CARLO GAVAZZI WM4-96 - PROGRAMMING Manual de usuario descargar pdf (Pagina 45)

CARLO GAVAZZI

CONTROLS

SERIAL COMMUNICATION PROTOCOL

WM4-96

V1 R3

Page

5.1 DATA LOGGING SAMPLE FORMAT

Every sample includes the following information:

• Number of logged variable (1 <= n <= 8)

• Type of variable 1

• Value of variable 1

• …

• Type of variable n

• Value of variable n

• Hour and date

The sample is coded in a number of bytes which is depending on the number of logged variables (n) according

to the following formula: byte=6 + nx3. In the next example the coding of a sample is explained in detail.

Example 25: data logging sample coding

In the following example every sample includes 2 variables.

Byte ADDRESS BYTE VARIABLE VALUE MEANING

000

1 N° of logged variables 02h 2 variables

001

1 Type of variable 1 00h VL1-N

002

1 Value (MSB) 01h

003

1 Value (LSB) 7Eh 017Eh = 382 V

004

1 Type of variable 2 0Fh

WΣ

005

1 Value (MSB) 09h

006

1 Value (LSB) 65h 15.0 W

8,9

007

2 Year, month, day (see note) 0593h 19 December 2002

009

1 Hour 0Dh 13

00A

1 Minute 01h 01

00B

1 Second 00h 00

00C

1 N° of logged variables 02h 2 variables

00D

1 Type of variable 1 00h VL1-N

00E

1 Value (MSB) 01h

00F

1 Value (LSB) 7F 017Fh = 383 V

010

1 Type of variable 2 0Fh

WΣ

011

1 Value (MSB) 09h

012

1 Value (LSB) 75h 15.1 W

20,21

013

2 Year, month, day (see note) 0593h 19 December 2002

015

1 Hour 0Dh 13

016

1 Minute 02h 02

017

1 Second 00h 00

…

… … … …

NOTE: the year-month-day format is the following:

Year Month Day

Byte8 + Byte9 XXXXXXX

XXXX XXXXX

Example: 0593h=0000 0101 1001 0011

Year = 0000 010 = 2 è 2002

Month = 1 100 = 12 è December

Day = 1 0011 = 19

Gross Automation (877) 268-3700 · www.carlogavazzisales.com · [email protected]

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 56 57

Comentarios a estos manuales

Sin comentarios

CARLO GAVAZZI WM4-96 - PROGRAMMING Manual de usuario Pagina 45

Comentarios a estos manuales

Relacionado con productos y manuales para Redes CARLO GAVAZZI WM4-96 - PROGRAMMING