Instructions

Table Of Contents
7.5.3. Communicaon Advanced Sengs
Inter-Telegram Timeout Mode Sengs
Figure 27. Advansed sengs, Default (3.5 characters)
By default, Inter-telegram meout 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 nd out where one message ends and the next
begins.
Figure 28. Custom sengs, Inter-telegram meout and Inter-telegram delay
You can use Custom sengs to set the desired Inter-telegram meout and Inter-telegram delay.
The following must be applied on all nodes:
The me between two adjacent characters in the same telegram must be less than Intertelegram meout.
The me between two characters in two dierent telegrams the same or more than Intertelegram delay.
Anybus
®
Communicator
- PROFIBUS to Modbus RTU/Serial General Subnetwork Sengs
Page 48 of 134 SCM-1202-177 1.2