Rslogix 5000 16 ((top)) Instant
For true 16-bit logical operations (AND, OR, XOR, NOT), RSLogix 5000's bitwise instructions work natively on DINT (32-bit). To limit them to 16-bit behavior, the programmer must mask the upper 16 bits using a constant like 16#FFFF (65535 decimal).
For engineers working with legacy systems, understanding the specific capabilities unlocked in v16 is essential. This version introduced several quality-of-life improvements and functional upgrades that defined the user experience for years to come. rslogix 5000 16
This works because BOOLs in a standalone array are packed 32 per DINT but can be unpacked via COP into a 16‑BOOL array anchored at 16‑bit alignment. For true 16-bit logical operations (AND, OR, XOR,
: Define new tags in the Controller Tags "Edit Tags" tab, then specify the size under the "Dim 0" field. For true 16-bit logical operations (AND