Step 7 Program Examples - Siemens SINAMICS G110M Function Manual

A.1.3

STEP 7 program examples

Data exchange via the fieldbus
Analog signals
The inverter always scales signals that are transferred via the fieldbus to a value of 4000
hex.
Table A- 1
Signal category
Speeds, frequencies
Voltage
Current
Torque
Power
Angle
Temperature
Acceleration
Control and status words
Control and status words consist of a high byte and a low byte. A SIMATIC control interprets
words differently than the inverter: The higher and lower-order bytes are interchanged when
they are transferred. See also the following program example.
Fieldbuses
Function Manual, 01/2016, FW V4.7 SP6, A5E34229197B AC
Signal category and the associated scaling parameters
4000 hex ≙ ...
p2000
p2001
p2002
p2003
r2004
p2005
p2006
p2007
A.1 Communication with STEP7
available in
CU230P-2 CU240D-2
G120C CU250D-2
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Appendix
CU240B-2 CU250S-2
CU240E-2
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