Omega Engineering Universal Remote I/O Modules HE359 Series Universal Remote I/O Modules provide remote I/O for programmable logic controllers (PLCs). With remote I/O, the application is no longer dependent on controller choice.
• Fits in the smallest panels: 17.5 x 100 x 120 mm (0.69-in. x 3.94-in. x 4.72-in.); and • Has 12 I/O modules from which to choose, including dc in, relay out, analog in, analog out, RTD, thermocouple.
Remote I/O, or distributed I/O, offers several advantages over the traditional local I/O found on a programmable logic controller (PLC).
First, it allows locating the I/O modules close to the process that is being monitored or controlled. This greatly improves noise immunity, as the weak sensor signals are converted to digital signals before being transmitted long distances through a noisy plant environment. Omega universal remote I/O modules use a simple 2-wire RS-485 link using Modbus RTU/ASCII protocol, which is supported by most programmable logic controllers.
Full Story: Omega Engineering Universal Remote I/O Modules - Control Engineering
