Sartorius PR 5211 Series - Parameter Read and Write Via Profibus

PR 5211 Instrument Manual ProfiBus Interface
Sartorius EN-61
6.1.5.7 Example: Read out of Gross Value
The Master writes a 8 to the 'Read_Value_Select' (Byte 4) of the input area.
Input area
Byte
Value
Description
0
1
2
3
4
8
gross
5
6
7
The Master waits until an 8 in Read_Value_Selected (Byte 4) is reflected of the output area.
Output area
Byte
Value
Description
0
00
gross value
1
00
"
2
4
"
3
D2
"
4
8
gross request detected
5
Status
6
Test
Active
Command status
7
Stand-
Still
Inside
ZSR
Center
Zero
Below
Zero
Over-
load
Above
FSD
Adu
Error
Transmitter-Status
The gross value (hex:000004D2 <=> 1234) could be read out from Bytes 0...3. If the status-Bits Overload,
Test Active or Adu Error is set, the read out value is not valid.
Negative values are given in two's complement.
6.1.6 Parameter Read and Write via ProfiBus
6.1.6.1 Parameter Writing
The following is done subsequently:
Master Transmitter
Write parameter value in register 20
(method see chapter 6.1.5.2)
The value is stored intermediately
Write parameter index in register 21
(method see chapter 6.1.5.2)
The value is stored intermediately.
Set bit 123, set parameter
(method see chapter 6.1.5.3)
The parameter is taken over.
The bit is reset immediately