Mitsubishi FX3UC Series User Manual

305
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.16 Data Link Processing Time
1
Outline
2
External Dimensions
3
Generic Specifications
4
Power Supply Specifications
5
Input Specifications
6
Output Specifications
7
Examples of Wiring for Various Uses
8
Terminal Block
9
CC-Link/LT Master FX
3UC
(LT only)
10
Display module FX
3UC
(LT only)
9.16 Data Link Processing Time
This section explains the link scan time and transmission delay time.
9.16.1 Link scan time
This paragraph explains the link scan time for the CC-Link/LT network.
1. Calculation formula
Link scan time[µs] = a + (b × N) × c
1) a: Constant
Depends on the transmission speed
2) b: Constant
Depends on the transmission speed and point mode
3) c: Constant
Depends on the transmission speed
4) N: Final station number
As shown in the formula above, if the number of stations is held constant, the link scan time is
shorter in 4-point mode than in 16-point mode.
2. Graph
Transmission speed 2.5Mbps 625kbps 156kbps
Value a
4-point, 16-point
mode
22 88 353
Transmission speed 2.5Mbps 625kbps 156kbps
Value b
4-point mode 46 41 37
16-point mode 76 71 67
Transmission speed 2.5Mbps 625kbps 156kbps
Value c
4-point, 16-point
mode
0.4 1.6 6.4
0 204060
Number of
stations
0
0.5
1.0
1.5
2.0
2.5
16-point mode
4-point mode
Link scan time (ms)
Link scan time (at 2.5 Mbps)

Mitsubishi FX3UC Series Specifications

General

Brand	Mitsubishi
Model	FX3UC Series
Category	Controller
Language	English