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So machine and ascii string

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Hi I have a device that requires ascii string to be sent to read or write specific variables. Below is the format


I am using a m241 and serial port 2 and connecting by 485 2 wire. Only n would be used as a variable to change speeds. only problem is I cant find how to send the whole string. Write_var seems to only let me send a single word. 



any help would be appreciated.




Edited by Rodz

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