Monarch Instrument Guardian - Manual (Page 11)

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4.7 Optimizing the Modbus Connection
Guardian utilizes the standard ModBus over Ethernet TCP/IP protocol, but due to the nature of company
networks, no two places will perform the same. With high data traffic the Recorder may not respond in
time for Guardian to know it is still On-Line. The standard timeout is set for 5 seconds with 3 retries.
To change the timeout value, press the right mouse button and select “System” then “Ethernet Timeout”
from the shortcut menus.
Select from 1 to 15 seconds. The time selected will remain constant for the rest of the session.
For most cases, only the transfer of files requires time changes to satisfy large blocks of data
transmission. Normal data monitoring works fine with the standard time.