Instructions

NetTEST II Menu Guide

5.2.1.7 Slave signal quality

Figure 13: Screen ‘Slave signal quality’

With the Slave signal quality, the signal level of the addressed

DP Slave is measured. This should be with an impeccable unit

and correctly terminated bus and a cable length of 1 m from the

measuring point to the Slave at approx. 6.3 Volt. Per 100 m

more cable between NetTEST II and the device to be scanned,

the level reduces by approx. 0.2 Volt.

U < 2.5 V: Weak level or no longer detectable.

2.5 - 7.2 V: Level is ok.

U > 7.2 V: If the indicated level is >7.2 Volt, this is an

indication for a faulty power supply of the

Slaves or for reflections at the bus.