Table of Contents
Advertisement
APPENDIX B: PROFIBUS COMMUNICATION CONFIGURATION
The positioner can be controlled via the Profibus-DP field bus. This appendix describes the format of the
application interface towards Profibus-DP.
Some of the bytes used for the Profibus-DP communication can be read and written also via a normal
configuration serial channel by stating the suitable IPA. The following points have to taken into consideration:
1.
The reading and writing procedure is formed with words where the bytes are gathered into couples.
2.
Each word can contain from 0 to 15 bits.
INPUT for DGFC
Process Data Channel
Byte 0
SelectPositionByte
Byte 1
ProcessDataInByte 1
Byte 2
ControlAxisByte
Byte 3
ProcessDataInByte 3
One-axis positioner
IPA
BIT
Bit description
dInAs0: 1268 0
Select position (Bit 0)
1
Select position (Bit 1)
2
Select position (Bit 2)
3
Select position (Bit 3)
4
Select position (Bit 4)
5
Select position (Bit 5)
6
7
0
1
2
3
4
5
6
7
dInAs1:1270 0
Positioner enabling
1
Hold
2
Alarm reset
3
Zero cycle start
4
Jog+ movement
5
Jog- movement
6
Movement to the Set Point 1.
7
Movement to a 64-set point
arrray
0
Jog+ movement with a fixed
delta space
1
Jog - movement with a fixed
delta space
2
Movement to the Set Point 2
3
4
5
6
Override set at 100%
7
S-shaped ramp enabling
—————— Instruction manual ——————
Function description
Set point array index to be enabled.
The values are included between
1 and 64.
Positioner command word.
See the description in the specific
parameter.
43
Advertisement
Table of Contents
