FATEK FBs-B2DA - Page 33

H3-2
on the main unit. Users can easily find each terminal with its I/O number and LED status indication, as shown in the
figure below using X10 and Y6 as an example:
24V OUT
CONTROLLER
PROGRAMMABLE
AC100~240V
IN
max.
400mA X5
C4C2C0
Y0
Y1
PORT0
Y3
Y2 Y4
TX RX
X1S/S
X0
X3
X2 X4
POW
3
I
20
C6
Y5
4
8
9
5
Y6
Y7
76
OUT Y
ERR
RUN
( )
Y8
Y9
I0
98
I2 I3
4
0
5
I
I I
( )
IN X
7
3
6
2
X7
X6 X8
X9
X10
X11
X13
X12
Y6
X10
FBs-24MCR2-AC
While the various expansion units/modules other than the main units have the same printed labels on the input/output
terminals as the main units do, these labels are only relative I/O numbers, different from the absolute I/O numbers on
main units. The number of a terminal only represents its order on the expansion unit/module. For example, the first
contact is X1 or Y1, the second X2 or Y2, etc. All numbers on the expansion unit/module begin with 1. The actual
number of digital input contact or the output replay, however, is determined by summing the numbers on all previous
expansion units/modules and the main unit. See the following figure and its calculation.
X0 X1 • • • • • • • • • • • • • • X23
X1 X2
• • • • • • X12 • • • • • • X24
Y0 Y1
• • • • • • • • • • • • Y15
Y1 Y2
• • • • • • • • • • • • Y16
X1 X2
• • • • • • • • X14
Y1 Y2
• • • • • • • • Y10
X0
X23
X24
X37
X38
X61
X49
Y0
Y15
Y16
Y25
Y26
Y41
FBS-40M△
(主機 )
(
第1個擴充機/模組 )
(
第2個擴充機/模組 )
FBS-24XYR
FB
S-40XYR
As shown in the above figure, because the top X numbers of the previous two units are 23 and 14, respectively, the
number of input contact X12 on second expansion unit should be:
X (23＋14＋12) ＝ X49
Main Unit
1
st
expansion
unit/module
2
nd
expansion
unit/module