Variable
Function
Test_Active
The device executes the ADC test. The read weight value is not the gross value, but
the test value.
Out
Below zero or above Max (FSD).
Standstill
The scale is stable.
InsideZSR
The weight value is within the zero setting range.
CenterZero
The weight value is within
center zero
(0 ±0.25 d).
BelowZero
The weight value is negative (gross < -0.25 d).
Overload
The weight value has exceeded the measuring range. No valid weight data is speci-
fied (gross > FSD+overload).
AboveMax
The weight value has exceeded the Max (FSD), but is still within Max + permissible
overload (gross ≤ FSD + overload).
AdcError
AD conversion error (details are given in register 1, Read_Value_Select = 1).
12.2.4.3
Reading and writing register via fieldbus
Read data: Read_Value, Read_Value_Select, Read_Value_Selected
When the master has to read from the device, the register number is transmitted to
Read_Value_Select
in the input area. The result is specified with
Read_Value_Selected
in the output area.
Action of the master
Reaction of the PR 5410
Write register no. to
Read_Value_Select
.
Write the selected register to
Read_Value
.
Copy
Read_Value_Select
to
Read_Value_Selected
.
Wait until
Read_Value_Selected
=
Read_Value_Select
.
Read
Read_Value
.
Write data: Write_Value, Write_Value_Select, Write_Active
When the master has to write to the device, the required action is transmitted to the input
area with
Write_Value_Select
together with the data. Execution is indicated by the
Write_Active
bit in the output area.
Action of the master
Reaction of the PR 5410
Write value to
Write_Value
.
Write register number to
Write_Value_Select
.
Write
Write_Value
to the selected re-
gister.
12 Fieldbus interface
X3 Process Indicator PR 5410
EN-297
Minebea Intec
