MD‑SI‑DP1 Communication
‑191‑
Application
The following figure shows the PKW data sent by the master and PKW response data
returned by the AC drive when the master reads the AC drive parameter F0‑08.
Figure 8‑7 Example PKW data sent by the master when reading an AC drive parameter
The following figure shows the PKW data sent by the master and PKW response data
returned by the AC drive when the master modifies the AC drive parameter F0‑08.
Figure 8‑8 Example PKW data sent by the master when modifying an AC drive parameter
PKW data exchange with the AC drive is performed cyclically. Continuous write
command (PKE = 0x20xx) on the EEPROM will significantly shorten the service life of
the AC drive's main control chip. Therefore, to modify AC drive parameters, you are
advised to perform aperiodic write operations (see SFB53 described in "
7.7.4
Performing Aperiodic Read/Write Operations on the AC Drive Slave
"
on page 173
"
7.7.4
Performing Aperiodic Read/Write Operations on the AC Drive Slave
"
on page 173
" "
on
page
) or write to RAM addresses in PKW. The following table lists the RAM addresses
of the parameters.
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