The LU1W controller is equipped with:
•
1 RS-485 serial port with MODBUS RTU slave communication protocol
•
1 RS-485 serial port with MODBUS RTU master communication protocol dedicated to fan control
•
1 CAN port with CANBUS communication protocol dedicated to communication with the display and other
auxiliary devices
•
1 USB port
•
1 Ethernet port with MODBUS TCP or webserver functionality
The MODBUS RTU slave communication protocol parameters are available in the ADVANCED → VARIED menu:
•
8 bit Data + 0 or 1 parity bit + 1 or 2 stop bit
PARAMETER
NAME
PH90
Slave MODBUS address
Slave MODBUS baudrate
0 = 1200
1 = 2400
2 = 4800
PH91
3 = 9600
4 = 19200
5 = 28800
6 = 38400
7 = 57600
Slave MODBUS parity
0 = None
PH92
1 = Odd
2 = Even
Slave MODBUS stop bit
PH93
0 = 1 stop bit
1 = 2 stop bits
In the same menu are the parameters for communication via Ethernet port:
PARAMETER
NAME
PH80
IP address
PH81
Subnet mask
PH82
Gateway
PH83
MB master port
PH84
MB slave port
PH85
Web server port
LU1W - User Manual
18 MODBUS COMMUNICATION
DESCRIPTION
DESCRIPTION
DEFAULT
MIN
VALUE
VALUE
1
1
4
0
2
0
0
0
DEFAULT
MIN
VALUE
VALUE
192.168.
0.0.0.0
100.100
255.255.
0.0.0.0
255.0
192.168.
0.0.0.0
100.1
502
0
502
0
180
0
109
MAX
UM
VALUE
247
-
7
-
2
-
1
-
MAX
UM
VALUE
255.255.
-
255.255
255.255.
-
255.255
255.255.
-
255.255
-
65535
-
65535
-
65535
REV.1.1 – 07/11/2017 - ENG
MENU
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
MENU
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS
ADVANCED →
VARIOUS