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\ flfml kevja2qjah8bzqy serial connection or tcp connection to a modbus device docid\ udqmlpblistopgir1oqq4 docid\ crp5cyf8aotvtlsmr96sy docid\ tklvy5et66zzm50tbwrwz serial connection to a device using modbus ascii docid 0zqahlthi5b7yl4jivkpe docid 9vfszscm7ftythghvfq0j docid 63wcqxtekwttbkhoilnqa docid\ ol 0e7d7vwuxs0uobyc79 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\ e7tje7skztwbmpzcvo8vx tcp connection to a modbus server which has one or more modbus rtu connections docid 0mfihhpumlvdlpaf2cxrd docid\ tzbyzs lzappducatmupx docid\ nr3egr5m1kgx sokx4xc7 tcp connection to a modbus device the gen2 driver has an option for zero based addressing and therefore replaces both gen1 tcp drivers docid\ ijfxxev4ls6mqrjnpw8zx docid\ awgziruh587utfpbt4q6d udp connection to a modbus device