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 docid\ dbtnkppzeg0hb2lys0fpx serial connection or tcp connection to a modbus device docid\ oeohqibxp46l0dwtp xmz docid\ xhv tpwiacyqhapzofoia docid\ dggp6kmsuj7b3cqj6lkp8 serial connection to a device using modbus ascii docid\ clmeyaokmeszsj9gmplb docid\ ufdsdcj0htv8fkv2ybetm docid\ vo594n1omayqaztcnfxr docid\ lruq4f sopiyuhzdmguw3 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 docid\ i6fv1behsy qnwxc fls tcp connection to a modbus server which has one or more modbus rtu connections docid\ nber6llrzwtlko50 hv3v docid\ qip9f4qgcya63nm3owawm docid ec6me 3t4rl91uo8cz8t tcp connection to a modbus device the gen2 driver has an option for zero based addressing and therefore replaces both gen1 tcp drivers docid 2tsq h8tueu mt9d zgs docid\ jz6slfj9p6g2la9kstwmv udp connection to a modbus device