P_ME_NA_1

Parameter of measured value, normalized value.

- obj

 

 

 

 

ASDU object

   |---

+ head

 

 

 

Reserved

   |---

- ident

 

 

 

DATA UNIT IDENTIFIER

   |

   |---

eType

= 0x6E (110)

= P_ME_NA_1

Type identification

   |

   |---

bSQ

 

= FALSE

Sequence of information objects

   |

   |---

nObj

 

= 1

Number of objects

   |

   |---

bT

 

 

Test

   |

   |---

bPN

 

 

Positive/negative confirmation/activation

   |

   |---

eCOT

 

 

Cause of transmission

   |

   |---

nORG

 

 

Originator address

   |

   |---

asduAddr

 

 

Common address of asdu

   |

   |---

eClass

 

 

Fifo priority class

   |---

- info

 

 

 

INFORMATION OBJECT

 

   |---

objAddr

 

 

Information object address

 

   |---

stream

 

 

Information element/object data

   

 

   |---

length

= 3

 

   

 

   |---

data

 

7

6

5

4

3

2

1

0

 

 

 

 

   |---

data[0..1] =

NVA

Normalized value

 

 

 

   |---

data[2] =

LPC

POP

KPA

QPM: Qualifier of parameter of measured value

 

 

 

   |---

data[3..IEC870_MAX_ASDU_DATA_BYTE] =

 

Reserved