M_TOT_NA_3

Transmission of tags.

- obj

ASDU object

|---

+ head

Reserved

|---

- ident

DATA UNIT IDENTIFIER

|

|---

eType

= 0x1D (29)

= M_TOT_NA_3

Type identification

|

|---

bSQ

= TRUE

Sequence of information objects

|

|---

nObj

= 1

Number of objects

|

|---

eCOT

Cause of transmission

|

|---

asduAddr

Common address of asdu

|

|---

eClass

Fifo priority class

|---

- info

INFORMATION OBJECT

|---

fc

Function code/type

|---

n

= 0

not used

|---

stream

Information element/object data

|---

length

= 5 + (i * 3)

|---

data

7

6

5

4

3

2

1

0

|---

data[0..1] =

FAN

Fault number

|---

data[2] =

NOT

Number of tags

|---

data[3..4] =

TAP

Tag position

|---

data[5] =

Function code/type

Tag 1

|---

data[6] =

Information number

|---

data[7] =

0

DPI

Double point information

|---

data[8..IEC870_MAX_ASDU_DATA_BYTE] =

Tag 2..i