MGate 5111
Web Console Configuration
4-10
Master Settings
Parameter
Value
Default Description
Initial delay
0 - 30000 ms 0
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. After booting up, you can force the MGate to
wait before sending the first request with the Initial Delay
setting.
Max. retry
0 - 5
3
The number of times the master will retry the same request
when the response times out.
Response
timeout
10 - 120000
ms
1000
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 operations even if a
slave device is disconnected or faulty. On the MGate 5111, the
Response timeout field is used to configure how long the
gateway will wait for a response from a Modbus ASCII or RTU
slave. Please refer to your device manufacturer’s
documentation to manually set the response time.
Inter-frame delay
(only for Modbus
RTU)
10 - 500 ms
0
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 5111 will
automatically determine the timeout interval if the timeout
value is set to 0.
Inter-character
timeout
(only for Modbus
RTU)
10 - 500 ms
0
The users can determine the time delay to transmit the data
frame received from the slave device to the upstream. The
MGate 5111 will automatically determine the time interval if it
is set to 0.
Add Modbus Commands
Please refer to 2. Modbus TCP Client (Master) Settings
5. Modbus RTU/ASCII (Slave) Settings
