Prosoft-technology MVI69-DNP Manual de usuario descargar pdf (Pagina 98)

MVI69-DNP ♦ CompactLogix or MicroLogix Platform Reference

DNP 3.0 Master/Slave Communication Module

Page 98 of 129 ProSoft Technology, Inc.

November 3, 2008

Word

Block

Offset

Variable Name Description

50 52

DNP Master Port

Application Layer

Receive Memory

Allocation Error Count

This value represents the number of memory

allocation errors for application layer receive

blocks.

51 53

DNP Master Port

Application Layer

Transmit Memory

Allocation Error Count

This value represents the number of memory

allocation errors for application layer transmit

blocks.

52 54

DNP Master

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.

53 55

DNP Master 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.

54 56

DNP Master Bad CRC

Error Count (Physical

Layer Error)

This value counts the number of times a bad

CRC value is received in a message.

55 57 Scan Counter LSB Program scan counter

56 58 Scan Counter MSB

57 59 Free Memory LSB Free memory in module

58 60 Free Memory MSB

59 61

DNP Slave Port Transmit

State

Value of the DNP Slave state machine for

transmit.

60 62 DNP Float Event Count

Total number of events generated for analog

floating-point input data points.

61 63

DNP Double Event

Count

Total number of events generated for analog

double, floating-point input data points.

62 64

Event Message Queue

Count

Number of event messages waiting to send to

processor.

63 65

Event Message Queue

Overflow

Flag to indicate if the event message queue

has overflowed. If more than 200 event

messages are received on the master port and

they are not sent to the processor, this flag will

be set (1). The flag will clear after the

messages are sent to the processor.

64 to 77 66 to 79 Reserved Future Use

78 80 Error_List[0] First value in error list

79 81 Error_List[1] Second value in error list

- - - -

137 139 Error_List[59] Last value in error list

1 2 ... 93 94 95 96 97 98 99 100 101 102 103 ... 128 129

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