ProSoft Technology MVI94-DNP - Manual (Page 78)

Reference MVI94-DNP ♦ Flex I/O
User Manual DNP 3.0 Server over Ethernet Communication Module
Page 78 of 131 ProSoft Technology, Inc.
December 17, 2010
The Flex I/O bus reads data from and write data to the user data area using the
backplane interface. The module interfaces data contained in remote DNP slave
devices to the database using the DNP application port. User commands are
issued out the master port from a command list. These commands gather or
control data in the slave devices. The following illustration shows the
relationships discussed above for a simulated master device:
The database defined in the module depends on the DNP device type emulated.
If the module emulates a DNP slave device, the database will be as shown in the
following example:
BTR/BTW ID'S DNP MEMORY
BLOCK 0 (DIGITAL
INPUT DATA)
DIGITAL INPUT DATA
DIGITAL OUTPUT DATA
BLOCK 20 (DIGITAL
OUTPUT DATA)
COUNTER DATA
BLOCK 40 (COUNTER
DATA)
BLOCK 41 (COUNTER
DATA)
ANALOG INPUT DATA
BLOCK 60 (ANALOG
INPUT DATA)
BLOCK 61 (ANALOG
INPUT DATA)
ANALOG OUTPUT DATA
BLOCK 62 (ANALOG
INPUT DATA)
BLOCK 80 (ANALOG
OUTPUT DATA)
BLOCK 81 (ANALOG
OUTPUT DATA)
FROZEN COUNTER,
LAST VALUE AND
EVENT DATA