Purpose

Executes the UDS WriteMemoryByAddress service. Writes data to the ECU memory. Format

Input

data in defines the memory block to be written to the ECU.
diag ref in specifies the diagnostic session handle, obtained from Open Diagnostic on CAN FD.vi or Open Diagnostic on IP.vi and wired through subsequent diagnostic VIs. Normally, it is not necessary to manually manipulate the elements of this cluster.
memory address defines the memory address to which data are to be sent. Note that memory address length specifies how many bytes of the address are sent to the ECU. This defines the maximum address you can use.
memory size defines the length of the memory block to be sent. Note that memory size length specifies how many bytes of the size are sent to the ECU. This defines the maximum size you can use.
error in is a cluster that describes error conditions occurring before the VI executes. If an error has already occurred, the VI returns the value of the error in cluster to error out.
status is TRUE if an error occurred. This VI is not executed when status is TRUE.
code is the error code number identifying an error. A value of 0 means success. A negative value means error: the VI did not execute the intended operation. A positive value means warning: the VI executed intended operation, but an informational warning is returned. For a description of the code, wire the error cluster to a LabVIEW error-handling VI, such as the Simple Error Handler.
source identifies the VI where the error occurred.
memory address length specifies how many bytes of the address are sent to the ECU. The default is 4.
memory size length specifies how many bytes of the size are sent to the ECU. The default is 4.

Output

diag ref out is a copy of diag ref in. You can wire it to subsequent diagnostic VIs.
success? indicates successful receipt of a positive response message for this diagnostic service.
error out describes error conditions. If the error in cluster indicated an error, the error out cluster contains the same information. Otherwise, error out describes the error status of this VI.
status is TRUE if an error occurred.
code is the error code number identifying an error. A value of 0 means success. A negative value means error: the VI did not execute the intended operation. A positive value means warning: the VI executed intended operation, but an informational warning is returned. For a description of the code, wire the error cluster to a LabVIEW error-handling VI, such as the Simple Error Handler.
source identifies the VI where the error occurred.

Description

Similar to UDS WriteMemoryByAddress.vi. You can define the size in bytes of the address and size parameters (the default is 4).