
4. CONNECTION CONNECTIONS B-61813E/03
−22−
In this way, using the AIF02C eliminates the necessity for the interface
unit (BIF04A1) for I/O Unit-B, which has conventionally been used
separately; this configuration is suitable for a small I/O Unit-B system.
Note the following points.
NOTES
1 The AIF02C cannot be used for base expansion.
2 The BIF04A1 can branch to a maximum of eight
communication lines.
The AIF02C can branch only to a maximum of two
distributed link cables.
4.6.2 Connection
(1) Connection diagram
[a] Configuration with two distributed link cables (note the
setting of the terminating resistor.)
CAUTIONS
1 Set the terminating resistor DIP switch to ON
2 Set the terminating resistor DIP switch to OFF.
[b] Connection with one Distributed Link cable (note the setting
of the terminating resistor.)
(From group n-1)
Groups n
and n+1
(To group n+2)
Distributed link
DI/DO unit
DI/DO unit
DI/DO unit
DI/DO unit
(From group n-1)
Groups n
and n+1
DI/DO unit DI/DO unit
DI/DO unit
DI/DO unitDI/DO unit
(To group n+2)
Distributed link