CARLO GAVAZZI WM4-96 - PROGRAMMING Manual de usuario descargar pdf (Pagina 17)

CARLO GAVAZZI

CONTROLS

SERIAL COMMUNICATION PROTOCOL

WM4-96

V1 R3

Page

Example 13: “OFF Set-point” (alarm deactivation) read command

4-word read command request frame (8 byte):

01h

04h

01h

E8h

00h

04h

CRC

Read command answer frame (13 byte):

01h

04h

08h

00h

32h

00h

CRC

Digital output 0: not used (digital output 0 is not set as alarm, see example 7)

Digital output 1: 5.0% (0032h = 50 decimal)

Digital output 2: not used

Digital output 3: not used

Example 14: “Alarm activation delay” read command

4-word read command request frame (8 byte):

01h

04h

01h

F0h

00h

04h

CRC

Read command answer frame (13 byte):

01h

04h

08h

00h

04h

00h

CRC

Digital output 0: not used (digital output 0 is not set as alarm, see example 7)

Digital output 1: 4 seconds

Digital output 2: not used

Digital output 3: not used

Example 15: “Latch alarm” reset command

To reset a UP-LATCH or DOWN-LATCH alarm, the relevant alarm byte must be set to 1.

Reset command request frame (8 byte):

01h

06h

01h

C4h

00h

01h

CRC

Reset command answer frame (8 byte):

01h

06h

01h

C4h

00h

01h

CRC

To reset the alarm 1, the byte at address 01C5h must be set to 1. The byte at address 01C4h must

be set to 00h, since it is relevant to alarm 0.

2.11 WRITE COMMAND FOR REMOTE CONTROL OUTPUT

The remote control digital output memory area is described in Table 5 and consists in 4 bytes

starting from address 08D8h (Remote1=8D8h, Remote2=8D9h, and so on).

To switch ON the n

remote control output, the value 02h must be written in the “Remote n” byte,

while to switch OFF the n

remote control output, the value 01h must be written in the “Remote n”

byte. Note again that the write command always writes 1 word (2 bytes).

Request frame: R1 = ON and R2 = OFF (8 byte):

01h

06h

08h

D8h

02h

01h

CRC

Answer frame (8 byte):

01h

06h

08h

D8h

02h

01h

CRC

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

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CARLO GAVAZZI WM4-96 - PROGRAMMING Manual de usuario Pagina 17

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