Tips for Allen-Bradley instrument panel Design
DMC has extensive experience programming, commissioning, and designing control panels with Allen-Bradley hardware. During the planning process, we will help guide hardware selection and make sure that each component is wired properly, taking advantage of Rockwell controls features.
This blog highlights a number of our favourite Allen-Bradley hardware and the way to use it.
ControlLogix
When working with ControlLogix, remember there are different communication modules counting on the model. the newest ControlLogix PLCs (5800 series) have embedded EtherNet/IP Ports where the previous designs (5700 series) didn't . due to this, an older model may have additional communication cards added, which could lead on to losing a slot where you'd want a further module.
It is important to think about future expansions when choosing the rack/chassis size. Expanding to additional chasses would require another power supply, communication module, and chassis.
Further, always remember to see all IO or communication modules to form sure they're close enough to an influence supply. In our designs, we attempt to place communication modules closest to the PLC and Power supply.
ControlLogix 5580 controllers
L16 through L27 CompactLogix PLCs have some embedded IO which makes them ideal for replacing MicroLogix PLCs. They also allow you to feature expand their IO with additional modules. However, the L16, L18, and L19 series require 1734 IO Modules, which are POINT I/O.
The L30 and above use the quality CompactLogix 1769 series IO modules, and don't include any embedded IO.
IO Selections
POINT I/O modules are our favorite to use for remote IO and for PLC panel IO due to their simplicity. it's important to recollect to place both the modules themselves and therefore the base modules, within the BOM. you'll wire devices into the bottom modules, and since they're separate items, making changes are often very easy.
It is good practice to remember of the facility consumption and therefore the number of cards. this may help determine if you would like to feature a 24V power extension to your rack. I mention similar concepts within the ET200SP IO section of my Siemens instrument panel design blog.
Whatever you select to pick for IO options, i might recommend using Rockwell’s Integrated Architecture Builder and Proposal Works to assist you select your equipment. It helps us choose IO modules, and helps confirm I included the terminal bases.
Upgrading from MicroLogix or SLC500
If you're considering upgrading from MicroLogix or SLC500, there are many various things to guage before making the choice . These metrics include the amount of tags, amount of programming (rungs and routines), amount of IO, sort of IO, the quantity of networking and networked devices, and software requirements.
Some recommendations for upgrading include:
The Micro800 series PLCs are an excellent option for replacing smaller MicroLogix PLCs
The CompactLogix smaller series with embedded IO are an excellent option for replacing larger MicroLogix PLCs
The CompactLogix larger series are an excellent option for replacing smaller SLC500 PLCs
ControlLogix should be wont to replace large SLC500 PLCs
For More Info :-Allen-Bradley 1769-IF8