Curtis Instruments AC F4-A - Sdo Write Message

4 — PROGRAMMABLE PARAMETERS
Curtis AC F4-A Motor Controller – August 2020 Return to TOC
pg. 32
VCL e Curtis Vehicle Control Language (VCL) is an easy to use, powerful
programming language that allows developers to customize system
functionality for every application. VCL provides exible CAN
communication and I/O conguration. It for customized wiring/setup
and easy integration of Curtis instrumentation. VCL enables Curtis
motor controllers to perform as ‘vehicle managers’ eliminating the need
for costly, additional system controllers.
Note, for migrating existing non-F-series VCL to the F-series controllers,
contact the Curtis distributor or the regional Curtis sales-support oce.
SDO WRITE MESSAGE
To retain parameter values in non-volatile memory (NVM) via CANopen SDO write messages,
write a non-zero value to SDO_NVM_Write_Enable (Object Index 0x2008, sub-index 0x00) before
changing parameter values. is will cause parameter changes to be written to non-volatile memory.
Note that having the SDO_NVM_Write_Enable set to zero only saves the parameter changes to
ephemeral (RAM) memory.