1794-ACNR15K module is open.