Sungrow EMS200, User Manual

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User Manual 8.
WEB Interface
27
Parameter Description
IEC-104 parameters
Timeout T1: acknowledgement timeout of the
control packet.
Timeout T2: Response timeout of the monitoring
packet, where T2
＜
T1.
Parameters k and w: K is the largest number, and
W is latest acknowledgement number. The sender
stops sending after sending K packets, and the
receiver performs acknowledgement after receiving
w packets.
Range: 1 to 32767
Recommended: w<k*2/3, where k is 12, and w is 8.
Communication port
configuration
According to the specific connected
communication cable, select the type of the device
connected to the corresponding port.

If the PCS communication cable is connected to
the serial port 1, the PCS is selected as the
device type for the serial port 1. The start ID is
set to 1, and the end ID is set to 247.

If a device connects to 2 serial ports, start IDs
and end IDs of the two serial ports should be
different from each other.
Maximum device number
Used for setting numbers of devices of different
types in the system according to the actual
situation. The set number should be equal to the
number of actually connected devices.
8.7.4 Slave Unit Parameters
The Slave Unit Parameters are used to set communication address of the
connected device. For example, for the PCS communication method, select an
internet port mode, and set IP address, port number, and Modbus ID for each
device.