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thecarb posted a topic in Vision & Samba PLC + HMI Controllers & VisiLogic SoftwareHi all, I want to use a V700 and a device which also use RS232 connection protocol. There are some datas that should be read and controlling of ON/OFF status of the device. However, this will be the first time that I will use RS232 communication. How can I program this? For example, there is a command that I need to use below. I need to read those values and seperate the temperatures to different MI's. I believe I succeed to initialise communication port but not really sure. $TEA: Read all temperatures Command with checksum and carriage return = $TEAA4B9<cr> Response: $TEA,T1,T2,T3,T4,<crc-16><cr>