HYD 3K~6K-EP
User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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2. RS485
（
Wired monitoring or inverter cascade monitoring
）
Refer to the figure shown below, connect the RS485+ and RS485- of the inverter to
the TX+ and TX- of the RS485
→
USB adapter, and connect the USB port of the
adapter to the computer. (NOTE
：
The length of the RS485 communication cable
should be less than 1000 m)
Fig 4-10
RS485 wires are connected in parallel between inverters, (NOTE
：
When multiple
inverters are connected via RS485 wires, set communication address to
differentiate the inverters
，
please refer to this manual<6.3.1System
setting
→
8.Communication Addr>)
Fig.4-11 RS485 connection(cascade of monitoring between inverters)
3. Logic interface
The logic interface pin definitions and circuit connections are as follows:
Logic interface pin are defined according to different standard requirements
（
a
）
Logic interface for AS/NZS 4777.2:2020, also known as inverter demand
response modes (DRMs).
The inverter will detect and initiate a response to all supported demand response
commands within 2 s. The inverter will continue to respond while the mode
remains asserted.
Table 4-6 Function description of the DRMs terminal
