This section includes remote I/O modules that use Ethernet for connection to your computer or network. Sometimes referred to as I/O servers or I/O gateways, remote Ethernet I/O modules monitor temperature, volts or mA signals, and pass the measured values back to your master computer using Modbus TCP or other Ethernet based protocols such as Modbus TCP/IP, UDP, PROFINET, EtherNET/IP and EtherCAT. Digital status signals such as alarms or switches can also be monitored, while digital outputs can control pumps or other on/off devices.
In addition to monitoring and control of signals over Ethernet, extra features are provided depending on which model is selected. These may include peer-to-peer communications, on-board logic control and Active messaging. Distributed Ethernet I/O is especially useful for transmitting digital signals from one location to another without the need for a controller or PC