
Using the I/O 5-3
The Logic Command word is always word 0 in the output image. The
Logic Command is a 16-bit word of control produced by the controller
and consumed by the adapter. The Logic Status word is input word 2 for
ControlLogix or input word 0 for PLC-5. The Logic Status is a 16-bit
word of status produced by the adapter and consumed by the controller.
This manual contains the bit definitions for compatible products
available at the time of publication in Appendix
D, Logic Command/
Status Words. For other products, refer to their documentation.
The Reference word is always word 1 in the output image. The
Reference (16 bits) is produced by the controller and consumed by the
adapter. The Feedback word begins at input word 3 for ControlLogix or
input word 1 for PLC-5. The Feedback (16 bits) is produced by the
adapter and consumed by the controller.
Using Logic Command/Status
Using Reference/Feedback
Size Drive Valid Values
(1)
(1)
The Reference/Feedback for a PowerFlex 4, PowerFlex 40 or Powerflex 400 drive is
set in Hz and not in engineering units like PowerFlex 7-Class drives. For example,
“300” equates to 30.0 Hz (the decimal point is always implied) for PowerFlex 4/40, and
“3000” equates to 30.00 Hz for PowerFlex 400. Also, a minus value equates to reverse
motor direction, and a plus value equates to forward motor direction.
Example
16-bit
PowerFlex 4 -240.0 to +240.0 Hz
Figure 5.1
or
Figure 5.2
PowerFlex 40 -400.0 to +400.0 Hz
PowerFlex 400 -320.00 to +320.00 Hz
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