Vaisala DRYCAP DMT340 SERIES Guide de l'utilisateur Page 65

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 191
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 64
Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 63
1102-027
Figure 43 2-Wire RS-485 Bus
Table 7 2-Wire (Switch 3: Off)
RS-485 master
Data
DMT340
D1+
D1+
D0-
D0-
8. When operating in communication mode RS-422, set both switches
3 and 4 to ON position (4-wire wiring is required for RS-422
mode).
9. Connect the power and close the cover.
Termination
Termination
Junction
box
Junction
box
Junction
box
120R
D0-
D1+
Common
Switch
Term off
Term off
2/4 wire off
RS422 off
Stub
Stub
Stub
RS485-1
RS485-1
RS485 bus master
Twisted pair Common line
Address NN
Address MM
Common
D0-
D1+
Switch
Term off
Term off
2/4 wire off
RS422 off
Common
D0-
D1+
120R
Twisted pair Common line
Vue de la page 64
1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 190 191

Commentaires sur ces manuels

Pas de commentaire