ProSoft Technology MVI94-DNP User Manual

Page 61

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MVI94-DNP ♦ Flex I/O

Diagnostics and Troubleshooting

DNP 3.0 Server over Ethernet Communication Module

User Manual

ProSoft Technology, Inc.

Page 61 of 131

December 17, 2010

Word

Block
Number

Block
Offset

Variable Name

Description

53

208

7

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

209

2

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

209

3

Scan Counter LSB

Program scan counter

56

209

4

Scan Counter MSB

57

209

5

Free Memory LSB

Free memory in module

58

209

6

Free Memory MSB

59

209

7

Reserved

Future Use

60

210

2

DNP Slave Float Input

Event count

This value contains the total number of

floating-point input events which have

occurred.

61

210

3

DNP Slave Double Float

Input Event count

This value contains the total number of
double floating-point input events which

have occurred.

62

210

4

Reserved

Future Use

63

210

5

Reserved

Future Use

64

210

6

Reserved

Future Use

65

210

7

Reserved

Future Use

4.6.2 Command Error List

Each command in the command list has a reserved word value for a status/error

code. This error data list can be read using the Configuration/Debug Port.

Additionally, can be retrieved from the module by the processor using command

block 9950.
The first word in the register location defined contains the status/error code for

the first command in the port's command list. Each successive word in the

command error list is associated with the next command in the list. Therefore, the

size of the data area is dependent upon the number of commands defined.
Refer to the following Error Codes section to interpret the status/error codes

present in the data area.

4.6.3 Slave Status Data

The slave status data contains the communication statistics for each IED unit

interfaced with by the master port. This information is available for viewing using

the configuration/debug port or by using command block 9949 requests from the

processor.

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