CARLO GAVAZZI UDM 40 - PROGRAMMING Manual de usuario descargar pdf (Pagina 10)

CARLO GAVAZZI

CONTROLS

SERIAL COMMUNICATION PROTOCOL

UDM - USC

V1 R1

Page

Example 1: reading of all the variables stored in RAM

All variables request frame (8 byte):

01h 04h

30h

01h 00h

06h

CRC

All variables answer frame (17 byte):

01h 04h

0Ch

01h

00h 07h

07h

00h 03h

00h

03h

00h 0Eh

00h

CRC CRC

A B C F G H I L M N O P Q R S T U

Decimal point request frame (8 byte):

01h 04h

E0h

08h 00h

01h

CRC

Decimal point answer frame (7 byte):

01h

04h

02h 00h

01h

CRC

A B C D E T U

D,E: Decimal point value: 0001h (1 decimal)

F,G: Measure value: 0100h (0256 decimal)

H,I: MAX value: 0707h (1799 decimal)

L,M: Min value: 0003h (3 decimal)

N,O: Modules value: 0003h (0000 0000 0000 0011)

P,Q: I/O state value: 000Eh (0000 0000 0000 1110)

R,S: Firmware Rev. value: 0000h (0 decimal)

Variable value (Measure): 25.6

Variable value (MAX): 179.9

Variable value (Min): 0.3

Display type: UDM35

Module type: Two relay module

Alarm state: Alarm 1 = OFF

Alarm 2 = ON

Alarm 3 = ON

Alarm 4 = ON

Blink: OFF

EEE: OFF

Sign: OFF

Firmware rev.: 0

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 22 23

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CARLO GAVAZZI UDM 40 - PROGRAMMING Manual de usuario Pagina 10

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