Omron 3G8F7-CRM21, User Manual

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163
CompoNet Network Specifications
Section E-1
In Data Rate of 3
Mbps
* This is the maximum number of Slave and Repeater Units that can be
connected to a branch line through the use of multidrop connections or T-
branch connections. The purpose of T-branching here is to have a sub-
branch line.
In Data Rate of 1.5
Mbps
*1 This is the maximum number of Slave and Repeater Units that can be
connected to a branch line through the use of multidrop connections or T-
branch connections. The purpose of T-branching here is to have a sub-
branch line.
*2 The trunk line does not support T-branch connections. The trunk line and
sub-trunk lines support only multidrop connections.
Item Round cable I or II Flat Cable I or II
Length of a trunk line or a sub-
trunk line (Maximum length when
two Repeater Units are used) 30 m (90 m) 30 m (90 m)
Length of a branch line 0.5 m 0.5 m
Total length of branch lines 8 m 8 m
Branching restriction 3 branches / m 3 branches / m
Number of connectable Units and
Units per branch line * 1 1
Maximum length of a sub-branch
line Not allowed Not allowed
Total length of sub-branch lines Not allowed Not allowed
Number of connectable Slave and
Repeater Units altogether per
trunk line or sub-trunk line 32 32
Item Round cable I Round cable II, Flat
Cable I or II
Without
branch
lines
With
branch
lines
Length of a trunk line or a sub-
trunk line (Maximum length when
two Repeater Units are used) 100 m
(300 m) 30 m (90
m) 30 m (90 m)
Length of a branch line Not
supported
*2 2.5 m 2.5 m
Total length of branch lines Not
supported
*2 25 m 25 m
Branching restriction
−
3
branches /
m 3 branches / m
Number of connectable Units per
branch line *1 3 3
Maximum length of a sub-branch
line Not
supported 0.1 m *3
Total length of sub-branch lines Not
supported 2 m
Number of connectable Slave Units
and Repeater Units altogether per
trunk line or sub-trunk line 32 32 32