CARLO GAVAZZI WM4-96 - PROGRAMMING Instrukcja Użytkownika Pobierz pdf (Strona 52)

CARLO GAVAZZI

CONTROLS

SERIAL COMMUNICATION PROTOCOL

WM4-96

V1 R3

Page

6.2 RS232 INTERFACE

General technical specifications Note

Baud rate 2400, 4800, 9600, 38400 bps

Data format 1start/8 data / 1 stop bit / no parity

Address Not managed A

Note:

A. Nevertheless in the address cell a value from 1 to 255 must be.

9-pole female RS232 connector Note

Pin 1 DCD

Used only for modem connection

Pin 2 TX

To be connected to the RX terminal

of the PC COM

Pin 3 RX

To be connected to the TX terminal

of the PC COM

Pin 4 Not used

Pin 5 GND

To be connected to the GND terminal

of the PC COM

Pin 6 Not used

Pin 7 Not used

Pin 8 Not used

Pin 9 RING

Used only for modem connection

Note: to connect WM4 with a PC use a serial cable with “pin to pin” connections.

Timing characteristics for RS232 communication msec

T response: max answering time 600ms

T response: typical answering time 100ms

T delay: minimum time for a new query 10ms

T null: maximum interruption time on the request frame 50msec

Note: T null is independent of the selected baud-rate value

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

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CARLO GAVAZZI WM4-96 - PROGRAMMING Instrukcja Użytkownika Strona 52