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Omega Engineering Universal Remote I/o Modules - Control Engineering
Omega Engineering Universal Remote I/O Modules - Control Engineering
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.
PLC is designed to replace a circuit relay sequential in a control system. In addition to programmable, this tool can also be controlled, and operated by people who do not have knowledge in computer operation in particular.
PLC stands for programmable logic controller, which has the following meaning:
1.Programmable
demonstrate ability in terms of memory to store programs that have been made that easily altered function or usefulness.
2.Logic
demonstrate the ability to process input in the arithmetic and logic (ALU), which compares the operation, add, multiply, divide, subtract, negation, AND, OR, and so forth.
3.Controller
demonstrate the ability to control and manage the process to produce the desired output.
The basic elements of a PLC consists of a Power supply, Programming Console, Memory, CPU, input modules, output modules. following we describe each of these elements.
Power supply is used to provide power supply to all parts of the PLC (including CPU, memory, etc.). Most PLC work on the power supply 24 VDC or 220 VAC.
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