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O
PEN
N
ET
C
ONTROLLER
U
SER
’
S
M
ANUAL
24-1
24: R
EMOTE
I/O S
YSTEM
Introduction
The
OpenNet Controller
uses the INTERBUS open network to set up a remote I/O system. Input data from a remote I/O
slave station is stored to link registers allocated to input data in the
OpenNet Controller
. Output data is sent from the link
registers allocated to output data in the
OpenNet Controller
. A remote I/O slave station can have a maximum of 128 I/O
points (64 inputs and 64 outputs). When using 32 IDEC’s SX5S modules with 16 input or output points, a total of 512 I/O
points can be distributed to 32 remote slave stations at the maximum. The total cable length can be 12.8 km (7.95 miles)
maximum. For the remote I/O master module parts description and specifications, see page 2-36.
Since I/O data is stored in link registers and transferred automatically, no communication program is required to send and
receive I/O data between the master and slave stations. I/O connection is just as easy as ordinary digital I/O connection.
Remote I/O System Setup
For wiring INTERBUS cable, see page 24-15.
AB
G
RS485
COM
A
B
Z
HSC
OUT
+24V
0V
POWER
RUN
ERROR
HSC OUT
V.24 Interface
REMOTE OUT
idec
REMOTE OUT
REMOTE IN
REMOTE OUT
REMOTE IN
UL
RC
BA
ER
RD
SX5S
INTERBUS
REMOTE OUT
REMOTE IN
REMOTE OUT
REMOTE IN
UL
RC
BA
ER
RD
SX5S
INTERBUS
REMOTE OUT
REMOTE IN
REMOTE OUT
REMOTE IN
UL
RC
BA
ER
RD
SX5S
INTERBUS
Total Cable Length
400m
×
32 = 12.8 km (7.95 miles) maximum
Node 0
Node 1
Node N (N
≤
31)
Remote I/O Slave Stations
IDEC’s SX5S Communication I/O Terminals for INTERBUS.
Other vendor’s INTERBUS slave modules (remote bus sta-
tions) are also applicable. 64 input and 64 output points
per slave station at the maximum.
Remote I/O Master Module
FC3A-SX5SM1
Remote I/O Master Station
D-sub 9-pin
Male Connector
D-sub 9-pin
Female Connector
INTERBUS Cable
Cable Length 400m (1312 ft.) maximum
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]