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How Far Can Programmable Automation Controllers Take Your Manufacturing?

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How Far Can Programmable Automation Controllers Take Your Manufacturing?

By: John Mitchell

If you have not already looked at programmable automation controllers (PAC) it is time that your manufacturing be updated with these fully capable automation devices. Programmable automation controllers have opened up the world of automation for manufacturing. It was not too ling ago that programmable logic controllers (PLC) were doing the tasks in manufacturing that required automation. Now is the time for programmable automation controllers to become the standard instruction controller for automating manufacturing.

The PLC set the stage for the PAC. As an early device for giving instructions to automation devices the PLC is limited in its capability by comparison. The PLC runs on a proprietary, closed network, and models its control of devices after a series of relay switches, using ladder logic as its foundation for control. With the push of technology along came the PAC, which opened the capabilities of automated manufacturing. The PAC gives manufacturing diverse protocols and standard hardware that can perform distributed processing in a multitasking environment. The PAC operates in multiple domains and utilizes open communications standards. This device is modular in design and will make data exchanges in multiple formats. It operates in a fully integrated development environment.

Programmable automation controllers are multifunctional, able to handle all the signal types that can be exchanged with automation applications, serial, analog, and digital. Information that is sent and received as text to and from devices such as keypads, test equipment, scanners and readers can be readily handled by any PAC. Digital signals such as on/off switch conditions are relayed and managed by a PAC. Analog signals like pressure levels, flow amounts, and temperatures are also handled. Crossing through all the standard domains on your manufacturing operation is standard practice for a PAC. Hardware attached to the device can collect data from remote equipment or machinery on the shop floor. Process control for any type of industry is a ready task performed by the PAC.

Programmable automation controllers utilize standard technology protocols and standard components. There is no need for specialized training for the operation of common networking hardware and software that are used with a PAC. Well accepted hardware such as network hubs and routers, and all the standard internet protocols, TC/IP, SNMP, SMTP, UDP, and FTP are used. Having the broad capability available for the automation controller gives the entire system a broader area of communication to mobile devices. Multitasking is a major ability of the PAC. Managers can be kept in communication with the automation operation through mobile devices that communicate with the PAC. While communicated with clients or vendors using one type of protocol, the PAC can also be running independent programs for the control of automation devices. It may also be involved in distributed processing that requires the PAC to interact with timing PID loops. This multitasking capability is all based on the processor or processors that are running in the PAC. The clock speed of these types of machines is very fast, so they can do a lot of stuff in a very short period of time.

The PAC is very modular, capabilities in the form of circuit boards can be added and subtracted from a unit at any time. Processing power can be added to a PAC that may have only one processor board in it, by adding one or more additional processing boards. Having this kind of ability in the device can help to optimize all functions and tasks that are under the control of the PAC. The cost of these types of additions to the PAC are minimal compared to the processing and production capability that is added to manufacturing. Modularity that can be added is built with standard interfaces so that boards from different vendors can be added with no difficulty. Monitoring a PAC is done through a software interface that is easily read and interpreted from a display screen attached to the PAC. Application development can be done through the user interface so that abilities can be added to the automation environment when they are needed.

Programmable automation controllers have opened the doors to full flexibility for manufacturing automation with standardized hardware and software. Using this flexibility gives manufacturers a low cost way to add full automation to their operations in a short period of time. Having this standardization spread to most customers and vendors gives communications to other companies an added boost, not to mention the ability to communicate in-house. Multiple processors give PAC's the ability to do any task that is assigned with speed without impacting other automation tasks that it is also doing. Even better the PAC has the ability to store all the information about the manufacturing process in databases for use later in analyzing production.

Article Source: http://articles.tiptopweb.info

John Mitchell is President of Provision, Inc, an online publisher of information about the effective use of automation in production and manufacturing. The company website is www.provinc.net.

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