Expansion Of Communication Port - FATEK FBS Series Manual

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.
X4 X6 X8 X10 X12
X5 X7 X9 X11
X13
0 I 2 3
4 5 6 7
8 9 I0 I I
I2 I3
IN X ( )
POW
RUN
ERR
RX
OUT Y
( )
0 I 2 3
4 5 7
6
8 9
Y4 Y5 Y6 Y8
SINK
SRCE
Y3 C4 C6 Y7 Y9
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：
FATEK
POW
24V IN
I0+
AG
I0-
C
H
V U B 5V 10V
I
0
FATEK
POW
C C C
H H H
2 3 4
I2+ I3+ I4+
I2- I3- I4-
IR
IR
OR
IR
24V IN O0 O1
I1+ + +
AG O0 O1
I1- - -
C C C
H H H
V U B 5V 10V
I
1 0 1
FATEK
POW
C
H
5
I5+
I5-
H3 -4
OR
S/S X1 X3
X2 X4
CH0
I 2 3 4
EXT
IN X ( )
POW
FATEK FATEK
POW POW POW
OUT Y ( )
I 2 3 4
SINK CH1
SRCE
Y1 Y2 Y3
C1 C3 Y4
OR
V V
0 1