96
PROFIBUS-DP external communication cards
POWERXL DG1 SERIES VFD
MN040010EN—September 2016 www.eaton.com
DO I/O data
The set points to the Axis and also the actual from
the Axis are transferred as DO I/O data. The DO I/O
data is transferred using the cyclic data exchange.
The representation of data shall be in big endian format.
The following advantages are obtained due to the telegram
configuring and normalization.
•
Interoperability and interchangeability of PROFIdrive
Controllers and Drive Objects
•
Standard components may be simply commissioned
•
Automation mechanisms in the controller application
Signals
A series of signals with appropriate signal numbers is defined
to configure the DO I/O Data (set points, actual values).
The following values are permissible for the signal numbers.
•
0 = not assigned
•
1-99 = standard signal numbers (profile-specific signal
numbers)
•
100-65535 = signal numbers (device-specific)
The PowerXL PROFIBUS optional card, the defined signal
numbers are listed in the following.
Table 121. PROFIBUS option Card
Signal
no.
Significance
Abbreviation
Length
1
Control word 1
STW1
16
2
Status word 1
ZSW1
16
5
Speed set point A
NSOLL_A
16
6
Speed actual value A
NIST_A
16
Standard telegram 1
Standard telegrams 1 is defined for speed set point
interface operations application class (AC1). The standard
telegrams are selected when configuring the DO I/O Data.
The standard telegram 1 has the following structure.
•
n set interface, 16 bit
Table 122. Standard telegram 1
I/O Data
Number
Set point
Actual value
1
STW1
ZSW1
2
NSOLL_A
NIST_A
PROFIdrive Profile
The PROFIdrive profile PNU numbers are listed in
Appendix A
of this manual.
