Barcode Reader User Manual

Chapter 2 Installation and Configuration

Local Excitation Sense Selection

MIO or MIO E Series Boards

If you are using the SC-2043-SG with an MIO or MIO E Series board, you can locally sense the

exact level of the excitation voltage by routing the excitation voltage (internal or external) to one

of two analog channels, selected by jumpers W8 and W2. Table 2-4 shows these jumper

settings.

Setting jumper W8 to the EX position (the factory setting) routes the excitation voltage to ACH8

so you can use ACH<0..7> for conditioned strain gauge signal inputs. Setting jumper W8 to the

ST position routes an external signal (from the screw terminal labeled 4 in the MIO column, or

ACH8 if you are using the stick-on labels) to ACH8.

Setting jumper W2 to the EX position routes the excitation voltage to ACH0, leaving you

ACH<1..7> for conditioned strain gauge signal inputs. Setting jumper W2 to the CH0 position

(the factory setting) routes the conditioned strain gauge bridge signal (that entered via the CH0±

screw terminals) to ACH0.

Table 2-4. Local Excitation Sense Jumper Settings for MIO and MIO E Series Boards

Jumper Description Configuration

CH0 position—Place the jumper in

this position to route the conditioned

strain gauge bridge signal (that

entered via the CH0± screw

terminals) to ACH0. (factory setting)

EX position—Place the jumper in

this position to route the excitation

source voltage to ACH0.

CH0

EX position—Place the jumper in

this position to route the excitation

source voltage to ACH8. (factory

setting)

ST position—Place the jumper in this

position to route an external input

signal to ACH8.

EX ST