HMS Networks Anybus Communicator ABC3028 User Manual page 41

Modbus tcp to modbus rtu/serial
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Communicator Configuration
7.5.3
Communication Advanced Settings
Inter-Telegram Timeout Mode Settings
By default, Inter-telegram timeout mode Default (3.5 characters) is used.
This is according the Modbus RTU standard, which advocates the use of a silent period
equivalent to 3.5 characters between each message. The silent period is used to find out where
one message ends and the next begins.
You can use Custom settings to set the desired Inter-telegram timeout and Inter-telegram delay.
The following must be applied on all nodes:
The time between two adjacent characters in the same telegram must be less than Inter-
telegram timeout.
The time between two characters in two different telegrams the same or more than Inter-
telegram delay.
®
Anybus
Communicator
User Manual
39 (124)
SCM-1202-162 1.1 en-US

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