FUNCTION CHARACTERISTICS
30
NC020 - Manual - 05 - 2022
— Communication interfaces
Several communication ports are provided:
• RS232 port on the front side for local communication (ThyVisor).
• RS485 port on the rear side for bus communication.
RS232
A simple DIN to RJ adapter can be used; the L10041 cable can be supplied.
The RS232 port has high priority compared with the RS485 port.
If RS232 port is not available on Personal Computer, an USB-RS232 converter must be employed.
[1]
The serial port is the simplest access for setting by means the ThyVisor software.
RS485
The ModBus RTU is a serial communications protocol. It is a de facto standard communications pro-
tocol in industry, and is now the most commonly available means of connecting industrial electronic
devices also inside electric utilities and substation.
Note 1 After installation, the same communication port must be selected to define the ThyVisor parameters (typically COM4, COM5,...).
serial-sch.ai
L10041
TXD
RXD
DTR
GND
4
3
1
2
1
2
3
4
6
7
8
9
5
Female connector
RJ10 Connector
Pin1
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