MGate MB3660 Modbus Gateway
Web Console Configuration
4-25
Double click the intended serial port to configure additional settings.
Parameters
Description
Initial delay
Some Modbus slaves may take more time to boot up than other devices. In some
environments, this may cause the entire system to suffer from repeated exceptions
during the initial boot-up. You can force the MGate to wait after booting up before
sending the first request with the
Initial Delay
setting.
Max. retry
The number of times the master will retry the same request when the response
times out.
Response timeout
According to the Modbus standard, the time it takes for a slave device to respond to
a request is defined by the device manufacturer. Based on this response time, a
master can be configured to wait a certain amount of time for a slave’s response. If
no response is received within the specified time, the master will disregard the
request and continue operation. This allows the Modbus system to continue
operation even if a slave device is disconnected or faulty.
On the MGate 5101-MB-EIP, the
Response timeout
field is used to configure how
long the gateway will wait for a response from a Modbus ASCII or RTU slave. Refer
to your device manufacturer’s documentation to manually set the response time.
Inter-frame delay
The users can determine the time-delay to transmit the data frame received from
the slave device to the upstream. The MGate MB3660 will automatically determine
the time interval if it is set to 0.
Inter-character timeout Use this function to determine the timeout interval between characters for Modbus
devices that cannot receive Rx signals within an expected time interval. If the
response is timed out, all received data will be discarded. The MGate MB3660 will
automatically determine the timeout interval if the timeout value is set to 0.
For Master mode, you must identify which Modbus requests need to be sent to Modbus slave devices through
serial interface. The data will be exchanged between slave devices and the MGate gateway’s internal memory.
To do this, manually add all Modbus commands that will handle the data exchange. The
Add
,
Edit
,
Copy
, and
Delete
buttons support the Modbus command arrangement. When you click on the
Add
and
Edit
buttons, the
following dialog box will be displayed.
