Modbus

note by default, the modbus drivers monitor holding address 0 for connection status if the modbus device does not have holding address 0, then it will not show the "connected" status you will still be able to read data from the device here are the major differences for the modbus drivers driver use enron modbus docid\ ldvibg2iekrsj4cgabpfo serial connection or tcp connection to a modbus device modbus ascii docid\ ys xifsvrika wr1de wq modbus ascii (gen1) docid\ fbrgdbcmx truz inltvk modbus ascii advanced docid\ m6jotcrga 7nvysszh9lr serial connection to a device using modbus ascii modbus rtu docid 8fmimu9yuht wnfhsoxij modbus rtu (gen1) docid\ xzo28hbnysfvxyjwtjf77 modbus rtu advanced docid\ adovlpsx h4jmifvhgq44 modbus rtu offset (gen1) docid\ fqlnnep z5kkrkrxa5xoi serial connection to a device using modbus rtu the gen2 driver has an option for zero based addressing and therefore replaces both gen1 rtu drivers modbus rtu over tcp docid\ wtawr3tdnu4cbmhvuitvi tcp connection to a modbus server which has one or more modbus rtu connections modbus tcp docid wku1najuga3kzu g9vty modbus tcp (gen1) docid\ ghyw l8vrpwu43ld5vo m modbus tcp offset (gen1) docid\ wg8bjcmr5z6oisnb0tcnk tcp connection to a modbus device the gen2 driver has an option for zero based addressing and therefore replaces both gen1 tcp drivers modbus udp docid\ gdjqd3pxwg4fjjpds7jhd modbus udp (gen1) docid\ jwd flnf5ndya8gaiis l udp connection to a modbus device