I've been teaching Logix and View introductory classes the last few days, and have to say I've been a little surprised how many people are not familiar with Rockwell's current generation of CompactLogix.
With that in mind, in today's article I'll cover the seven things you need to know about this line of small Logix processors:
Seven things you need to know about the current generation of CompactLogix
1) Now referred to as the 5370 family of CompactLogix processors
2) Only supported in version 20 and up
If you pan on using the current generation of CompactLogix, you'll need to choose a RSLogix 5000 / Studio 5000 version of 20 or higher.
3) USB port replaces DB9 Serial Port
Gone is the old DB9 serial port, replaced with a standard USB port that current versions of RSLinx find and configure automatically.
This virtually eliminates the need to configure RSLinx, and BOOT-P is no longer needed as you can set the Ethernet's port address by browsing to it through the USB port.
4) No more battery, replaced with capacitor
Gone is the expensive battery use for memory retention, as it has been replaced with a capacitor.
Now when the processor is powered off, the capacitor powers the transfer of the program from high speed volatile memory to internal non-volatile memory
5) SD Card used for non-volatile memory, 1gb included in box
Gone also are the days when you had to order removable non-volatile memory separately.
Today's CompactLogix comes with a 1gb industrial SD card for use as non-volatile memory, and with room to spare for all your project files.
6) Additional memory for new features
While we haven't seen much done with this yet, since version 21 it has been used to store all your offline documentation on-board the controller.
Future plans for this memory include a Controller based datalogging. However, no word lately on what version will include it (my guess is v26.)
7) Multi-core on the inside
Features of the future, like the previously mentioned controller based datalogging, may require more processing power than a single core can provide.
I hope this article about the 5370 CompactLogix was helpful!
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