ProSoft Technology InRax MVI71-DNPSNET, Руководство пользователя

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MVI71-DNPSNET ♦ PLC Platform Reference
Distributed Network Protocol Interface Module
Page 70 of 100 ProSoft Technology, Inc.
September 22, 2008
Word Variable Name Description
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.
28 DNP Slave object
unknown error
(Application Layer Error) This value counts the number of times a request for an
unsupported object is received by the slave device.
29 DNP Slave out of range
error (Application Layer
Error) This value counts the number of times a parameter in the
qualifier, range or data field is not valid or out of range.
30 DNP Slave message
overflow error
(Application Layer Error) This value counts the number of times an application
response message from the slave is too long to transmit.
31 DNP Slave multi-frame
message from DNP
Master error (Application
Layer Error) This value counts the number of times the slave receives a
multi-frame message from the master. The application
does not support multi-frame master messages.
32 Free Memory LSB
33 Free MemoryMSB
Free memory in module
5.6 MVI71-DNPSNET Module Internal Indication Bits (IIN Bits) for DNP
Server
The internal indication bits are stored in a word that follows the function code in
all response messages. These bits report status and error information to the
master DNP device. The following description describes the word.
5.6.1 First Byte
Bit Description
0 All stations message received. Set when a request is received with the destination
address set to 0xffff. Cleared after next response. Used to let the master station know
that the broadcast was received.
1 Class 1 data available. Set when class 1 data is ready to be sent from the slave to the
master. Master should request class 1 data when this bit is set.
2 Class 2 data available. Set when class 2 data is ready to be sent from the slave to the
master. Master should request class 2 data when this bit is set.