Rockwell Automation 20-750-ENETR PowerFlexDual-Port EtherNet/IP Option Module - Manual (Page 74)

74 Rockwell Automation Publication 750COM-UM008A-EN-P - July 2012
Chapter 4 Configuring the I/O
14. Save your RSLogix 5000 project and download the project to the Logix
controller.
ADC and Logix Memory
Starting in RSLogix 5000 software, version 16.00, drive configuration settings
have been stored in the project's ACD file which is downloaded and stored in the
controller. Configuration settings for ADC-capable devices contain additional
port and scripting information to choreograph the download process, so
additional Logix memory is used compared with PowerFlex 750-Series drives in
RSLogix 5000 software, version 16.00…19.00 systems. Note these examples of
memory usage:
• A PowerFlex 755 drive with no option modules, minimal parameters
changed from defaults, and no DeviceLogix program consumes
approximately 8.5 kilobytes of Logix memory per drive.
• A PowerFlex 755 drive with four option modules, approximately 50
changed parameters, and a 32-block DeviceLogix program consumes
approximately 25 kilobytes of Logix memory per drive.
The majority of Logix controllers have megabytes of memory available, so this
typically should not be an issue. You can monitor Logix memory usage in
RSLogix 5000 software. From the Controller Properties dialog box, click the
Memory tab.
IMPORTANT Note that some parameters can affect the minimum/maximum of
other parameters and can cause the settings of these parameters to be
“out of range.” This, in turn, will cause ADC to fail with a module fault
(code 16#0010) “Mode or state of module does not allow object to
perform requested service.”
For example, drive Parameters 520 - [Max Fwd Speed] and 521 - [Max
Rev Speed] affect the minimum/maximum of the following drive
parameters:
• 329 - [Alternate Manual Reference Analog High]
• 547 - [Speed Reference A Analog High]
• 552 - [Speed Reference B Analog High]
• 564 - [Digital Input Manual Reference Analog High]
• 571…577 - [Preset Speed 1…7]
• 602 - [Trim Reference A Analog High]
• 606 - [Trim Reference B Analog High]
Setting drive Parameter 520 or 521 to a lower value could cause the
settings in the above parameters to become “out of range.” If you
adjust Parameter 520 or 521, check the above parameters and make
any necessary updates to verify they are “in range.”
NOTE: It is recommended to review all parameters needed for your
application to verify that they are “in range.” When using version 4.02 (or
later) Drive AOPs, a yellow highlight and text notification in the
Parameters Linear List editor appears to identify out of range parameters.