3
rate). In general, there is no need to change this parameter.
Packet transmission interval
：
Interval time for sending Modbus commands (Delayed time from receiving the slave
response message to sending the next command) can be set from 0ms-65535ms. Default is
0ms. It is recommended to set 100ms and this can prevent connected devices from
communication failure due to slow response.
Timeout processing
：
Read data from slave station. Data processing mode can choose "data clear" or "data
retention" when slave station response is timeout. Default is “Data Hold mode”. This
parameter is only valid for Modbus read command. Please set this value according to actual
needs.
3.4.1.3.4.Select "COM1" or "COM2", and right-click to select “Add
Slave”.
It could then input "Slave name" and fill in "slave station number". Then it could configure
Modbus function code, start address of slave data, number of data, start address of gateway
mapping area and response timeout time and if “event output”(only when the data changes,
the gateway will execute this command once, this parameter is only valid for write
commands)
according to the communication manual of slave equipment. Under the same
