ProSoft Technology MVI71-DNP - Manual (Page 24)

MVI71-DNP ♦ PLC Platform Installing and Configuring the Module
DNP 3.0 Master/Slave Communication Module
Page 24 of 172 ProSoft Technology, Inc.
August 23, 2007
Word Variable Name Description
12 Block number error Number of BTW requests that resulted in an incorrect BTW
identification code.
13 DNP Slave Port total
number of message
frames received by
slave This value represents the total number of message frames
that have matched this slaves address on this port. This
count includes message frames which the slave may or
may not be able to parse and respond.
14 DNP Slave Port total
number of response
message frames sent
from slave This value represents the number of good (non-error)
responses that the slave has sent to the master on this
port. The presumption is that if the slave is responding, the
message was good. Note: This is a frame count.
15 DNP Slave Port total
number of message
frames seen by slave This value represents the total number of message frames
received by the slave, regardless of the slave address.
16 DNP Slave
synchronization error
count (Physical Layer
Error) This value counts the number of times a sync error occurs.
The error occurs when extra bytes are received before the
start bytes (0x05 and 0x64) are received.
17 DNP Slave overrun
error count (Physical
Layer Error) This value counts the number of times the overrun error
occurs. This error occurs when the mainline Data Link
Layer routine cannot read the data received on the
communication port before it is overwritten.
18 DNP Slave length error
count (Physical Layer
Error) This value counts the number of times an invalid length
byte is received. If the length of the message does not
match the length value in the message, this error occurs.
19 DNP Slave bad CRC
error (Data Link Layer
Error) This value counts the number of times a bad CRC value is
received in a message.
20 DNP Slave user data
overflow error
(Transport Layer Error) This value counts the number of times the application layer
receives a message fragment buffer which is too small.
21 DNP Slave sequence
error (Transport Layer
Error) This value counts the number of times the sequence
numbers of multi-frame request fragments do not increment
correctly.
22 DNP Slave address
error
(Transport Layer Error) This value counts the number of times the source
addresses contained in a multi-frame request fragments do
not match.
23 DNP Slave Binary
Input Event count This value contains the total number of binary input events
which have occurred.
24 DNP Slave Binary
Input Event count in
buffer This value represents the number of binary input events
which are waiting to be sent to the master.
25 DNP Slave Analog
Input Event count This value contains the total number of analog input events
which have occurred.
26 DNP Slave Analog
Input Event count in
buffer This value represents the number of analog input events
which are waiting to be sent to the master.
27 DNP Slave bad
function code error
(Application Layer
Error) This value counts the number of times a bad function code
for a selected object/variation is received by the slave
device.