Caple C806C Manuel d'instructions télécharger pdf (Page 17)

PF2100

Modbus Card Instruction Manual v1.1

Jan 5, 2012

Page 13

Ensure that you use 2 wires from the same color coded pair of wires if you are using Cat-5e cable.

Connecting the “GND” Pin

It is important to provide a common ground for all devices on the RS-485 bus. The common ground is usually run over an otherwise unused wire in the Cat-5e

cable.

If your device is not at the end of the bus, use a shunt wire to “drop” the ground connection onto the bus. Make sure to keep the wires used for the “drops” as

short as possible.

Note that the ground pins are a bit different depending on the version of card that you have:

• For Modbus Card v1.0, there is only one ground pin on the pluggable header (the rightmost pin). See Figure 13.

• For Modbus Card v2.0, there are three ground pins on the pluggable header (the three rightmost pin). You only need to connect to one of these. See

Figure 12.

Figure

Figure 12

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 25 26

Commentaires sur ces manuels

Pas de commentaire

Caple C806C Manuel d'instructions Page 17

Commentaires sur ces manuels

Produits connexes et manuels pour Plaques chauffantes Caple C806C