Proline Promass 83E/F/O Operation Manual - FMC Technologies

Operation Proline Promass 83Command No.HART command / Access typeCommand data(numeric data in decimal form)Response data(numeric data in decimal form)44 Write unit of primary processvariableAccess = writeSet unit of primary process variable.Only unit which are suitable for the process variable aretransferred to the device:Byte 0: HART unit codeFactory setting:Primary process variable = Mass flow! Note!• If the written HART unit code is not the correct onefor the process variable, the device will continue withthe last valid unit.• If you change the unit of the primary process variable,this has no impact on the system units.The current unit code of the primary process variable isdisplayed as a response:Byte 0: HART unit code! Note!Manufacturer-specific units are represented using theHART unit code "240".48 Read additional device statusAccess = read50 Read assignment of the devicevariables to the four processvariablesAccess = read51 Write assignments of the devicevariables to the four processvariablesAccess = writenonenoneSetting of the device variables to the four processvariables:– Byte 0: Device variable code to the primary processvariable– Byte 1: Device variable code to the second processvariable– Byte 2: Device variable code to the third processvariable– Byte 3: Device variable code to the fourth processvariableCode of the supported device variables:See data ä 44Factory setting:• Primary process variable = Mass flow• Second process variable = Totalizer 1• Third process variable = Density• Fourth process variable = TemperatureThe device status is displayed in extended form as theresponse:Coding: see table ä 50Display of the current variable assignment of the processvariables:– Byte 0: Device variable code to the primary processvariable– Byte 1: Device variable code to the second processvariable– Byte 2: Device variable code to the third processvariable– Byte 3: Device variable code to the fourth processvariableFactory setting:• Primary process variable: Code 1 for mass flow• Second process variable: Code 250 for totalizer 1• Third process variable: Code 7 for density• Fourth process variable: Code 9 for temperature! Note!You can set the assignment of device variables to processvariables with Command 51.The variable assignment of the process variables isdisplayed as a response:– Byte 0: Device variable code to the primary processvariable– Byte 1: Device variable code to the second processvariable– Byte 2: Device variable code to the third processvariable– Byte 3: Device variable code to the fourth processvariablePage 48 • MN0M022Issue/Rev. 0.2 (12/12)