Page 50 of 82
Date: 27.01.06
8
Profibus communication
8.1
Bus interface and GSD file
Bus interface
The bus interface of the Sensor Profibus Module is a PROFIBUS interface.
GSD file
The GSD file for communicating with the PLC can be downloaded from our
homepage
http://www.burster.de/software.html
or found in the 9221-P001
software package under “Device configuration”
“Profibus”.
8.2
Bus protocol and data format
The data format and the complete interface complies with the Profibus
specification to DIN 19245 or EN50170; the Sensor Profibus Module supports
both Profibus DP-V0 and Profibus DP-V1 functionality.
8.2.1
Cyclic communication (DP-V0)
8.2.1.1
Mode summary
Mode
Inputs:
9221
Master (Status)
Length Outputs:
Master
9221 (Control)
Length
1
PLCin
Mirror
Current measured value
2
2
4
Σ
: 8
bytes
PLCout
2
Σ
: 2
bytes
2
PLCin
Mirror
Current measured value
2
2
4
Σ
: 8
bytes
PLCout
Upper limit
Lower limit
2
4
4
Σ
: 10
bytes
3
PLCin
Mirror
Current measured value
Tared value
2
2
4
4
Σ
: 12
bytes
PLCout
2
Σ
: 2
bytes
4
PLCin
Mirror
Current measured value
Tared value
2
2
4
4
Σ
: 12
bytes
PLCout
Upper limit
Lower limit
2
4
4
Σ
: 10
bytes
