Allen-Bradley MicroLogix 1200 Reference Manual page 352

A-6 MicroLogix 1200 Memory Usage and Instruction Execution Time
Publication 1762-RM001C-EN-P
Execution Time Example – Word Level Instruction Using and Indirect Address
ADD Instruction Addressing
• Source A: N7:[*]
• Source B: T4:[*].ACC
• Destination: N[*]:[*]
ADD Instruction Times
• ADD Instruction: 2.7 µs
• Source A: 5.8 µ s
• Source B: 6.5 µ s
• Destination: 24.5 µ s
Total = 36.5 µ s
Execution Time Example – Bit Instruction Using an Indirect Address
XIC B3/[*]
• XIC: 0.9 µ s + 5.8 µ s = 6.7 µ s True case
• XIC: 0.9 µ s + 5.8 µ s = 6.7 µ s False case