(I)GW11XX Modbus User Manual
3onedata proprietary and confidential 66
Copyright © Shenzhen 3onedata Technology Co., Ltd.
12
Modbus Settings
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12.1 Modbus parameter settings
12.2 Slave ID Mapping
12.1 Modbus parameter settings
Initial delay
When the Modbus gateway device is powered on, it will take a delay time to actually
start Modbus. This parameter is because the Modbus slave device initialization time is
relatively long, in order to avoid their initialization has not been completed before the
request frame access, so the gateway set the initialization delay time to decide to
initialize the time to issue the first request frame Delay.
TCP Modbus exception
This parameter is used to display Modbus TCP exception in Modbus monitoring
software. The default gateway sends Modbus TCP exception to Modbus monitoring
software.
Response timeout
Modbus is a master-slave protocol, the master access to the slave needs a response
timeout, and this time is the gateway "response timeout." The parameters exist in the
next figure in the
②
,
③
between the steps. After the gateway forwards the request
to the slave device, if the response of the slave device is not received within the
