User Manual

Industrial ScopeMeter®

Fieldbus Mode

Figure 12 shows the bus health indicator boundaries. The

high level voltage of a bus must be between +3.0 V (MIN)

and +15.0 V (MAX). Depending on the measurement

result, the displayed indicator will be:

Result is between 4.2 and 13.8V. (10 % of

12 V = 1.2 V)

Result is between 3 V and 4.2 V, or between

13.8 V and 15 V.

Result is <3 V or >15 V.

hxv34.eps

Figure 12. Bus Health Indicator Boundaries

How to View the Bus Waveform Screen

To view the waveform eye pattern of the bus voltage:

1. Push 3. The screen shows the eye pattern. The

screen shows the waveforms of one bit time

triggered on a positive, as well as, on a negative

edge in persistence mode.

2. Push 1 to clear the persisted waveforms and

restart to show the waveform.

hxv35.eps

3. Push  to freeze the screen. Push  again to

clear the persistence waveform and restart the

waveform eye pattern.