Minebea Intec PR 5211 Series, Инструкция по эксплуатации инструмента, Страница: 66 / 96

Field Size Function
AboveMax 1 bit The weight value has exceeded the max. (FSD), but is
still within max. + permissible overload (gross ≤ FS-
D+overload).
ADUError 1 bit AD conversion error, see Chapter 7.2.5.2 .
7.2.2 Reading and writing data with function numbers
7.2.2.1 Reading data
Procedure:
Action of the master Slave reaction
Write function number to
Read_Value_Select .
Write requested data in Read_Data (bytes
0-3).
Copy Read_Value_Select to
Read_Value_Selected .
Wait until Read_Value_Selected =
Read_Value_Select .
Read requested data in Read_Data (bytes
0-3).
7.2.2.2 Writing data
Procedure:
1. Write the function number as Read_Value_Select in byte 4 of the write window (e.g.,
9 = net weight).
2. Wait until Read_Value_Selected in byte 4 of the read window is equal to
Read_Value_Select of the write window.
The requested value is available in bytes 0-3.
1. Wait until Write_Active = 0 in the read window (slave is ready to receive new data).
2. Write value in bytes 0-3 of the write window.
3. Write the function number as Write_Value_Select in byte 5 of the write window (e.g.,
"Basic” application: 190 = analog output 1).
4. Wait until Write_Active = 1 in the read window.
5. Write 0 in byte 5 ( Write_Value_Select ).
Write_Active is reset.
Transmitter Series PR 5211 7 ProfiBus interface
Minebea Intec EN-64