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.
HE359 Series Universal Remote I/O Modules provide remote I/O for programmable logic controllers (PLCs). Omega Engineering HE359RTD100:
• Connects via 2-wire RS-485 Modbus (RTU or ASCII) to any programmable logic controller (PLC);
• Offers up to 31 I/O modules daisy-chained on one RS-485 link;
• Is DIN-rail mountable;
• Has optical isolation;
• Includes response time suitable for most analog applications;
• Has cost effective addition per point;
• 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.
A second advantage is that remote I/O greatly reduces the wiring at the main control panel, saving time and money when repairs and upgrades are necessary. Adding additional sensors and control signals is as easy as connecting to the already installed RS-485 link and modifying the PLC program to use the new I/O connection.
In addition, remote I/O allows expansion of a process control system beyond the local I/O capabilities of your PLC. You can add thermocouple, RTD, pressure, and flow sensors to a PLC that doesn't support these types of inputs. With remote I/O, your process application is no longer dependent on your controller choice. www.omega.com/ppt/pptsc.asp?ref=HE359&nav=AUTW01
- Edited by Mark T. Hoske, editor in chief, Control Engineering , www.controleng.com.
Case Study Database
Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.
Annual Salary Survey
In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.
Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.