The / Automation 1794-IB16XOB16P Module is a Flex I/O DC Input/Output Module.  This open-style module has a 16-point 24 Volts DC sinking input, a 16-Point 24 Volts DC sourcing output, and a 24 Volts DC power supply. It is a programmable logic controller module that is electronically protected and has an IP 20 NEMA rated enclosure and a maximum wattage rating of 125 Watts. The 1794-IB16XOB16P Module requires only a standard network card to access data from the PLC master device via the Ethernet LAN. It connects to an AC500 series PLC and peripheral equipment and it is located in a central control room.  The PLC master device data is transmitted from I/O receiving data, it performs correlation processing and control, and the industry-standard Ethernet TCP/IP communication module (TB521ETH-) transfers it to industrial control computers at a transfer rate of 10 Mbit/m.

The 1794-IB16XOB16P Module's central processing unit (CPU) consists of a controller, an arithmetic module, and a chip register. The CPU is connected to the memory, the I/O interface, the programmer, and the power supply via a data bus, an address bus, a control bus, and a power bus. The 1794-IB16XOB16P module can be used in 2-wire systems and 4-wire systems and in single-ended and differential modes. Each channel in the software can be configured. To connect to a computer on the ABPLC hardware, first, determine the proper PLC CPU model and then determine the PLC's current network status, since  software supports multiple ways of connecting to the CPU. After the development platform has been developed, the users need to set up the I/O and then they can assign a number to the CPU based on each module's physical address.