Acromag Inc., Wixom, MI, offers its EtherStax ES2161 and ES2162 Ethernet I/O blocks for distributed I/O and SCADA applications. The blocks accept 32 differential DC current or voltage inputs, respectively, and interface the signals to Ethernet devices or controllers with Modbus TCP/IP or UDP/IP protocol communication. The ES2162 units accept signals from the company's 8B signal conditioning module racks through two DB25 ports to monitor a variety of sensors including temperature, frequency, and load cells. The ES2161 accepts ±20 mA, 0–20 mA, or 4–20 mA DC input ranges and ES2162 units accept ±5 V or ±10 V.
Ethernet I/O System from Acromag