Data Link Processing Time; Link Scan Time - Mitsubishi MELSEC-Q Series User Manual

3 SPECIFICATIONS

3.7 Data Link Processing Time

3.7.1 Link Scan Time

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This section describes about the link scan time and transmission delay time.
The link scan time of the CC-Link/LT is explained as follows:
[Link scan time (LS)]
LS = a + (b x N) x c [ s]
a: Constant
b: Constant
c: Constant
N: Last station number
Transmission speed
a
4-point mode
b 8-point mode
16-point mode
c
Link scan time (At 2.5 Mbps)
2.5
2.0
16-point mode
8-point mode
4-point mode
1.5
1.0
0.5
0
0 20
2.5 Mbps 625 kbps
22
46
56
76
0.4
40 60
MELSEC-Q
156 kbps
88 353
41 37
51 47
71 67
1.6 6.4
Number of
stations
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