2 System Configuration
2.2 Connection with PLC
21
FX
3U
-20SSC-H Positioning Block User's Manual
1
Int
roduct
ion
2
Sy
stem
conf
igur
ati
on
3
Exam
ple
C
onnect
ion
4
Ins
tall
a
tion
5
Wi
rin
g
6
Me
m
o
ry
confi
gur
at
ion
and da
ta
7
Befor
e
star
ting
positi
oning
contr
o
l
8
M
anual c
ont
ro
l
9
Posit
ioni
ng
C
ont
rol
10
Table O
per
at
ion
2.2
Connection with PLC
20SSC-H connects with PLC via extension cable.
The 20SSC-H is handled as a special extension block of the PLC. The unit number of the 20SSC-H is
automatically assigned No.0 to No.7
*1
starting from the special function unit/block closest to the PLC main
unit. (This unit number is used for the designation of a FROM/TO instruction.) For details on assignment of
the I/O number and unit number of the PLC, refer to the following manual corresponding to the connected
PLC.
*1.
When connecting to the FX
3UC
-32MT-LT(-2), the unit number is No. 1 to No. 7.
→
FX
3U
Hardware Edition
→
FX
3UC
Hardware Edition
• The maximum number of 20SSC-H connectable to one PLC shows below.
*2.
An FX
2NC
-CNV-IF or FX
3UC
-1PS-5V is necessary to connect the 20SSC-H with the FX
3UC
PLC.
• The optional FX
0N
-65EC (FX
0N
-30EC) and FX
2N
-CNV-BC are necessary to lengthen the extension cable.
• The number of I/O points occupied by the 20SSC-H is eight. Be sure that the total of the number of I/O
points (occupied I/O points) of the main unit, power extension unit and extension block and the number of
points occupied by the special function block does not exceed the maximum number of I/O points of the
PLC.
For the maximum number of I/O points of the PLC, refer to the following manual.
→
FX
3U
Hardware Edition
→
FX
3UC
Hardware Edition
2.3
Applicable PLC
The version number can be checked by monitoring the last three digits of D8001.
*3.
An FX
2NC
-CNV-IF or FX
3UC
-1PS-5V is necessary to connect the 20SSC-H with the FX
3UC
PLC.
Connected PLC
Maximum number of
connectable units
FX
3U
Series PLC
8 units
FX
3UC
Series PLC
*2
FX
3UC
(D,DS,DSS)
8 units
FX
3UC
-32MT-LT, FX
3UC
-32MT-LT-2
7 units
Model name
Applicability
FX
3U
Series PLC
Ver. 2.20 (from the first product) and later
FX
3UC
Series PLC
*3
FX
3UC
(D,DS,DSS) Series PLC
Ver. 2.20 (from products manufactured in May, 2005) and later
FX
3UC
-32MT-LT,
FX
3UC
-32MT-LT-2
POWER
MOTOR-Y
START
DOG
INT0
INT1
A
B
X-READY
Y-READY
X-ERROR
Y-ERROR
START
DOG
INT0
INT1
A
B
MOTOR-X
POWER
MOTOR-Y
START
DOG
INT0
INT1
A
B
X-READY
Y-READY
X-ERROR
Y-ERROR
START
DOG
INT0
INT1
A
B
MOTOR-X
FX
3U
Series PLC
FX
3UC
Series PLC
FX
3U
-
20SSC-H
FX
2NC
-CNV-IF
FX
3U
-
20SSC-H
FX
3U
-
20SSC-H
FX
3U
-
20SSC-H
POWER
MOTOR-Y
START
DOG
INT0
INT1
A
B
X-READY
Y-READY
X-ERROR
Y-ERROR
START
DOG
INT0
INT1
A
B
MOTOR-X
POWER
MOTOR-Y
START
DOG
INT0
INT1
A
B
X-READY
Y-READY
X-ERROR
Y-ERROR
START
DOG
INT0
INT1
A
B
MOTOR-X