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Ethernet interframe conguration:
The interframe time for serial ports is given directly in the conguration for each serial port.
For Ethernet devices, it is more complicated to determine the communication interface with modbusTCP
devices.
The interframe parameter for Ethernet is therefore global and is congured using the line:
tcpInterFrameMs;<value>
PARAMETER DESCRIPTION DEFAULT VALUE
Value Waiting time between 2 frames in modbus TCP. This
time is expressed in ms
0
The operating principle is the same as for the serial ports. Each time a frame is sent in modbus TCP, the
concentrator will leave a silence corresponding to “tcpInterFrameMs” between the device response and
the next query to network devices.
The interframe parameter is global, meaning it applies to all modbusTCP communications and
can therefore result in the slowing down of data reading if it is too high.
This parameter is to be used for certain specic modbusTCP devices. See “3.1.2.1.3.3 - Serial port
conguration“ for more details on how the inter frame time operates.
When editing this le using Excel, the following display is shown using the CSV format:
type ip mask gateway dns1 dns2
LAN1 192.93.121.37 255.255.255.0 192.93.121.1 192.93.121.8 0
LAN2 192.168.2.12 255.255.255.0
tcpInter
FrameMs
0
If the le is modied using “Excel” type spreadsheet software, the format may be modied and the
“;” delimiters replaced by “,”, making it unusable by the concentrator. Always make sure to indicate the
delimiter format when saving.
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