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Installation
16 17
3.6.2 Structure of the communication system
TP series inverters support two flexible communication modes: Standard
Wifi communication and optional RS485 communication. The topological structure
of RS485 communication is as below. (Wifi connection refers to Wifi Setup Guide)
If you have any question when reading the following information,
please do no hesitate to contact Thinkpower.
Tip
RS485 communication
The RS485 communication supports ModBus Protocol. Following is detailed
connection steps.
●
Fig.3-12
Fig.3-13
2) Communication between multi-device and a PC
See the figure below for the connecting method. Connect RS485 terminals of
inverters in parallel. Connect 3/4 terminals of the first inverter to A/B terminals
on RS485/USB switch, and then connect the other end of the switch to computer.
The maximum number of RS485 communication devices is 32 units.
The“Multi-device communication mode 2”with RS485 and WIFI is
applicable for centralized installation where wiring is not convenient
between the computer and devices.
Tip
Tip
Tip
RS485/USB switch module and WIFI wireless module are serial products
orderable from Xinqi Power RS485/USB switch module can be
purchased by the user of own.
If RS485 communication mode is selected, it is recommended to use
two-core dual-twisted shield cable. The recommended specification is
RVVP2＊1.0. The maximum transmission distance of RS485
communication mode is 1200m.
Installation
RS485
RS485/USB
RS485 RS485 RS485
RS485/USB
1) Communication between a single device and a PC
See the figure below for the connecting method. Connect 3/4 terminals of
inverter to A/B terminals on RS485/USB switch, and then connect the other
end of the switch to computer.
No load can be directly connected to the output side of the inverter.
Notice
WIFI wireless communication is functioning within 400m
in an opening distance, but interference and barrier shall
be put into consideration because the actual transmission
distance is influenced by the installation field and external
interference.
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