4.3 Temperature Sensor
To collect battery temperature data for temperature compensation so the controller can accurately charge
the battery. The temperature sensor is connected via interface 5.
If the external temperature sensor is not connected or damaged, the controller defaults to the internal
temperature information.
The controller is shipped with an 80 mm long cable temperature sensor. Should a sensor with a longer
cable be required than this needs to be ordered separately.
4.4 RS485
The charger is equipped with a RS485 port with RJ11 sockets, the RJ11 interface is defined as follows:
4.5
4.5.1 Bluetooth Communication
Two options are available:
1. BT inside
2. BT external (Cyber-BT), and connected via RJ11 connector.
Bluetooth communication has the following characteristics:
1. Support Android mobile phone App
2. Realizes wireless monitoring function of PV charge controller
3. Use high performance, ultra-low power consumption Bluetooth dedicated chip
Option Accessories
4. Adopt Bluetooth 4.2 and BLE technology
5. Communication distance up to 10m.
!
Protocol applicable to this controller: Modbus Communication Protocol V3.9
1.This icon in this specification indicates that this solar controller has Bluetooth communication
function.
2. Refer to Bluetooth APP instructions for detailed operation of mobile APP.
4.5.2 Wireless Communication for Internet of Things
The controller equipped with the Internet of Things wireless communication capability has the following
characteristics:
1. For the wireless Internet of Things communication functionality the controller can be remotely accessed
through IoT/GPRS.
2. A variety of options are available for remote monitoring and real-time control through WeChat App /PC
program.
3. Real-time monitoring of PV voltage, PV charging current, battery voltage, battery current, load voltage,
load current and other system parameters as well as charge controller status.
4. Real-time automatic fault alarm
5. Charging and discharging quantities can be counted and displayed by item grouping and month.
Please contact our Sales Team for more details about the IoT wireless communication.
RJ11 for controller
1
2 3
4 5
6
NC
RS 48 5-B
RS 48 5-A
NC
NC
NC
Pin No.
Definition
1
NC
NC
NC
RS485-A
RS485-B
NC
2
4
3
5
6
The RS485 interface on this charger is not galvanically isolated and can not be grounded.
Do not short circuit unused pin (Note NC).
6