Rockwell Automation Publication 750-RM004A-EN-P - April 2018 115
Communication Configuration Chapter 3
The PowerFlex 755T network speed ‘Reference’ and ‘Feedback’ data using the
Embedded Ethernet or 20-750-ENTR option module are in engineering units
and are dependent on 0:46 [Velocity Units]. A Logix value of 60.2 written to
the network ‘Reference’ 32-bit real pre-defined output DataLink will equate to
a parameter 0:1892 [VRef Selected] value of 60.2 Hz or 60.2 rpm depending
on the setting of parameter 0:46 [Velocity Units]. It is highly recommended
that 0:46 be set to 1=’RPM’ to match the velocity units used by the PowerFlex
700S.
PowerFlex 700S DPI
Communications
The PowerFlex 700S supports 16/32-bit integer [INT/DINT] and floating
point [REAL] DataLinks, which can be selected on the Logix module
definition screen (for details, see the communication adapter documentation).
The PowerFlex 700S with 20-COMM-x communication option module
supports 8 Input and 8 Output 32-bit DataLinks. When using Logix V16 and
later PowerFlex 700S internal/communication parameter values and Logix
DataLink tags automatically have the same data type and scaling factor as the
PowerFlex 700S internal values.
Figure 29
shows the Module Definition dialog box for a PowerFlex 700S with
20-COMM-E Ethernet/IP adapter using one 32-bit DINT parameter (A1)
and two 32-bit REAL parameters (A2 and B1) on the Input, as well as two 32-
bit REAL parameters (A1 and A2) on the Output.
Figure 29 - Module Definition
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