FATEK FBs-4A2D - 3.2 Expansion of Communication Port

H3-4
The corresponding IR or OR number calculation of the NI/O module starts from the first expansion unit/module(main
unit itself does not have any NI/O). The first NI channel corresponds to the first IR register (R3840). Adding R3840 with
the number of IR used by the first NI channel gives the IR number of the second NI channel. Adding the IR number of
the second NI channel with the number of IR used by the second NI channel gives the IR number of the third NI
channel. All other numbers can be obtained accordingly. Similarly, the first NO channel corresponds to the first OR
(R3904). Adding R3904 with the number of OR used by the first NO channel gives the OR number of the second NO
channel. (In the cumulative calculation of NI channels, care only for NI channels and disregard DI/O and NI. Similarly,
in the case of NO channels, disregard DI/O and NI channels.) The following figure helps users find out the relation
between NI/O channels and PLC’s IR and OR.
CH1 (R3905)
CH0 (R3904)
CH0 (R3848)
CH1 (R3849)
CH2 (R3850)
CH3 (R3851)
CH4 (R3852)
CH5 (R3853)
(R3909~10)
CH1 |
(R3910~13)
IR
IR
IR
OR
OR
CC
I2-
I3+
C
I2+
H
2
I5-I4-
I3-
H
4
C
C
3
H
I4+
C
I5+
H
5
V I U B
FATEK
POW
H
0
10V5V
H
1
24V IN
I0-AG
I0+ I1+
I1-
POW
FATEK
CC
IV UB
FATEK
POW
10V5V
H
0
H
1
O1-
24V IN O0+
AG
O1+
O0-
SINK
SRCE
Y2Y1
C1
Y3
C3 Y4
OUT Y
( )
I23
POW
4
S/S
FATEK
( )
IN X
I234
X3
X2
X1
X4
CH1
FATEK
POWPOW
V
1
POW
EXT
0
V
CH0
( )
OUT Y
Y4
Y3
3
7
Y6Y5
C4 C6
0
4
2I
6
5
Y7
SINK
SRCE
RX
X4
( )
RUN
ERR
POW
IN X
3
I
I
7
0
8
4
2I
I0
9
5
6
X6
X5
X7
X8 X10
X9
X11
(R3906~8)
CH0 or
(R3906~9)
(R3840)
|
(R3847)
OR
X12
X13
Y9
Y8
I2 I3
8
9
Non-Decode
mode
Decode mode
During the startup stage, FBs-PLC will automatically detect the types and CH numbers of expansion units/modules.
While operation, the FBs-PLC will read the CH input values from the NI module and stores them into corresponding
IR(R3804 ~ R3903) and outputs OR values (R3904~R3967) to channels on the NO module. No pre-configuration or
setting by users is required.
3.2 Expansion of Communication Port
The main unit of FBs-PLC has one built-in communication port (port 0, with optional USB or RS232 interface).
Expansion of communication ports can be achieved by employing Communication Board (CB) or Communication
Module (CM). The available models of CB and CM for FBs are：