16
5 - ELECTRICAL CONNECTIONS
5.8 SERIAL PORT RS485 WITH MODBUS PROTOCOL
ACCESSORY
PE1P0005 (CMSC2X)
seriale TTL
QUADRO ELETTRICO
AP6
AP1
XT1
1 Install the AP6 converter
2
Connect TTL serial
3 Wire as indicated in the wiring diagram.
Supervisory
The unit can be connected to an external supervisory system.
Enable the function:
Par CF01 protocol selection
0 = Disabled
1 = Modbus
CABLE CHARACTERISTICS
Couple of twisted and shielded conductors
Section of the conductors 0.22mm
2
…0,35mm
2
Nominal capacity among the conductors < 50 pF/m
Nominal impedance 120 Ω
Recommended cable Belden 3105A or others with
equal properties.
Parameter
Description Range
CF30
ModBus
address
1….255
CF31
BaudRate Baud Rate (0=1200 / 1=2400 / 2=4800 /
3=9600 / 4=19200) supervision serial
Main menu
Parameters
CF
CF01
Parameters modification
XT1