Communication Configurations; Typical Programmable Controller Configurations - Allen-Bradley PowerFlex 70 User Manual

Communication
Configurations
Supplemental Drive Information
This appendix provides certification, specification, and communication information.
Topic

Communication Configurations

Output Devices
For product certifications and specifications, see the PowerFlex 70 Adjustable
Frequency AC Drive Technical Data, publication 20A-TD001.

Typical Programmable Controller Configurations

This section provides information for programmable controller configurations
and bit settings for logic command word and logic status word.
If block transfers are programmed to continuously write information to the
IMPORTANT
drive, be sure to properly format the block transfer.
If attribute 10 is selected for the block transfer, values are written only to RAM
and are not saved by the drive. This is the preferred attribute for continuous
transfers.
If attribute 9 is selected, each program scan completes a write to the
non-volatile Electrically Erasable Programmable Read-Only Memory (EEPROM)
of the drive. Because the EEPROM has a fixed number of writes, continuous
block transfers can quickly damage the EEPROM.
Do not assign attribute 9 to continuous block transfers. Refer to the individual
communications adapter user manual for additional details.
For a description of logic command word bit settings, see
For a description of logic status word bit settings, see
Rockwell Automation Publication 20A-UM001P-EN-P - February 2018
Appendix
Page
89
91
Table 13 on page
Table 14 on page 91.
A
90.
89