LG LCWW, Operation & Maintenance Manual

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25
ENGLISH
Controller system composition diagram
Master, slave, HMI, Relay board communicates with RS485, and in one master/slave board, there are analog
input(temp. 12 channel, current 10 channel), analog output(current 4 channel), digital input(20 channel), digital out-
put(16 channel).
Relay board controls Solenoid valve in 2 comp.
UART
(MAIN)
RS4 8 5
RS4 8 5 RS4
8
5
HMI: Display & Communication
Relay: Solenoid valve
SLAVE: temp. pressure digital
input/output control
Master: temp. pressure digital
input/output control
LCD
DISPLAY
(7inch)
KEY-
PAD
DATA
DOWN
UART
(DISPLAY)
UART
( B MS)
UART
(Slave)
MICOM
PT100
INPUT
4-20mA
INPUT
4-20mA
OUTPUT
DIGITAL
INPUT
DIGITAL
OUTPUT
UART
( B MS)
UART
(Slave)
UART
(DISPLAY)
MICOM
DC 0~5V
INPUT
DIGITAL
OUTPUT
MICOM
UART
(Master)
PT100
INPUT
4-20mA
INPUT
4-20mA
OUTPUT
DIGITAL
INPUT
DIGITAL
OUTPUT
MICOM
(ARM)
RS4 8 5
RS4 8 5
RS4
8
5
DC 0~5V
INPUT
DIGITAL
OUTPUT
UART
(Master)
LCD
DISPLAY
(7inch)
KEY-PAD
MICOM
(ARM)
UART
(MAIN)
DATA
DOWN
UART
(DISPLAY)
UART
(
B MS)
UART
(Slave)
MICOM
PT100
INPUT
4-20mA
INPUT
4-20mA
OUTPUT
DIGITAL
INPUT
DIGITAL
OUTPUT
UART
(
B MS)
UART
(Slave)
UART
(DISPLAY)
MICOM
PT100
INPUT
4-20mA
INPUT
4-20mA
OUTPUT
DIGITAL
INPUT
DIGITAL
OUTPUT
HMI: screen display and communication
Relay: Solenoid valve
SLAVE: temp. pressure digital
input/output control
Master: temp. pressure digital
input/output control
Figure 16. Controller block diagram