New Ethernet I/O Simplifies Interfacing Discrete Sensors and Actuators to Monitoring/Control Systems

A USB port provides an easy connection to a PC for fast configuration and setup with free Windows software. Two models offer sixteen digital I/O channels supporting any combination of inputs and outputs for monitoring or control functions involving discrete devices (on/off, high/low, open/close). The XT1110 and XT1120 have sinking or sourcing outputs, respectively, and read-back capability to verify the status. Suitable for use in harsh environments, modules operate from -40 to 70°C with noise immunity and surge protection. CE and UL/cUL Class 1 Division 2 Zone 2 hazardous location approvals are pending. All units are attractively priced at $320 in US or only $20 per channel.

“The BusWorks XT Series implements many new technologies for easier installation and superior performance. Innovative packaging adds convenience while the Ethernet interface leverages Innovasic’s PriorityChannel technology for increased reliability,” explained Don Lupo, process group sales and marketing director. “PriorityChannel ensures critical data are received regardless of network traffic.”

Each model offers a choice of Ethernet/IP, Modbus TCP/IP, or Profinet protocols. Peer-to-peer i2o communication is also supported. Dual 10/100 Ethernet ports allow daisy-chaining units together to simplify cabling and minimize the network switches required, thus reducing overall system costs.

The sixteen channels on each unit are configurable for any mix of I/O. Inputs accept 0-32V DC discrete level signals with TTL thresholds. Outputs provide 0-32V DC open-drain discrete level control signals that are either sinking (up to 250mA) on the XT1110 or sourcing (up to 250mA) on the XT1120. All units run off a 12- 32V DC power source (2.5W) at the terminals or through an integrated power connector bussed along the DIN rail that can provide primary or redundant power.

For more dependable communication, BusWorks XT units employ Innovasic PriorityChannel technology which makes certain that critical data is received on time regardless of traffic on the network. PriorityChannel provides determinism at the device for consistent transmission of time-sensitive data with any of the Ethernet protocols.

Many other features add greater flexibility and performance. Built-in 10K ohm pull-up resistors facilitate use with 2/3-wire sensors such as contacts, proximity, or TTL devices. The configuration software enables selection of normal or reverse input logic. For reliability, a continuously changing “heart-beat” register validates module operation. Watchdog timer control of failsafe outputs further enhances dependability..