PWS2-30K-EX has two different communication interfaces: Ethernet and RS-485, meanwhile, there is EPO connection and DMR0 port.

PWS2-30M-EX can be directly networked through Ethernet and connected to PC for communication. Through networking, users can remote dispatch energy, monitor operation state, and set parameters with background software in PC.

Step 1: Penetrate network cable whose insulating layer is stripped into the waterproof bushingcap and inserted it into RJ45 connector after being arranged in order;
Step 2: Use wire crimpers to compress the connector;
Step 3: Insert the finished cable into the “Ethernet” port of the inverter panel.
Step 4: Insert the ready-made cable into Ethernet terminal.
Step 5: Lock the waterproof cap.

PWS2-30M-EX can be connected to BMS/EMS through RS-485 to obtain battery information and energy dispatching command and complete automatic charging and discharging control and protection of energy storage system. The port is a 3.81MM pitch pluggable terminal block with a spacing of 3.81 8P.
Insert the communication cable into the terminal block, lock the terminal, and access the communication port according to the sequence of the operation panel.

The R-in+ interface and R-in-interface can be used as the EPO interface, which is a 3.81MM pitch pluggable terminal block. The EPO function can be enabled or disabled by setting the contents of the 0x0148 address register to 1 or 0. When the EPO function is enabled, you needs to short the R-in+ interface to the R-in-interface to maintain the normal operation of the PWS2-30M-EX. If the R-in+ interface is disconnected from the R-in-interface, the device will trigger an EPO alarm to shut down.

According to the Australian certification requirements for the Inverter demand response modes (abbreviated as DRM) function, the grid-connected equipment incorporated into the Australian grid must be equipped with a DRM device. Therefore, the PWS2-30M-EX device shipped to Australia must have a built-in DRM device, while shipments to other countries, optional DRM device. At present, the DRM device built into the PWS2-30M-EX can only implement the DRM0 function as shown in the following figure.

When the PWS2-30M-EX has a built-in DRM device, the customer can enable or disable the DRM0 function by setting the contents of the 0x0148 address register to 2 or 0.

If the DRM0 function is enabled, a resistor with a resistance of 15kΩ and power greater than 0.1W must be connected between the R-in+ interface and the R-in-interface. If the resistor is short-circuited or open circuited, the PWS2-30M-EX device will report a fault within 2 seconds and shut down.