System Expansion; System Image Readout; Extended Smi Command Set; Swapping Addresses And Readdressing - WAGO 750 Product Manual

Functions
At most 3000 telegrams can be saved. A telegram consists of 17 bytes for SMI data and
4 bytes for the timestamp. If the memory is full, no further events are logged by default.
As an option, the setting can be configured to overwrite the oldest log entry.
The logging function saves the telegrams in the I/O module's RAM. If the voltage supply
is interrupted, all previously stored telegrams are lost.
You can access the log files through the WAGO SMI Configurator.

4.2.2.2 System Expansion

The system expansion offers support if, when additional SMI LoVo Drives are integrated,
address conflicts arise that cannot be resolved by the automatic functions of the SMI
master module.
The system expansion first resolves the address conflicts and then deletes missing
SMI LoVo Drives. The existing process image is retained, so the existing
SMI LoVo Drives keep their position. The SMI LoVo Drives that are to be added are then
sorted in ascending order. The addresses freed up by the deleted SMI LoVo Drives are
used for this purpose.
If no SMI address conflict occurs, system expansion is not performed, because other
functions in the WAGO SMI Configurator and IEC function blocks are available for users
to reorder SMI LoVo Drives and to delete missing SMI LoVo Drives.

4.2.2.3 System Image Readout

The system image includes the configurations and addresses of the SMI LoVo Drives.
Fixed positions POS1 and POS2 and the comments stored in the SMI Master Module are
saved.
The manufacturer ID, drive ID and drive type are also added to the system image, which
depend on the SMI address.
The drive configuration and addresses are read out directly from the SMI LoVo Drive and
stored in the system image. If the data cannot be read out due to a conflict, an invalid
value is set, and the conflict is reported when the system image is read out.

4.2.2.4 Extended SMI Command Set

Both the WAGO SMI Configurator and the IEC function block library allow you to use all
the functions in accordance with the SMI specification, such as moving to absolute posi-
tions of the SMI LoVo Drives and writing and reading drive parameters in the drives.

4.2.2.5 Swapping Addresses and Readdressing

The "Swap Addresses" function can swap the addresses of two SMI drives. Each
SMI LoVo Drive takes the address of the other drive, including any existing comments.
The "Readdress" function is used to assign a previously unused address to a drive. Any
comments are transferred to the new address.
18 Product manual | Version: 3.0.0
SMI Master LoVo; 24 VDC
753-1631