Minebea Intec MiNexx-link-E PR 5215/01 - Reading and Writing Data with Function Numbers

9. Fieldbus interface | 9.2 - Scale protocol | 112
Field Size Function
CenterZero 1 bit The weight value is within center zero (0
±0.25d).
BelowZero 1 bit The weight value is negative (gross <0d).
Overload 1 bit The weight value has exceeded the measur
ing range. No valid weight data is specified
(gross>FSD+overload).
AboveMax 1 bit The weight value has exceeded Max (FSD),
but is still within Max + permissible overload
(gross≤FSD+overload).
ADCError 1 bit AD conversion error, see ChapterFunction
number 1: scale status (read).
9.2.2 Reading and writing data with function numbers
9.2.2.1 Reading 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.
Action of the master Slave reaction
Write function number to Read_Value_S
elect.
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).