The EtherNet/IP and Modbus TCP/IP I/O modules, have a built-in network port eliminating the space and expense of a bus-coupler unit. Modules interface up to 12 analog or digital I/O signals directly to an EtherNet/IP network. Each module can operate independently of a bus-coupler or controller that typically handles network communication for modular block I/O systems, and is therefore able to deliver a more cost and space-efficient solution. No software is required as the set-up uses a standard Web browser to configure an embedded Web page. A 12-channel I/O solution would need only one inch of DIN rail space. The I/O modules provide a 3 way isolated EtherNet/IP 10/100 Mbps network interface. To ensure interoperability, units have passed the internationally recognised EtherNet/IP conformance tests established by the ODVA (Open DeviceNet Vendors Association).
Three I/O module types are available. The discrete I/O modules are ideal for on/off monitoring and control of industrial devices. Analog input modules convert DC voltage, current or temperature signals from sensors to the network. Analog output modules provide DC current or voltage control signals.
An internal microcontroller processes the I/O signals and directs all operations. Built-in watchdog timers continuously monitor network communications while self-diagnostic routines simplify maintenance and troubleshooting. A failsafe mode can also be set to ensure outputs are sent to a safe state if a failure occurs. LEDs indicate power, network activity, and individual channel status. Discrete I/O is offered on three models with a choice of 12 input channels, 12 output channels, or 12 individually selectable bi-directional input/output channels. Analog output models provide 0/4 to 20 mA output or 0 to 10 V d.c. voltage output signals. A range of Ethernet switches and Profibus modules is also available.
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