Mettler Toledo ICS425d-XS Manuel d'utilisateur télécharger pdf (Page 29)

Interface descriptionBBA422 / BBA425 / BBK422

29User manual 22011381A 03/05

4.1.2 Requirements for communication between scale and PC

• The scale must be connected to the RS232, RS485, USB or Ethernet interface of a

PC with a suitable cable.

•The interface of the scale must be set to "Dialog" mode, see Section 3.6.1.

• A terminal progam must be available on the PC, e.g. HyperTerminal.

• The communication parameters baud rate and parity must be set in the terminal

program and on the scale to the same values, see Section 3.6.3.

4.1.3 Notes on network operation via the optional interface RS422/485

Up to 32 scales can be networked with the optional RS422/485 interface. In network

operation, the scales must be addressed from the computer before commands can be

sent and weighing results received.

Description of the steps Host Direction Scale

1. Host addresses the scale, e.g. with the address

3A hex.

2. Host sends a SICS command, e.g. SI SI <CRLF> –––>

3. The scale confirms receipt of the command and

sends the address back

<––– <ESC> 3A

4. The scale responds to the command and returns

control of the bus to the host

<––– S_S____45.02_kg

<CRLF>

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Mettler Toledo ICS425d-XS Manuel d'utilisateur Page 29