In this article, I will discuss the types of Allen Bradley PLC used from smaller applications to higher ones.
While designing a control system it is important to know about the PLC type you require.
The larger the project is, the higher end PLC requires to fulfill needs.
There are three types of PLC you can use,
These three types of PLC have the capability of handling the process. They are greatly differentiated by their software, expansion module limitation, memory space, and communication protocol.
This type of PLC is used for the small control system.
We can use where less I/O’s is required.
Cost-effective solution for small-scale applications.
Use rslogix500 software for the programming.
It comes with fixed I/Os (onboard I/O).
No physical rack is required. The input and output cards are connected using a ribbon cable.
The supported communication port is RS-232/485, an Ethernet port.
The controller supports 32 discrete I/O points and 6 analogs I/Os.
It comes with an LCD display.
This type of PLC is used for the medium control system.
This type of PLC is used in machine control and packing system.
It comes with an inbuilt I/O system (onboard I/O).
We can use an expansion module to add additional I/Os, but there is a limitation of an expansion.
Rslogix 5000 software is required for the programming.
No physical rack is required.
The supported communication protocol is Ethernet, ControlNet, DH-485, RS 232, Modbus.
The controller supports 30 I/o modules and 16 motion axes.
No LCD display.
This type of PLC is used for a large control system.
This is also known as modular PLC as it uses separate I/O modules.
These types of PLC are used in processing, batching, and in a motion control system.
Rslogix 5000 software is required for programming.
It uses rack-based I/O modules.
Supported communication protocol are EtherNet/IP, ControlNet, DeviceNet, DH+.
The controller supports 32 points per module for digital I/O. For analog I/o it supports RTD and Thermocouple modules. Cn support 16 channel module.
No LCD display.
Apart from all the above mention things, there are some similarities between compact and Control Logix.
Both use a symbolic name, can create user-defined data types in both types of the PLC.
Both use Ethernet/IP, DeviceNet, ControlNet, DH communication protocol to transfer data.
Both require rslogix5000 software.
Still, anything misses out here? Then share your thought in the comment section.
Author: Suhel Patel
If you liked this article, then please subscribe to our YouTube Channel for PLC and SCADA video tutorials.
You can also follow us on Facebook and Twitter to receive daily updates.
Read Next:
PLC ladder logic design to control 3 motors with toggle switch and explain the program…
VFD simulator download: Master the online tool from the Yaskawa V1000 & programming software for…
The conveyor sorting machine is widely used in the packing industries using the PLC program…
Learn the example of flip-flop PLC program for lamps application using the ladder logic to…
In this article, you will learn the STAR DELTA programming using PLC controller to start…
Lube oil consoles of rotary equipment packages in industrial process plants are usually equipped with…
View Comments
6
Good evening, sir,
I write to make enquiry of the prices of PLC PRODUCTS.
I am an Electrical Engineering student from Nigeria. I need a small size PLC for programming. What are the prices of small size PLC products or what advice can you give me on getting a small size PLC Products for building projects?
I await your apt reply graciously.
Thank you.
Sunday Ayeomoni
You have a very small project, you can use the Siemens LOGO!8 PLC.
Part No. - 6ED1052-1CC08-0BA1
Its got 12 Inputs and 4 Outputs.
You can additionally buy expansion modules.
Thanks
Abdi