Priority tasks interrupt lower priority tasks.
Logix controller, each task is assigned a priority level higher CompactLogix controllers use 32-bit operations with logicĮxecution based on based on tasks, programs and routines. Scan time can be roughly calculated based on logic program Scan Time:ġ6-bit architecture is based on executing logic contained in programįiles. Logix controller with at least 1Mb of memory. For migration purposes, 32K or less SLC programs For example, a full 32 KB SLC programĬonverted to a Logix program will consume approximately 360 KB in the Usage comparison, a good “rule of thumb” is to allow forĪpproximately 10-12x program size when converting from SLC-500 to Motion control via additional PLC modules Protocol) communication dependent on built-in portsĬontrolNet, DeviceNet, Data, Highway Plus, Remote I/O, Tag based data, supports local and global dataĭata table format emulation using Array tablesīlock Transfer read/write instructions (BTR/BTW)ĮtherNet/IP, DH+, DH-485, or RS-232 (DF1, ASCII, or DH-485 Logic organization and function based on tasks, programs and Relay ladder, Structured Text, Function block, SFC For an in-depth comparison, we will compare systemĪrchitecture, memory, scan time, I/O capability and power
Orders of magnitudes faster and more capable than the SLC-500 Scan times) over previous CompactLogix models. Significant performance improvements (+20% capacity and 5-20x faster In this post, we compare the SLC-500 family to the preferred migration product family, the CompactLogix processor.Īllen-Bradley released the CompactLogix 5380 controller it boasted Active Mature products are still fully supported however, you can gain value by migrating to a new product of family of products. The product line has reached Active Mature status, with many modules at End of life or discontinued. The Allen-Bradley SLC-500 product line was introduced nearly thirty years ago.
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