Rockwell Automation Publication 750COM-UM009A-EN-P - May 2017 83
Configuring the Drive in a Logix System Chapter 3
Programmatically
Monitoring Connection
Status and the ADC
Configuration Signature
The Ethernet connection status between the Logix controller and PowerFlex
drive can be monitored using a GSV instruction.
•Class: Module
• Instance: {name of drive in project}
• Attribute: Entry status (returns a value that indicates status)
See the RSLogix 5000 / Studio 5000 application Help for more information
on the GSV Instruction, GSV/SSV Objects, and the Module Object.
The Configuration Signature for a given Port in the PowerFlex drive can be
monitored using an MSG instruction. The following MSG instruction reads
the Configuration Signature from Port 0 in a PowerFlex drive.
The MSG instruction Get Attribute Single uses the DPI™ Device Object
(Class 92 Hex) to access Port 0 in drive (Instance 0). It then reads the
Configuration Signature (Attribute 26 Hex = 38 Dec). See DPI Device Object
on page 138 for additional information.
ADC doesn’t
complete when 20-
750-S1 (S1) option
module is used.
Required manual steps to
unlock/lock and set the
password are not performed.
ADC is not fully automatic when used with a 20-750-S1
(S1) module. Safety systems have a mandatory
requirement for manual steps in the configuration process.
See Special Considerations For 20-750-S1 Safe Speed
Module (S1) on page 75 for more information.
ADC fails due to
parameter out of
range error.
The Min/Max on a parameter
was affected when another
parameter was adjusted.
Out of range parameters have a red highlight in the Linear
List parameter editor. Locate and correct any out of range
parameters.
Drive is at default
configuration
settings after ADC is
performed
(equivalent to a
Reset to Defaults).
Drive configuration did not
upload and save to the drive
AOP and was not saved in the
ACD project that is
downloaded to the controller.
Can occur when a second software tool is being used to
configure the drive. A second tool is not necessary and not
recommended. Upload the configuration from the drive
and save it in the drive AOP. Download project to controller.
Table 5 - Logix Control ADC Failure Examples
Scenario/Error Probable Cause Potential Solutions
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