Specifications

6 - 9
POINT
(1) When the networks are connected in a loop as shown in the figure below, be
sure to set the routing parameters so that the request is transmitted via the
same relay stations both for the "route from the request source to the request
designation" and the "route back from the request destination to the request
source."
Do not make a setting as the request circles the entire loop by both paths. The
relay station to be passed first in the return path from the request destination is
determined to the relay station that has been passed in the forward path; thus,
data cannot be transferred to a station beyond that relay station and an error
occurs.
Request
source
1
24
3
2
1
1
2
3
34
1
5
4
2
3
1
No.1
No.8
No.7
No.6
Request
destination
No.5No.4
No.3
No.2
C
B
A
A indicates the path from the request source
to the request destination.
B and C indicate the path from the request
destination to the request source.
Avoid path C when setting the return path.
(2) When sending data to a remote network by transient transmission using the
routing parameters, the data is transferred through many networks; thus, the
amount of transmission data and the number of transmissions may affect the
entire system.
For example, in network No. 2 to 5 in the figure above, the link scan time may
become temporarily longer and there may be delays in the transient
transmission of the own network because of the transient transmissions from
other networks.
When using the routing parameters, pay attention to the entire system.