ProSoft Technology MVI69-ADM - Manual (Page 48)

Understanding the MVI-ADM API MVI-ADM ♦ 'C' Programmable
Developer's Guide 'C' Programmable Application Development Module
Page 48 of 342 ProSoft Technology, Inc.
February 20, 2013
When the module receives this command block, it transfers the module’s current
configuration to the processor. If the block transfer interface is used, the blocks
defined in the previous tables (-9000 and -6000 series blocks) will be sent from
the module. If the side-connect interface is used, the user data files will be
updated directly by the module.
Warm Boot Block (9998)
This block is sent from the PLC processor to the module (output image) when the
module is required to perform a warm-boot (software reset) operation. This block
is commonly sent to the module any time configuration data modifications are
made in the controller tags data area. This will cause the module to read the new
configuration information and to restart. The following table describes the format
of the control block.
Offset Description Length
0 9998 1
1 to 63 Spare 63
Cold Boot Block (9999)
This block is sent from the PLC processor to the module (output image) when the
module is required to perform the cold boot (hardware reset) operation. This
block is sent to the module when a hardware problem is detected by the ladder
logic that requires a hardware reset. The following table describes the format of
the control block.
Offset Description Length
0 9999 1
1 to 63 Spare 63
MVI94 Backplane Data Transfer
Central to the functionality of the module is the database. This database is used
as the interface between remote foreign slave devices or foreign master devices
and the Flex I/O bus. The size, content and structure of the database are
completely user defined.