Lumel P30U series - Transducer Functions; Measurement Input; Interface RS-485 Master Mode

40
40
SaveFile No
donothing
Yes
Force writing transdu-
cer configuration file
into an external SD/
SDHCcardorinternal
filesystemmemory
5.5. Transducer functions
5.5.1. Measurement input
 TheP30Utransducerisequippedwithuniversal,configurable
measurement input, which enables to measure direct current, direct
voltage, resistance and temperature from thermocouples and thermi-
stors.Detailedinformationaboutsupportedinputsisshownintable48.
InputtypeRS-485isaspecialtypeofinput,inwhichtransducertreats
valueformregister8000asameasuredvalue.Valueinregister8000
dependson
RS-485
interfaceworkingmode(Slave,MonitororMaster)
andcanbewritten,monitoredorreadviaRS-485interface.
5.5.1.1. Interface RS-485 Master mode
 RS-485interfacecanworkinMastermode,inwhichdevice
isabletoreaddataregistersfromoneslavedeviceconnectedtotrans-
ducer. Both devices must have the same communication parameters.
TheRS-485Mastermodeisswitchedonbyselectingtheappropriate
mode of RS-485 interface  from menu:  Mbus 485 → Mode →