AC800M communication with modem
We have 15 wells in different located in desert. They have local ABB RTU and in control room we have AC800M controller. Customers is proposing to have modem communication. On ffrequently ac800m controller has to Dial each well modem one by one to get data. Can we use comli lib or any other solution please suggest.
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Using of modems should be possible with AC800M. Attached slide could help.
Please type in CBM Help Search: modem, Modem Communication Library, COMLI.
In CBM Library you should insert HW library ModemHWLib and connect HW type to COM3.
Then you will need SW Library ModemCommLib or COMLICommLib.
For configuration I can't help because never used this functions.
PLC Connect offers "Dialed Communication" for precisely this application. See the PLC Connect configuration manual. Dialed communication transfers data directly to the 800xA HMI - NOT to the AC800M controller. Data transferred by an asyncronous and intermittent link like this typically isnt any use for "control" since all the control functions are done by the local RTU. Hence it is not normal to transfer data into a central AC800M.