Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual - Manual (Page 35)

Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013 35
Detail Drive Configuration and Operation Chapter 1
Example Configuration 2:
Writing a Real Parameter using a Datalink:
• 111 [Torque Ref 1] is linked to 708 [Data In A1 Real]
The value that is sent to [Data In A1 Real] from the controller will show
up in [Torque Ref 1]. [Data In A1 Real] is used because [Torque Ref 1] is a
real integer parameter.
“Data Out” Parameters
[Data Out x Int] and [Data Out x Real] parameters are outputs from the drive to
the controller and are used to read parameters. A total of 8 parameters can be read
with the “Data Out” parameters. In the 700S, each parameter is either a 32 bit
integer or a 32 bit floating point (real). This means that the datalink parameters
are 32 bits. Parameter 723 [Dlink OutDataTyp] is used to select whether each of
the 8 “Data Out” data is an integer or real.
To read a 16 bit or 32 bit integer parameter, one of the [Data Out x Int]
parameters must be linked to the desired integer parameter. Then the bit
corresponding to the [Data In x Int] parameter in [Dlink OutDataType] is set to
0.
To read to a real parameter, one of the [Data Out x Real] parameters must be
linked to the desired real parameter. Then bit corresponding to the [Data Out x
Real] parameter in [Dlink OutData Type] is set to 1.
Example Configuration 3:
Reading an Integer Parameter Using a Datalink
• 724 [Data Out A1 Int] is linked to 741 [Position Status]
• 723 [Dlink OutData Type] bit 0 is set to 0
The value from [Data Out A1 Int] to the controller contains the value of
[Position Status]. [Data Out A1 Int] is used and [Dlink OutDataType] bit
0 is set to 0 because [Position Status] is an integer parameter.
Example Configuration 4:
Reading a Real Parameter using a Datalink
• [Data Out A1 Real] is linked to [Output Current]
• [Dlink OutDataType] bit 1 is set to 1
The value from [Data Out A1 Real] to the controller contains the value of
[Output Current]. [Data Out A1 Real] is used and [Dlink OutDataType]
bit 0 is set to 1 because [Output Current] is a real parameter.