IDEC MICROSmart FC6A Series User Manual page 156

2: P S
RODUCT PECIFICATIONS
1. I/O data refresh time of node 0
I/O data refresh time = 8 × 0.68 ms + 5 × 0.08 ms + 4 × 0.29 ms + 2 × 0.58 ms + 2 × 1.09 ms + 18 × 0.08 ms + 28 × 0.29 ms
2. I/O data refresh time of node 1 and subsequent nodes
I/O data refresh time = 22.22 ms + { 7 × 1.2 ms + 32 × 0.3 ms + 11 × 0.04 ms + 9 × 0.17 ms + 4 × 0.34 ms
Notes:
The scan time is the time duration for executing one cycle of the user program that is cyclically executed.

The scan time can be checked with special data register D8023 (Scan Time Current Value (ms)).

2-126
+ 4 × 0.58 ms + scan time
= 22.22 ms + scan time
+ 7 × 0.08 ms + 19 × 0.29 ms + 0 × 0.58 ms + 5 ms } ÷ 2 + scan time
= 38.42 ms + scan time
FC6A S MICROS
ERIES MART
U ' M FC9Y-B1722
SER S ANUAL