Using logic command/status, Using reference/feedback – Rockwell Automation 22-COMM-C ControlNet Adapter User Manual

Page 53

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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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