Yaskawa AC Servo Drives Sigma II Series DeviceNet - Manual (Page 25)

E-22
„ Total Drop Line Length
The total drop line length is a total of all drop line lengths.
Length Limits
The total drop line length must be within the allowable range and even then, each drop line
must be 6 m or less.
The allowable range of total drop line length varies with the baud rate as shown in the fol-
lowing table.
The following example is for a baud rate of 500 Kbps.
The above example must satisfy the following conditions.
• a ≤ 6 m
• b ≤ 6 m
• c ≤ 6 m
• d ≤ 6 m
• d+f ≤ 6 m
• d+e+g ≤ 6 m
• d+e+h ≤ 6 m
The total drop line length must satisfy the following condition.
• Total drop line length = a+b+c+d+e+f+g+h ≤ 39 m
Baud Rate (Kbps) Total Drop Line Length (m)
500 39 max.
250 78 max.
125 156 max.
T-Branch Adapter
(with terminator)
Trunk line
Drop line
T-Branch Adapter
T T
T
T
Terminator
Node
a b c d
e
f
g h
Node Node
Node Node
Node
Node Node