DAQ IoG Manual do utilizador - Página 13

Procurar online ou descarregar pdf Manual do utilizador para Porta de entrada DAQ IoG. DAQ IoG 18 páginas. Gateway comm module

D A Q E L E C T R O N I C S

Link LK3 is arranged as follows:

Link Pair 1-2: Arcnet (-)

If the IoG is at the end of an Arcnet chain in which the nodes are connected together with

twisted pair cabling, install shorting jumpers across link pairs 1-2 and 3-4.

If the IoG resides within the Arcnet chain (not an end node), remove the shorting jumpers

across link pairs 1-2 and 3-4.

3.5 Arcnet TX Enable Positive/Negative Drive Link (LK4)

The ArcNet TX Enable Positive/Negative Drive link is used to select either positive or

negative TX Enable signal driving of externally connected devices, such as a Fiber-Optic

converter.

As shipped from the factory, this link is set for Positive Drive, which is compatible with

all current DAQ devices.

DIP Switch SW2 serves several purposes, therefore proper setup of this switch is

essential to the proper operation of the IoG.

SW2 is an eight-position DIP switch that handles three setup parameters. These are the

node address, bit or byte protocol selection for port 1, and start bit polarity selection.

These are discussed individually in the sub-sections that follow.

Link Pair 3-4: Arcnet (+)

- 13 -

Callisto IoG