roiyjet Posted August 31, 2011 Share Posted August 31, 2011 Hi I am reading Modbus RTU name PH_ONE channel 8562 for example , the reading is fine I just want to know what I should write in the display variable value expression PH_one[1] ? Its work Fine But I want to be sure that is Right . 10x for the help Link to comment Share on other sites More sharing options...
AzeoTech Posted September 1, 2011 Share Posted September 1, 2011 "ph_one" is the name of your channel? Then you want ph_one[0]. [0] means the most recent data point. [1] like you gave in your example means the next most recent data point. Link to comment Share on other sites More sharing options...
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