A-10 Series 90-30/20/Micro Programmable Controllers Reference Manual – September 1998 GFK-0467K
A
Instruction Sizes for 350 and 360 Series CPUs
Memory size is the number of bytes required by the instruction in a ladder diagram application
program. 350 and 360 Series CPUs require three (3) bytes for most standard boolean functions—
see Table A-2.
Table A-2. Instruction Sizes for 350 and 360 Series CPUs
Function
Size
No operation 1
Pop stack and AND to top 1
Pop stack and OR to top 1
Duplicate top of stack 1
Pop stack 1
Initial stack 1
Label 5
Jump 5
All other instructions 3
Function blocks—see Table A-1 –
Boolean Execution Speed
The execution times of coils and contacts are shown below. These times represent the time used for
each coil or contact in your RLD program.
Table A-3. Boolean Execution Speeds
Model 350 and 360 Series 0.22 milliseconds per 1,000 boolean
contacts/coils
Model 340/341 0.3 milliseconds per 1,000 boolean
contacts/coils
Model 331 0.4 milliseconds per 1,000 boolean
contacts/coils
Model 313/323 0.6 milliseconds per 1,000 boolean
contacts/coils
Model 311 18.0 milliseconds per 1,000 boolean
contacts/coils
