The PLC 1794-OB8EP is a 1794 FLEX Digital DC Output Module. It is an Electronic Fuse (EP) module which acts to disconnect the output if a fault occurs. The 1794-OB8EP is fitted inside the terminal bus, making a connection with the field devices and the I/O bus. Modules can be inserted or removed under power since the I/O module does not have any direct wiring. It in turn saves time and removes system restarting inefficiency.
The 1794-OB8EP module has 8 current sourcing outputs. It has 24V DC nominal On-State output voltage, 19.2 – 31.2V DC On-State output voltage, and 2A per channel with 10A per module maximum On-State output current. It has a maximum output delay time of 0.1ms from Off-to-On and vice versa. It has a maximum power dissipation of 5.5W at 31.2V DC. Terminal Base units compatible with it are the 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, and the 1794-TBKD. The 1794-OB8EP has an external power supply of 19.2 - 31.2V DC voltage with a 5% AC ripple and 20 - 35mA current. It is installed using a DIN rail by simply snapping it onto the DIN rail. It has various communication options such as ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O.
